Ebyte E32-868T20S, E32-868T30S, E32-915T30S, E32-400T20S, E32-433T30S User Manual

E32-433T20DC User Manual

SX1278 433MHz 100mW DIP Wireless Module

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual

CONTENT

1. OVERVIEW ..................................................................................................................................3

1.1 INTRODUCTION................................................................................................................................................................................3

1.2 FEAT URES .........................................................................................................................................................................................3

2. SPECIFICATION AND PARAMETER .....................................................................................4

2.1 LIMIT PARAMETER ..........................................................................................................................................................................4

2.2 OPERATING PARAMETER ................................................................................................................................................................4

3 SIZE AND PIN DEFINITION .........................................................................................................5

4 CONNECT TO MCU .......................................................................................................................6

5 FUNCTION DESCRIPTION ..........................................................................................................6

5.1 FIXED TRANSMISSION.....................................................................................................................................................................6

5.2 BROADCAST ING T RANSMISSION ...................................................................................................................................................7

5.6.1 Indication of UART output

...................................................................................................................................................8

5.6.2 Indication of wireless transmitting

.....................................................................................................................................8

5.6.3 Configuration procedure of module

....................................................................................................................................9

5.6.4 Notes for AUX

.........................................................................................................................................................................9

6 OPERATING MODE .................................................................................................................... 10

6.1 MODE SWITCH.............................................................................................................................................................................. 10

6.2 NORMAL MODE (MODE 0)........................................................................................................................................................... 11

6.3 WAKE-UP MODE (MODE 1).......................................................................................................................................................... 11

6.4 POWER-SAVING MODE (MODE 2) ............................................................................................................................................... 11

6.5 SLEEP MODE (MODE 3) ................................................................................................................................................................ 12

7 COMMAND FORMAT ................................................................................................................. 12

7.1 DEFAULT PARAMETERS................................................................................................................................................................ 12

7.2 READING OP ERATING PARAMETERS........................................................................................................................................... 13

7.3 READING VERSION NUMBER ....................................................................................................................................................... 13

7.4 RESET COMMAND......................................................................................................................................................................... 13

7.5 PARAMETER SETTING COMMAND .............................................................................................................................................. 13

8. HARDWARE DESIGN ................................................................................................................ 15

9 FAQ ................................................................................................................................................. 16

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9.1 COMMUNICATION RANGE IS TOO SHORT ................................................................................................................................... 16

9.2 MODULE IS EASY TO DAMAGE.................................................................................................................................................... 17

9.3 BER(BIT ERROR RAT E) IS HIGH................................................................................................................................................. 17

10 PRODUCTION GUIDANCE ..................................................................................................... 17

11 E32 SERIES.................................................................................................................................. 17

12 ANTENNA RECOMMENDATION ........................................................................................... 18

13 PACKAGE FOR BATCH ORDER ............................................................................................ 19

REVISION HISTORY...................................................................................................................... 20

ABOUT US ........................................................................................................................................ 20

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual

1. Overview

1.1 Introduction

E32-433T20DC is a wireless serial port module

(UART) based on SEMTECH's SX1278 RF chip. It has

multiple trans mission modes, working in the

410MHz~441MHz, (defau lt 433MHz), LoRa s pread

spectrum technology,

SX1278 features LoRa™, which will bring longer

communicat ion distance, and has the advantages of concentrated power dens ity, meanwh ile it has a very strong

confidentiality. the modules of 20dBm transmitting power adopt industrial grade crys ta l oscillators to ensure the stability

and consistency, its precision is lower than the widely adopted 10ppm. E32-433T20DC is in stable bulk production and

are widely applied in utility meters, IoT renovation, smart home, etc. The modules feature data encry ption and

compression. The data transmitted over the air features randomness. The encryption-decryption algorithm makes data

interception meaningless. Data compression enables shorter transmitting time and lower rate of being interfered, which

increases the reliability and trans mitting efficiency.

E32-433T20DC strictly fo llows design standards of FCC, CE, CCC and meets various RF certification

requirements for exporting.

1.2 Features

 Communication distance tested is up to 3km  Maximum transmission power of 100mW, software multi-level adjustable；  Support the global license-free ISM 433 MHz band；  Support air date rate of 0.3kbps ～19.2kbps；  Support new generation LoRa technology bas ed on SX1262；  Low power consumption for battery supplied applications ；  Support 3.3V~5.5V power supply, power supply over 5.0 V can guarantee the bes t performance ；  Indus trial grade standard des ign, s upport -40 ~ 85 °C for working over a long time；  IPEX and stamp hole optional, good for secondary development and integration.

1.3 Application

 Home s ecurity alarm and remote keyless entry；  Smart home and industrial sensors ；  Wireless alarm security sys tem；  Building automation solutions ；  Wireless indus trial-grade remote control；  Health care products；  Advanced Meter Reading Architecture(AMI)；  Automotive industry applications.

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2. Specification and parameter

2.1 Limit parameter

Main parameter

Performance

Remark

Min.

Max.

Power sup p ly （V）

0

5.2

Voltage over 5.2V will cause p ermanent damage to module

Blocking power（dBm）

-

-10

Chances of burn is slim when modules are used in short distance

Operating temperature（℃）

-40

85

-

2.2 Operating parameter

Main parameter

Performance

Remark

Min

Typ.

Max.

Operating voltage（V）

3.3

5.0

5.2

≥5.0 V ensures output power

Communication level（V）

-

3.3

-

For 5V TTL, it may be at risk of

burning down

Operating temperature（℃）

-40 - 85

Industrial design

Operating frequency（MHz）

410 - 525

Support ISM band

Power

consumptio

n

Transmitting current [mA]

-

106

Instant power

consumption

Instant power consumption

Receiving current [mA]

-

15

-

Turn-off current [μA]

- 4 -

Software is shut down

Max Tx power（dBm）

19.0 - 20.0

-

Receiving sens itivity（dBm）

-144

-146

-147

Air data rate is 2.4kbps

Air data rate（bps）

0.3k

2.4k

19.2k

Controlled via user’s p rogramming

Main parameter

Description

Remark

Distance for reference

3000m

Test condition：clear and open area, antenna gain: 5dBi， antenna height: 2.5m，air data rate: 2.4kbps

TX length

58 Byte

Maximum capacity of single package

Buffer

512 Byte

-

Modulation

LoRa™

-

Communication interface

TTL

@3.3V

Package

DIP

-

Connector

2.54mm

-

Size

21 * 36mm

-

Antenna

SMA-K

50 ohm impedance

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3 Size and pin definition

No.

Name

Direction

Function

1

M0

Input

（weak pull-up）

Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded).

2

M1

Input

（weak pull-up）

Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded).

3

RXD

Input

TTL UART inputs, connects to external (M CU, PC) TXD output pin. Can be configured as op en-drain or pull-up input .

4

TXD

Output

TTL UART outputs, connects to external RXD (MCU, PC) input

pin. Can be configured as open-drain or push-pull output

5

AUX

Output

To indicate module 's working status & wakes up the external

MCU. During the procedure of self-check initialization, the pin

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outputs low level. Can be configured as push-pull output (suspending is allowed).

6

VCC

Input

Power supply ：2.3~ 5.2V DC

7

GND

Input

Ground

8

Fixed orifice

-

Fixed orifice

9

Fixed orifice

-

Fixed orifice

10

Fixed orifice

-

Fixed orifice

4 Connect to MCU

No.

Description（STM8L MCU）

1

The UART module is TTL level.

2

For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.

5 Function description

5.1 Fixed transmission

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5.2 Broadcasting transmission

5.3 Broadcasting address

 For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;  When module is the trans mitter (trans parent trans miss ion), all modules under channel 0x04 will receive the data, the

purpos e of broadcast is realized.

5.4 Monitor address

 For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;  When module A is the receive r, it can receive the data sent from all modules under channel 0x04, the purpose of

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monitor is realized.

5.5 Reset

 When the module is powered, AUX outputs low level immediately, conducts hardware self-check and sets the

operating mode based on us er’s parameters. During the process, the AUX remains low level. After the proces s

completed, the AUX outputs high level and s tarts to work as per the operating mode combined by M1 and M0.

Therefore, us ers need to wait the AUX rising edge as the start of module’s normal work.

5.6 AUX description

 AUX Pin can be used as indication for wireless send & receive buffer and self-check.  It can indicate whether there are data that are not sent yet via wireless way, or whether a ll wireless data has been

sent through UART, or whether the module is still in the process of s elf-check initialization.

5.6.1 Indication of UART output

 To wake up external M CU

5.6.2 Indication of wireless transmitting

 Buffer (empty): the internal 512 bytes data in the buffer are written to the RFIC (Auto sub-packaging).  When AUX=1, the user can input data less than 512 bytes continuously without overflow. Buffer (not empty): when

AUX=0, the internal 512 bytes data in the buffer have not been written to the RFIC co mpletely. If the user starts to

trans mit data at this circumstance, it may cause overtime when the module is waiting for the us er data, or

trans mitting wireless s ub package.

 When AUX = 1, it does not mean that all the UART data of the module have been tra nsmitted already, perhaps the

last packet of data is still in transmission.

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5.6.3 Configuration procedure of module

 Only happened when power-on resetting or exiting sleep mode

5.6.4 Notes for AUX

No.

Description

1

For function 1 & function 2 mentioned above, the priority should be given to the one with low level outp ut, which means if it

meets each of any low level output condition, AUX outputs low level, if none of t he low level condition is met, AUX outputs high level.

2

When AUX outputs low level, it means the module is busy & cannot conduct op erating mode checking. Within 1ms since AUX outp uts high level, the mode switch will be completed.

3

After switching to new op erating mode, it will not work in the new mode immediately until AUX rising edg e lasts for 2ms . If AUX stays on the high level, the operating mode switch can be affected immediately.

4

When the user switches to other operating modes from mode 3 (sleep mode) or it’s st ill in reset p rocess, the module will reset user parameters, during which AUX outp uts low level.

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6 Operating mode

There are four operating modes, which are set by M1 and M0, the details are as follows:

Mode（0-3）

M0

M1

Mode introduction

Remark

0 Normal

0

1

UART and wireless channel are open, transparent trans miss ion is on

The receiver must work in mode 0 or mode 1

1Wake up

1

0

UART and wireless channel are open, the only difference with mode 0 is that before transmitting data, increasing the wake up code automatically, so that it can awake the receiver under mode 3.

The receiver could be 0,1 or 2 2 Power

saving

0 1 UART close, wireless is under air-awaken mode, after

receiving data, UART open and send data.

transmitter must be mode 1, unable to transmit in this mode.

3Sleep

1

sleep mode, receiving parameter setting command is available.

more details on parameter specification.

6.1 Mode switch

 The us er can decide the operating mode by the co mb ination of M1 and M0. The two GPIO of MCU can be used to

switch mode. After modifying M1 or M0, it will start to work in new mode 1ms later if the module is free. If there

are any s erial data that are yet to finish wire less transmitting, it will start to work in new mode after the UART

trans mitting finished. After the module receives the wireless data & t rans mits the data through serial port, it will

start to work in new mode after the transmitting finished. Therefore, the mode -switch is only valid when AUX outputs 1, otherwis e it will delay.

 For example, in mode 0 or mode 1, if the user inputs mass ive data consecutively and switch es operating mode at the

same time, the mode-switch operation is invalid. New mode checking can only be s tarted after all the us er’s data

process completed. It is recommended to check AUX p in out status and wait 2ms after A UX outputs high level

before switching the mode.

 If the module switches from other modes to stand -by mode, it will work in stand-by mode only after all the

remained data proces s completed. The feature can be used to save power consumption. For example, when the

trans mitter works in mode 0, after the e xternal M CU trans mits data “12345”, it can s witch to sleep mode

immediately without waiting the rising edge of the AUX pin, also the user’s main MCU will go dormancy

immediately. Then the module will trans mit all the data through wireless tran smission & go dormancy 1ms later

automatically, which reduces MCU working time & save power.

 Likewise, this feature can be us ed in any mode-switch. The module will start to work in new mode within 1ms after

completing present mode task, which enables the us er to omit the procedure of AUX inquiry and switch mode

swiftly. For exa mp le, when switching from trans mitting mode to receiving mode, the user MCU can go dormancy

before mode-switch, using external interrupt function to get AUX change so that the mode -switch can be realized.

 This operation is very flexible and efficient. It is totally des igned on the basis of the user MCU’s convenience, at the

same time the work load and power cons umption of the whole system have been reduced and the efficiency of

whole system is largely improved.

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6.2 Normal mode (mode 0)

When M1 = 0 & M0 = 0, module works in mode 0

Transmitting

The module can receive the user data via serial p ort, and transmit wireless data package of 58 byt es. When t he data inputted by user is up to 58 byte, the module will st art wireless transmission. During which the user can input data continuously for transmission. When the required transmission bytes are less t han 58 bytes, t he module will wait 3 -by te time and treat it as data termination unless continuous data input ted by user. T hen the module will transmit all the data through wireless channel. When the module receives the first data packet from user, the AUX outp uts low level. After all the data are transmitted into RF chip and transmission start , AUX outp uts high level. At this time, it means t hat t he last wireless data package t ransmission is started, which enables the user to inp ut another 512 bytes continuously. The data package transmitted from the module working in mode 0 can only be received by the module working in mode 0 or 1.

Receiving

The wireless receiving function of the module is on, the data p acket transmitted from the module working in mode 0 & mode 1 can be received. After the data packet is received, t he AUX outp uts low level, 5ms later t he module starts t o transmit wireless data through serial p ort TXD pin. After all the wireless data have been transmitted via serial p ort, the AUX outputs high level.

6.3 Wake-up mode (mode 1)

When M1 = 0 & M0 = 1, module works in mode 1

Transmitting

The condition of data packet transmission & AUX function is the same as mode 0. The only difference is that the module will add preamble code before each data packet automatically. The p reamble code length depends on the wake-up time set in the user p arameters. T he purpose of the p reamble code is waking up t he receiving module works in mode 2. Therefore, the data p ackage transmitt ed from mode 1 can be received by mode 0, mode1 and mode 2.

Receiving

The same as that in mode 0.

6.4 Power-saving mode (mode 2)

When M1 = 1 & M0 = 0, module works in mode 2

Transmitting

UART is closed, the module cannot receive any serial p ort data from outside M CU. Hence the function of wireless transmission is not available for the module working in t his mode.

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Receiving

In mode 2, it is required the data transmitter works in mode 1. The wireless module monitors the p reamble code at regular time. Once it gets the preamble code, it will remain as receiving status and waiting for the completion of receiving the entire valid data package. Then the AUX outputs low level, 5ms later the serial p ort is open to transmit received wireless data through TXD. Finally, AUX outputs high level after process completed. The wireless module stays in “ p ower-saving – monitoring” working status (polling). By setting different wake-up time, the module will have different receiving response delay (2s in maximum) and average p ower consumption (30uA in minimum). The user needs to achieve a balance between communication delay time & average power consumption.

6.5 Sleep mode (mode 3)

When M1=1, M0=1, module works in mode 3

Transmitting

N/A

Receiving

N/A

Parameter

setting

This mode can be used for parameter setting. It uses serial p ort 9600 & 8N1 to set module working p arameters through specific instruction format. (pls refer to parameters sett ing for det ails)

Notes

When the mode changes from stand-by mode to others, t he module will reset its p arameters, during which the AUX keeps low level and t hen outp uts high level after reset completed. It is recommended t o check the AUX rising edge for user.

7 Command format

In sleep mode（Mode 3：M1=1, M0=1）, it s upports below instructions on list.

(Only support 9600 and 8N1 format when setting)

No.

Instruction

format

Illustration

1

C0+working

parameters

C0 + 5 bytes working p arameters are sent in hexadecimal format. 6 bytes in total and must be sent in succession, ( Save the p arameters when power-down ).

2

C1+C1+C1

( Save the parameters when power-down )

3

C2+working

parameters

Three C1 are sent in hexadecimal format. The module returns the saved p arameters and must be sent in succession.

4

C3+C3+C3

C2 + 5 bytes working p arameters are sent in hexadecimal format. 6 bytes in total and must be sent in succession. ( Do not save the p arameters when power-down )

5

C4+C4+C4

Three C3 are sent in hexadecimal format. The module returns the version information and they must be sent in succession.

7.1 Default parameters

Default parameter values：： C0 00 00 1A 17 44

Model

Frequency

Address

Channel

Air data rate

Baud rate

Parity

Transmitting

power

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E32-433T20DC

433MHz

0x0000

0x17

2.4kbps

9600

8N1

100mW

7.2 Reading operating parameters

Instruction format

Description

C1+C1+C1

In sleep mode（M0=1，M 1=1）， User gives the module instruction (HEX format): C1 C1 C1, Module returns the p resent configuration parameters. For example, C2 00 00 1A 17 44.

7.3 Reading version number

Instruction format

Description

C3+C3+C3

In sleep mode（M0=1，M 1=1）, User gives the module instruction (HEX format): C3 C3 C3, Module returns its present version number, for example C3 32 xx yy. 32 here means the module model (E32 series); xx is the version number and yy refers to the other module features.

7.4 Reset command

Instruction format

Description

C4+C4+C4

In sleep mode（M0=1，M 1=1）, User gives the module instruction (HEX format): C4 C4 C4, the module resets for one t ime. During the reset p rocess, the module will conduct self-check, AUX outputs low level. After reset completing, the AUX outputs high level, then t he module starts t o work regularly which the working mode can be switched or be given another instruction.

7.5 Parameter setting command

No.

Item

Description

Remark

0

HEAD

Fix 0xC0 or 0xC2, it means this frame data is control command

 Must be 0xC0 or 0xC2

C0: Save the parameters when power-down

C2: Do not save t he parameters when power-down

1

ADDH

High address byte of module

（the default 00H）

00H-FFH

2

ADDL

Low address byte of module

（the default 00H）

00H-FFH

3

SPED

7

6

UART parity bit

 UART mode can be different between

communication p arties

0

8N1 (default)

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0

1

8O1

1

0

8 E1

1

8N1 (equal to 00)

5 4 3

TT L UART baud rate（bps）

 UART baud rate can be different

between communication parties

 The UART baud rate has nothing to do

with wireless transmission parameters

& won’t affect the wireless transmit / receive features.

0 0 0

1200

0 0 1

2400

0 1 0

4800

0 1 1

9600 (default)

1 0 0

19200

1 0 1

38400

1 1 0

57600

1 1 1

115200

2 1 0

Air dat a rat e（bps）

 The lower the air data rate, the longer

the transmitt ing distance, better anti-interference performance and longer transmitting time

 The air data rate must keep t he same

for bot h communication p arties.

0 0 0

0.3k

0 0 1

1.2k

0 1 0

2.4k (default)

0 1 1

4.8k

1 0 0

9.6k

1 0 1

19.2k

1 1 0

19.2k (same to 101)

1 1 1

19.2k (same to 101)

General Specifications

Except for E32 (400T20S)

4

CHAN

7 6 5

reserved

Write 0

Communication channel

00H-1FH, correspon d to 410~441MHz

4-0 , channel (410M + CHAN*1M), default 17H（433MHz）

5

OPTION

7

Fixed t ransmission enabling bit （similar to MODBUS）

 In fixed transmission mode, t he first

three bytes of each user's data frame

can be used as high/low address and

channel. The module changes its

address and channel when t ransmit.

And it will revert to original setting aft er complete the p rocess.

0

T ransparent transmission mode

1

Fixed transmission mode

6

IO drive mode (default 1)

 This bit is used to the module intern al

pull-up resist or. It also in creases th e

level’s adaptabilit y in case of open

drain. But in some cases, it may need ext ernal p ull-up resistor.

1

T XD and AUX push-pull outputs, RXD pull-up inputs

0

T XD、AUX open-collector outputs, RXD open-collector inputs

5 4 3

wireless wake-up time

 The t ransmit & receive module work in

mode 0 , whose delay t ime is invalid & can be arbitrary value.

 The t ransmitt er works in mode 1 can

0 0 0

250ms (default)

0 0 1

500ms

0 1 0

750ms

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0 1 1

1000ms

transmit the preamble code of the corresponding time continuously.

 When t he receiver works in mode 2,

the time means the monit or interv al time (wireless wake-up). Only the dat a

from transmitter t hat works in mode 1 can be received.

1 0 0

1250ms

1 0 1

1500ms

1 1 0

1750ms

1 1 1

2000ms

2

FEC switch

 After t urn off FEC, the actual data

transmission rat e increases while anti-interference ability decreases. Also

the transmission distance is relatively short.

 Both communicat ion parties must

keep on the same pages about turn-on or turn-off FEC. 0 T urn off FEC

1

T urn on FEC (default)

1 0 Transmission power (approximation)

T he external power must make sure the

ability of current output more than 250mA

and ensure th e power supply ripple within 100mV.

Low power transmission is not

recommended due to its low power supply efficien cy.

0

20dBm (default)

0

1

17dBm

1

0

14dBm

1

10dBm

For example: The meaning of No.3 "S PED" byte:

T he binary bit of the byte

7 6 5 4 3 2 1

0

Configures by user

0 0 0 1 1 0 1

0

Meaning

UART parity bit 8N1

UART baud rate is 9600

Air data rate is 2.4 k

Corresponding h exadecimal

1

A

8. Hardware design

 It is reco mmended to use a DC s tabilized power supply. The power supply ripple factor is as s mall as possible, and

the module needs to be reliably grounded.；

 Please pay attention to the correct connection of the positive and negative poles of the power supply. Reverse

connection may caus e permanent damage to the module；

 Please check the power supply to ensure it is within the recommended voltage othe rwise when it exceeds the

maximum value the module will be permanently damaged；

 Please check the stability of the power supply, the voltage cannot be fluctuated frequently；  When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the

margin, s o the whole machine is beneficial for long -term stable operation.；

 The module should be as far away as pos s ible from the power supply, transformers, high -frequency wiring and other

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parts with large electromagnetic interference.；

 High-frequency digital routing, high-frequency analog routing, and power routing must be avoided under the

module. If it is necessary to pass through the module, assume that the module is s oldered to the Top Layer, and the

copper is spread on the Top Layer of the module contact part(well grounded), it must be close to the digital part of

the module and routed in the Bottom Layer；

 Assuming the module is soldered or placed over the Top Laye r, it is wrong to randomly route over the Bottom Layer

or other layers, which will affect the module's s purs and receiving sensitivity to varying degrees ；

 It is assumed that there are devices with large electro magnetic interference around the module that will greatly

affect the performance. It is reco mmended to keep them away from the module according to the strength of the

interference. If neces sary, appropriate isolation and s hielding can be done；

 Assume that there are traces with large electro magnetic interference (high -frequency digital, h igh -frequency analog,

power traces) around the module that will great ly affect the performance of the module. It is recommended to stay

away from the module according to the strength of the interference. If necessary, appropriate isolation and shielding

can be done.

 If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is

still a risk of damage)；

 Try to stay away from s ome physical layers such as TTL protocol at 2.4GHz , for example: USB3.0；  The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure

that the antenna is exposed, preferably vertically upward. When the module is mounted ins ide the case, us e a good

antenna extension cable to extend the antenna to the outs ide；

 The antenna must not be installed inside the metal case, which will cause the transmis s ion distance to be greatly

weakened.

9 FAQ

9.1 Communication range is too short

 The communication distance will be affected when obstacle exis ts.  Data lose rate will be affected by temperature, humidity and co -channel interference.  The ground will absorb and reflect wireless radio wave, so the performance will be poor when tes ting near ground.  Sea water has great ability in absorbing wireless radio wave, so performance will be poor when tes ting near the sea.  The signal will be affected when the antenna is near metal object or put in a metal case.  Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the

distance).

 The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the

trans mitting power.

 Due to antenna quality or poor matching between antenna and module.

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual

9.2 Module is easy to damage

 Please check the power supply source, ensure it is 2.0V~3.6V, voltage higher than 3.6V will damage the module.  Please check the stability of power source, the voltage cannot fluctuate too much.  Please make sure antistatic meas ure are taken when ins talling and using, high frequency devices have electrostatic

susceptibility.

 Please ensure the humidity is within limited range, some parts are sensitive to humidity.  Please avoid us ing modules under too high or too low temperature.

9.3 BER(Bit Error Rate) is high

 There are co-channel signal interference nearby, please be away from interference sources or modify frequency and

channel to avoid interference;

 Poor power supply may cause messy code. Make s ure that the power supply is reliable.  The extension line and feeder quality are poor or too long, so the bit error rate is high;

10 Production guidance

This type is full-s ized module, when the welder welds the module, he mus t be welding according to the anti-static

regulation. This product is allergic to s tatic, randomly welding the module will have the chance of damaging it

permanently.

11 E32 series

Model No.

Core IC

Frequency

Hz

Tx power

dBm

Distance

km

Data Rate

Package

Size

mm

Interface

E32-868T20S

SX1276

868M

20

3

0.3k~19.2k

SMD

16 * 26

UART

E32-915T20S

SX1276

915M

20

3

0.3k~19.2k

SMD

16 * 26

UART

E32-400T20S

SX1278

433M 470M

20

3

0.3k~19.2k

SMD

16 * 26

UART

E32-915T30S

SX1276

915M

30

8

0.3k~19.2k

SMD

25 * 40.3

UART

E32-868T30S

SX1276

868M

30

8

0.3k~19.2k

SMD

25 * 40.3

UART

E32-433T30S

SX1278

433M

30

8

0.3k~19.2k

SMD

25 * 40.3

UART

E32-433T20S2T

SX1278

433M

20

3

0.3k~19.2k

SMD

17 * 30

UART

E32-868T30D

SX1276

868M

30

8

0.3~19.2k

DIP

24 * 43

SMA-K

E32-915T30D

SX1276

915M

30

8

0.3~19.2k

DIP

24 * 43

SMA-K

E32-170T30D

SX1278

170M

30

8

0.3k~9.6k

DIP

24 * 43

SMA-K

E32-868T20D

SX1276

868M

20

3

0.3~19.2k

DIP

21 * 36

SMA-K

E32-915T20D

SX1276

915M

20

3

0.3~19.2k

DIP

21 * 36

SMA-K

E32- 433T20DC

SX1278

433M

20

3

0.3k~19.2k

DIP

21 * 36

SMA-K

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual

E32- 433T30D

SX1278

433M

30

8

0.3k~19.2k

DIP

24 * 43

SMA-K

E32-433T27D

SX1278

433M

27

5

0.3k~19.2k

DIP

24 * 43

SMA-K

E32-433T20S1

SX1278

433M

20

3

0.3k~19.2k

SND

17 * 25.5

SMA-K

12 Antenna recommendation

The antenna is an important role in the co mmunication proces s . A good antenna can largely improve the

communicat ion s ystem. Therefore , we recommend some antennas for wireless modules with e xcellent performance and

reasonable price.

Model No.

Type

Frequency

Hz

Interface

Gain

dBi

Height

Cable

Function feature

TX433-NP-4310

Soft PCB antenna

433M

SMA-J

2

43.8*9.5mm

-

Soft inside，FPC soft

antenna

TX433-JW-5

Rubber antenna

433M

SMA-J

2

50mm

-

Flexible

&omnidirectional

TX433-JWG-7

Rubber antenna

433M

SMA-J

2.5

75mm

-

Flexible

&omnidirectional

TX433-JK-20

Rubber antenna

433M

SMA-J

3

210mm

-

Flexible

&omnidirectional

TX433-JK-11

Rubber antenna

433M

SMA-J

2.5

110mm

-

Flexible

&omnidirectional

TX433-XP-200

Sucker antenna

433M

SMA-J 4 19cm

200cm

Sucker antenna, High

gain

TX433-XP-100

Sucker antenna

433M

SMA-J

3.5

18.5cm

100cm

Sucker antenna, High

gain

TX433-XPH-300

Sucker antenna

433M

SMA-J

6

96.5cm

300cm

Car Sucker antenna,

High gain

TX433-JZG-6

Rubber antenna

433M

SMA-J

2.5

52mm

-

Short straight

&omnidirectional

TX433-JZ-5

Rubber antenna

433M

SMA-J

2

52mm

-

Short straight

&omnidirectional

TX490-XPL-100

Sucker antenna

490M

SMA-J

3.5

12cm

100cm

Sucker antenna, High

gain

TX490-JZ-5

Rubber antenna

490M

SMA-J

2

50mm

-

Short straight

&omnidirectional

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual

13 Package for batch order

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual

Revision history

Version

Date

Description

Iss ued by

1.00

2017-11-10

Initial version

huaa

1.10

2018-01-11

Updating E32 (868T30S)/E32 (915T30S)

huaa

1.20

2018-01-15

Updating E32 (868T20S)/E32 (915T20S)/ E32 (400T20S)

huaa

1.30

2018-01-22

Updating E32 (868T20D)/ E32 (868T30D)

E32 (915T20D)/ E32 (915T30D)/ E32 (170T30D)

huaa

1.40

2018-05-24

Updating antenna option

huaa

1.50

2018-10-11

Manual dividing

huaa

About us

Technical support: supp ort@cdebyte.com Documents and RF Setting download link: www.ebyt e.com Thank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com

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Ebyte E32-868T20S, E32-868T30S, E32-915T30S, E32-400T20S, E32-433T30S User Manual

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