Ebyte E30-490T20S User Manual

E30-490T20S User Manual

SI4438 490MHz 100mW SMD Wireless Module

Chengdu Ebyte Electronic Technology Co,;Ltd E30-490T20S user manual

CONTENT

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

1.1 INTRODUCT ION ................................................................................................................................................................................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 ..........................................................................................................7

5.1 FIXED TRANSMISSION.....................................................................................................................................................................7

5.2 BROADCASTING 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................................................................................................................................................................ 13

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

Chengdu Ebyte Electronic Technology Co,;Ltd E30-490T20S user manual

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

10.1 REFLOW SOLDERING TEMPERATURE ....................................................................................................................................... 17

10.2 REFLOW SOLDERING CURVE..................................................................................................................................................... 18

11.E30 SERIES .................................................................................................................................. 18

12 ANTENNA RECOMMENDATION ........................................................................................... 19

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

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

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

Chengdu Ebyte Electronic Technology Co,;Ltd E30-490T20S user manual

1.Overview

1.1 introduction

E30-490T20S is based on originally imported SI4438 from

Silicon Labs, with transparent transmission available, TTL level

output with air wake-up function, WOR (ultra-low power

consumption). They feature half duplex and SMD interface. 490M

frequency, long wave length and strong ability of penetration and

diffraction. They are applicable in the indus trial and living

environment like a plant or indoors.

The module features FEC (Forward Error Correction )

algorithm, which ensure its high coding efficiency & good correction

performance. In the cas e of sudden interference, it can correct the interfered data packets proactively, so that the re liabilit y

& transmis s ion range are improved correspondingly. But without FEC, thos e data packets can only be dropped.

E30-490T20S strictly follows design standards of FCC, CE, CCC and meets various RF certification requirements

for exporting.

1.2 Features

 Communication distance tested is up to 2.5km  Maximum transmission power of 100mW, software multi-level adjustable；  Support the global license-free ISM 490MHz band；  Support air date rate of 1kbps ～25kbps ；  Low power consumption for battery supplied applications；  Support 2.3V~5.2V power supply, power supply over 2.3V can guarantee the best performance ；  Industrial grade s tandard design, support -40 ~ 85 °C for working over a long time；  Support IPEX/External/Spring，us ers can choose to use according to their own needs.

1.3 Application

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

Chengdu Ebyte Electronic Technology Co,;Ltd E30-490T20S user manual

2 Specification and parameter

2.1 Limit parameter

Main parameter

Performance

Notes

Min.

Max.

Power sup p ly （V）

5.2

Voltage over 5.2V will cause p ermanent

damage to module

Blocking p ower（dBm）

Chances of burn is slim when modules

are used in short distance

Operating temperature（℃）

-40

2.2 Operating parameter

Main parameter

Performance

Notes

Min

Typ.

Max.

Operating voltage（V）

2.3

3.3

5.2

≥3.3V ensures outp ut 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（M Hz ）

470 - 500.5

Support ISM band

Power

consumption

Transmitting current [mA]

89 Instant power consumption

Receiving current [mA]

Turn-off current [μA]

Software is shut down

Max Tx power（dBm）

19.4

20.0

20.5

Receiving sensitivity（dBm）

-120

-121

-122

Air data rate is 1.0kbps

Air data rate（bps）

25k

Controlled via user’s programming

Main parameter

Description

Notes

Distance for reference

2500m

Test condition：clear and open area, antenna gain: 5dBi， antenna height: 2.5m，air data rate: 1.0kbps

TX length

58 Byte

Maximum capacity of single package, automatic subpacking after exceeding.

Buffer

512 Byte

Modulation

GFSK

Communication interface

TTL

@3.3V

Package

SMD

Connector

2.00mm

Chengdu Ebyte Electronic Technology Co,;Ltd E30-490T20S user manual

Size

17 * 30 mm

Antenna

IPEX/External/Spring

50 ohm impedance

3 Size and pin definition.

No.

Name

Direction

Function

Input

（Weak pull-up）

Work with M 1 to decide 4 working modes of module (not susp ended, if not used, could be grounded).

Input

（weak pull-up）

Work with M 0 to decide 4 working modes of module (not susp ended, if not used, could be grounded).

RXD

Input

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

Chengdu Ebyte Electronic Technology Co,;Ltd E30-490T20S user manual

TXD

Output

TTL UART output s, connects to external RXD (MCU, PC) inp ut pin. Can be configured as op en-drain or push-pull out p ut

AUX

Output

To indicate module ’ s working status & wakes up the external M CU.

During the procedure of self-check initialization, the pin outp ut s low level. Can be configured as push-p ull outp ut (suspending is allowed).

VCC

Input

Power sup p ly ：2.3~ 5.5V DC

GND

Input

Ground

ANT

Input

Antenna interface (high frequency signal outp ut )

Fixed orifice

4 Connect to MCU

No.

Description（STM8L MCU）

The UART module is TTL level.

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

+ 14 hidden pages

Ebyte E30-490T20S User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual