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Chengdu Ebyte Electronic Technology Co.,Ltd

E31-400M17S User Manual

Copyright ©2012–2019

Chengdu Ebyte Electronic Technology Co.,Ltd

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1.Overview

1.1 Introduction

Designed by Ebyte, E31-400M17S is a micro-size(pin pitch:1.27mm) long range RF transceiving

module with 400MHz central frequency(Range:425-450.5MHz); Based on AXSEM's AX5243 RF chip

a narrow-band multi-channel single-chip, the module has multiple modulation methods such as FSK /

MSK / 4-FSK / GFSK.The module antenna interface is IPEX stamp hole. The Module uses a 26MHz

±

1ppm industrial grade high precision low temperature drift active crystal oscillator to ensure the accuracy of wireless frequency,

industrial performance and its stability.

The module is a pure RF transceiving hardware which requires MCU drivers or special SPI tool to configure before being put in

work.

1.2 Main Features:

The measured actual communication distance can reach 2km;

The maximum transmission power is 17dBm (50mW);

Broadband design 400MHz-525MHz, supporting the global license-free ISM 433MHz band;

High receiving sensitivity and high receiving selectivity;

Optional FEC, and automatic channel noise level tracking;

Support multiple modulation modes (FSK / MSK / 4-FSK / GFSK / GMSK / ASK / AFSK / FM / PSK);

Support wireless wake-up;

Support DC 1.8 ~ 3.6V power supply, DC 3.3V-3.6V can guarantee the best performance;

Industrial grade standard design, support long-term use from -40 to +85 °C;

Small size design for easy integration;

Dual antenna interface design (IPX/stamp hole) for easy secondary development and easy integration.

1.3 Applications

Smart home and industrial sensors;

Wireless meter reading (AMR);

Building automation;

Wireless network;

Wireless remote control, drone;

Health care products;

Wireless audio, wireless headset;

Compatible with: Wireless M-Bus, POCSAG, FLEX, KNX, Sigfox, Z-Wave, enocean;

Summary of Contents for E31-400M17S

Page 1: ...Chengdu Ebyte Electronic Technology Co Ltd E31 400M17S User Manual 1 E31 400M17S...

Page 2: ...s Definition 5 4 User Guide 6 4 1 Notice for Hardware 6 4 2 Programming 7 5 Electronic Diagram 7 5 1 Circuit Diagram 7 6 FAQ 8 6 1 Communication range is too short 8 6 2 Module is easy to damage 8 6 3...

Page 3: ...before being put in work 1 2 Main Features The measured actual communication distance can reach 2km The maximum transmission power is 17dBm 50mW Broadband design 400MHz 525MHz supporting the global l...

Page 4: ...cal Max Working Voltage V 1 8 3 3 3 6 DC 3 3V 3 6V can guaranty Max TX power Tx Electrical Level V 3 3 5V TTL could cause permanent damage Working Temp 40 25 85 Industrial Grade Working Frequency Chan...

Page 5: ...in 5dBi Antenna Height 2 5m Air rate 1 2kbps FIFO 256Byte Max Length for single time transmitting TCXO Frequency 26MHz 1ppm Protocol GFSK suggested FSK MSK 4 FSK GFSK GMSK ASK AFSK FM PSK Encapsulatio...

Page 6: ...7 NC Suspended Port 8 SYSCLK I O Crystal oscillator output see details from AX5243 manual 9 VCC P Power supply range 1 8 3 6V additional external ceramic filter capacitor suggested 10 GND P Ground wi...

Page 7: ...outing must avoid module locations If the wiring must pass under the module assuming that the module is soldered to the Top Layer the area where the module is in contact with the Top Layer should be c...

Page 8: ...e in full accordance with AX5243 user manual IRQ function can be disconnected and use SPI query to obtain the interrupt status but it is recommended to use the external interrupt of the microcontrolle...

Page 9: ...ansmitting power Due to antenna quality or poor matching between antenna and module 6 2 Module is easy to damage Please check the power supply source ensure it is 2 0V 3 6V voltage higher than 3 6V wi...

Page 10: ...t temperature max Tsmax Mx preheating temp 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp Average ramp up rate 3 second max 3 second max...

Page 11: ...ellent performance and reasonable price Model Type Freq Gain Size Feeder Length Interface Features Hz dBi mm cm TX2400 PCB 5010 FPC antenna 2 4G 2 0 10x50 IPEX Flexible FPC soft antenna TX2400 JZ 3 Pl...

Page 12: ...ision History Version Date Description Issued by 1 0 2019 08 15 Initial version 1 1 2019 8 20 Error correction Lyl About us Website www ebyte com Sales info cdebyte com Support support cdebyte com Tel...

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