Ebyte E73-2GM08S1C User Manual
E73-2G4M08S1C User Manual
nRF52840 2.4GHz SMD Wireless Module
Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M08S1C User Manual
Contents
1 Product overview
1.1 Brief Introduction
1.2 Features
1.3 Application
2 Specification and parameter
2.1 Limit parameter
2.2 Operating parameter
3 Size and pin definition
4 Development and Application
5 Basic operation
5.1 Hardware design
......................................................................................................................................................................................
6 FAQ
6.1 Communication range is too short
6.2Module is easy to damage
6.3 BER(Bit Error Rate) is high
7 Production guidance
7.1 Reflow soldering temperature
7.2 Reflow soldering curve
8 E73 series
9 Antenna recommendation
9.1 Recommendation
Revision history
About us
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Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M08S1C User Manual
1.1 Brief Introduction
E73-2G4M08S1C are wireless Bluetooth modules designed by
Chengdu Ebyte which feature small size, low power consumption. It
adopt the originally imported RFIC nRF52840 of NORDIC,
supporting BLE 4.2 and BLE 5.0. The chip has high-performance
ARM CORTEX-M4F kernel and other peripheral resources, such as
UART, I2C, SPI, ADC, DMA, PWM etc. The module led out most
1 Product overview
IO Port of nRF52840 for multilateral development.Please see the pin definition for details.
E73-2G4M08S1C is hardware platform without firmware, so users need to conduct a secondary development.The
characteristics of the nRF52840 chip can be found in the official Datasheet.
1.2 Features
Small size: 13x18mm;
Support BLE4.2 and BLE 5.0;
The measured communication distance is up to 120m;
Maximum transmission power of 6mW, software multi-level adjustable;
Support the global license-free ISM 2.4GHz band;
Built-in high performance low power ARM® and Cortex ® -M4 dual core processor;
Rich resources, 1024KB FLASH, 256KB RAM;
Support 1.7V~5.5Vpower supply, power supply over 3.3Vcan guarantee the best performance;
Industrial grade standard design, support -40 ~ 85 °C for working over a long time;
Built-in ceramic antenna, no antenna is required for the built-in antenna.
1.3 Application
Smart homes and industrial sensors；
Security system, positioning system；
Wireless remote control, drone；
Wireless game remote control；
Health care products；
Wireless voice, wireless headset；
Automotive industry applications.
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M08S1C User Manual
Main parameter
Performance
Remark
Min
Max
Power supply （V）
0
5.5
Voltage over 5.5V will cause permanent
damage to module
Blocking power（dBm）
-
10
Chances of burn is slim when modules
are used in short distance
Operating temperature（℃）
-40
85
Main parameter
Performance
Remark
Min
Type
Max
Operating voltage（V）
1.7
3.3
5.5
≥3.3 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 grade
Operating frequency（GHz）
2360-2500
Support ISM band
Transmitting current
TX only run current
(DC/DC, 3 V) PRF =
+8 dBm
-
17.05
-
mA
TX only run current
(DC/DC, 3 V) PRF =
+4 dBm
-
12.68
-
mA
TX only run current
(DC/DC, 5 V, REG0
out = 3.3 V)PRF =
0dBm
-
7.25
-
mA
TX only run current
(DC/DC, 3 V)P RF =
0 dBm
-
7.63
-
mA
2 Specification and parameter
2.1 Limit parameter
2.2 Operating parameter
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M08S1C User Manual
TX only run current
(DC/DC, 3 V) PRF =
+8 dBm
-
17.05
-
mA
Receiving current
RX only run current
(DC/DC, 3 V) 1
Mbps / 1 Mbps BLE
-
7.71
-
mA
RX only run current
(DC/DC, 3 V) 2
Mbps / 2 Mbps BLE
-
8.27
-
mA
Transmitting power
789
dBm
Receiving sensitivity
-103 dBm@BLE 125kbps(long distance mode), -95 dBm@BLE 1M
Main parameter
Description
Remark
Reference distance
120m
Clear and open area, antenna gain: 5dBi, antenna height:
2.5m，air data rate: 1Mbps
Crystal Oscillator
32MHz
Protocol
BLE 4.2/5.0
Package
SMD
Interface
1.27mm
Stamp hole/Ceramic antenna
IC
nRF52840-QIAAC0/ aQFN ™ 73
FLASH
1024KB
RAM
256KB
Core
ARM® Cortex ® -M4
Size
13.0 * 18.0 mm
Antenna
ceramic antenna
50 ohm impedance
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co., Ltd
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