background image

Chengdu Ebyte Electronic Technology Co., Ltd.

E22-230T22S User manual

Copyright ©2012–2018,Chengdu Ebyte Electronic Technology Co.,Ltd.

6

1.4 Function introduction

LoRa spread spectrum

: LoRa direct sequence spread spectrum technology will bring longer communication

distance; low transmit power density, it is not easy to cause interference to other equipment.

High confidentiality

, extremely low probability of interception; strong anti-interference ability, strong

suppression of co-channel interference and various noises; excellent anti-multipath fading performance.

LBT

: The module has a Listen before talk (LBT) function. When this function is enabled, the module actively

monitors the channel environment noise before transmitting. If the noise exceeds the threshold, it will be sent
delayed. This feature can greatly improve the communication success rate of the module in harsh
environments. This function can be used for network transmission and anti-collision processing.

RSSI:

The signal strength indication function. The module supports packet signal strength serial output. Can

be used to assess signal quality, improve communication networks, and ranging. The module supports
ambient noise signal strength serial output. It can be used to implement LBT functions manually.

Wireless configuration

: Remotely configure or read wireless module parameters by sending command

packets wirelessly.

Networking function

: The module can implement multi-level repeater networking. Multi-level repeater is

suitable for ultra long-distance communication. Multiple networks in the same area can run simultaneously.

Ultra-low power consumption

: the air wake-up function. It is especially suitable for battery-powered

applications: when the module is in WOR state, the configuration module WOR monitors the overall power
consumption of the adjustable module. The maximum configurable response delay of the module is 4000ms.
The average current of the module in this mode is about 2uA.

Fixed-point transmission

: supports address function, the host can transmit data to any address, any channel,

to achieve networking, repeater and other application. For example: module A transmits data to module B
(address is 0x00 01, channel is 0x80), date is AA BB CC, the communication format is: 00 01 80 AA BB CC,
where 00 01 is the module B address and 80 is the module B channel, then module B can receive the AA BB
CC (other modules do not receive data).

Broadcast monitoring

: Set the module address to 0xFFFF, which can monitor the data transmission of the

module on the same channel; the transmitted data can be received by the module of any address on the
same channel, thus playing the role of broadcasting and monitoring.

Forward error correction

: The module has FEC forward error correction algorithm, which has high coding

efficiency and strong error correction capability. In the case of sudden interference, it can actively correct the
interfered data packets, greatly improving reliability and transmission distance. When without FEC, such
packets can only be discarded.

Deep sleep function

: When the module is in sleep mode, mode 3, the wireless receiver is turned off and the

micro-controller is in a sleep state; at this time, the power consumption of the whole device is about 2uA.

Watchdog

: The module has a built-in watchdog and performs precise time layout. Once an exception occurs,

the module will restart within 1 second and continue to work according to the previous parameter settings.

Summary of Contents for E22-230T22S

Page 1: ...E22 230T22S User Manual SX1262 230MHz 160mW SMD Wireless Module...

Page 2: ...ERATING PARAMETER 7 3 SIZE AND PIN DEFINITION 8 4 CONNECT TO MCU 10 5 FUNCTION DESCRIPTION 11 5 1 FIXED TRANSMISSION 11 5 2 BROADCASTING TRANSMISSION 11 5 3 BROADCASTING ADDRESS 12 5 4 MONITOR ADDRESS...

Page 3: ...E MODE 2 16 6 5 DEEP SLEEP MODE MODE 3 16 7 REGISTER READ AND WRITE CONTROL 17 7 1 COMMAND FORMAT 17 7 2 REGISTER DESCRIPTION 18 7 3 FACTORY DEFAULT PARAMETER 21 8 REPEATER NETWORKING MODE 22 9 CONFIG...

Page 4: ...nic Technology Co Ltd E22 230T22S User Manual 12 1 REFLOW SOLDERING TEMPERATURE 27 12 2 REFLOW SOLDERING CURVE 28 13 E22 SERIES 28 14 ANTENNA RECOMMENDATION 29 15 PACKAGE FOR BATCH ORDER 30 REVISION H...

Page 5: ...oftware FEC forward error correction algorithm which has high coding efficiency and strong error correction capability In the case of sudden interference it can actively correct the interfered data pa...

Page 6: ...ission power is increased by 80 Low power consumption for battery supplied applications Support 3 3V 5 5V power supply power supply over 3 3V can guarantee the best performance Industrial grade standa...

Page 7: ...he air wake up function It is especially suitable for battery powered applications when the module is in WOR state the configuration module WOR monitors the overall power consumption of the adjustable...

Page 8: ...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 2 2 Operating parameter Main parameter Per...

Page 9: ...Co Ltd 8 TX length 240 Byte Can be configured via command as 32 64 128 240 bytes per packet to transmit Buffer 1000 Byte Modulation GFSK LoRa Communication interface UART Package SMD Connector 1 27mm...

Page 10: ...RXD Input TTL UART inputs connects to external MCU PC TXD output pin Can be configured as open drain or pull up input 8 TXD Output TTL UART outputs connects to external RXD MCU PC input pin Can be co...

Page 11: ...30T22S User manual Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 10 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 t...

Page 12: ...gdu Ebyte Electronic Technology Co Ltd E22 230T22S User manual Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 11 5 Function description 5 1 Fixed transmission 5 2 Broadcasting transmis...

Page 13: ...of 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 user s parameters During the process th...

Page 14: ...can input data less than 1000 bytes continuously without overflow Buffer not empty when AUX 0 the internal 1000 bytes data in the buffer have not been written to the RFIC completely If the user starts...

Page 15: ...ter switching to new operating mode it will not work in the new mode immediately until AUX rising edge lasts for 2ms If AUX stays on the high level the operating mode switch can be effected immediatel...

Page 16: ...is switched from other modes to sleep mode if the data has not been processed yet The module will process these data including receiving and sending before entering sleep mode This feature can be use...

Page 17: ...automatically added before transmitting Receiving It can receive data normally the receiving function is the same as mode 0 6 4 Configuration mode Mode 2 Type M0 0 M1 1 Transmitting Wireless transmit...

Page 18: ...ength parameter Send C0 05 01 09 Returen C1 05 01 09 E g 2 Configure module address 0x1234 network address 0x00 serial port 9600 8N1 and air data rate 1 2K Send C0 00 04 12 34 00 61 Return C1 00 04 12...

Page 19: ...en CF CF C1 05 01 09 E g 2 Configure module address 0x1234 network address 0x00 serial port 9600 8N1 and air data rate 1 2K Send CF CF C2 00 04 12 34 00 61 Return CF CF C1 00 04 12 34 00 61 6 Wrong fo...

Page 20: ...en transmitting large packets continuously users need to consider the data blocking caused by the same baud rate and data may even be lost It is generally recommended that both parties have the same b...

Page 21: ...ad Write REG3 7 Enable RSSI 1 Enable 0 Disable default 6 Fixed point transmission 1 Fixed point transmission mode 0 Transparent transmission mode default 5 Enable reply 1 Enable repeater function 0 Di...

Page 22: ...via the wireless during this period Each serial byte will be refreshed for 1000ms Users must transmit the first byte within 1000ms Valid only for mode 1 Period T 1 WOR 500ms maximum 4000ms minimum 500...

Page 23: ...ch the AUX outputs low level Repeater networking rules 1 Forwarding rules the repeater can forward data in both directions between two NETIDs 2 In repeater mode ADDH ADDL is no longer used as the modu...

Page 24: ...figure shows the E22 230T22S configuration host computer display interface the user can switch to the command mode through M0M1 and quickly configure and read the parameters on computer In the config...

Page 25: ...Please pay attention to the correct connection of the positive and negative poles of the power supply Reverse connection may cause permanent damage to the module Please check the power supply to ensur...

Page 26: ...frequency digital high frequency analog power traces around the module that will greatly affect the performance of the module It is recommended to stay away from the module according to the strength o...

Page 27: ...m temperature is lower than 2 5V the lower the voltage the lower the transmitting power Due to antenna quality or poor matching between antenna and module 11 2 Module is easy to damage Please check th...

Page 28: ...mp 100 150 Preheat 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...

Page 29: ...868M 915M 22 7 SMD 16 26 UART E22 230T22S SX1262 230M 22 7 SMD 16 26 UART E22 400T22S SX1268 430M 470M 22 7 SMD 16 26 UART E22 400M30S SX1268 433M 470M 30 12 SMD 24 38 5 SPI E22 900M30S SX1262 868M 91...

Page 30: ...recommend some antennas for wireless modules with excellent performance and reasonable price Model No Type Frequency Hz Interface Impedanc e ohm Height Cable length Function feature TX230 XPH 300 Suck...

Page 31: ...rder Revision history Version Date Description Issued by 1 00 2018 01 08 Initial version huaa 1 10 2018 04 16 Content updated huaa 1 20 2018 05 24 Content updated Huaa 1 21 2018 07 20 Model name revis...

Page 32: ...out us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please contact us with any questions or suggestions info cdebyte co...

Reviews: