E22-900T30S User Manual
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual CONTENTS 1. OVERVIEW........................................................................................................................................3 1.1 INTRODUCTION............................................................................................................................................................... 3 1.2 FEATURES............................................................................................
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 7.2 REGISTER DESCRIPTION.................................................................................................................................................. 16 7.3 FACTORY DEFAULT PARAMETER...................................................................................................................................... 18 8 REPEATER NETWORKING MODE........................................................................
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 1. Overview 1.1 Introduction E22-900T30S is a wireless serial port module (UART) . It has multiple transmission modes, LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage. With PA and LNA, the receivingsensitivity is improved accordingly.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 1.3 Application Home security 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. 1.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 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.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual Main parameter Description Distance for reference 10000m TX length 1000 Byte Buffer 1000 Byte Modulation LORA Communication interface UART Package SMD Connector 2.54 mm Size 40.5*25 mm Antenna IPEX/stamp hole Remark Test condition：clear and open area, antenna gain: 5dBi， antenna height: 2.5m，air data rate: 2.
Chengdu Ebyte Electronic Technology Co., Ltd. No. Name 1 M0 2 M1 E22-900T30S User manual Direction Function Input Work with M1 to decide 4 working modes of module (not suspended, if not （weak pull-up） Input （weak pull-up） 3 RXD Input 4 TXD Output used, could be grounded). Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded). TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can be configured as open-drain or pull-up input.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 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. Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 5 Function description 5.1 Fixed transmission 5.2 Broadcasting transmission Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 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 transmitter (transparent transmission), all modules under channel 0x04 will receive the data, the purpose of broadcast is realized. 5.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 5.6.2 Indication of wireless transmitting Buffer (empty): the internal 1000 bytes data in the buffer are written to the RFIC (Auto sub-packaging). When AUX=1, the user 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.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 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 For function 1 & function 2 mentioned above, the priority should be given to the one with low level output, which means 1 if it meets each of any low level output condition, AUX outputs low level, if none of the low level condition is met, AUX outputs high level.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 6.1 Mode switching No. Remark 1 2 3 4 5 Users can combine M1 and M0 with high and low levels to determine the operating mode.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 6.3 WOR mode（Mode 1） Type Transmitting Receiving M0 = 1，M1 =0 When defined as a transmitting party, a preamble is automatically added before transmitting. It can receive data normally, the receiving function is the same as mode 0. 6.
Chengdu Ebyte Electronic Technology Co., Ltd. No. Command format E22-900T30S User manual Description Command: C0+starting address+length+parameters Response: C1+starting address+length+parameters 1 Set register E.g 1: Channel is 0x09 command starting address Send: C0 05 Returen: C1 05 length parameter 01 09 01 09 E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and air data rate (1.2K).
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 7.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual transmitting mode to read the register. Register 0x00: Current ambient noise rssi Register 0X01: rssi when the data was received last time. （Current channel noise is: dBm =-RSSI/2） Command format: C0 C1 C2 C3 + starting address + read length Returns: C1 + address address + read length + read valid value E.
Chengdu Ebyte Electronic Technology Co., Ltd. 001：1000ms 010：1500ms 011：2000ms（default） 100：2500ms 101：3000ms 110：3500ms 111：4000ms Key high byte (default 0） 07H Write CRYPT_H 08H Write CRYPT_L 80H~ 86H Read only PID E22-900T30S User manual Write only, read returns 0 Used for user encryption to avoid intercepting airborne wireless data by similar modules.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual “Node 1” NETID is 08. “Node 2” NETID is 33. Primary repeater 1‘s ’ADDH\ADDL are 08，33. So the signal sent by node 1 (08) can be forwarded to node 2 (33) At the same time, node 1 and node 2 have the same address, so the data transmitted by node 1 can be received by node 2. ② Secondary repeater Secondary repeater’s ADDH\ADDL are 33，05. Therefore, Repeater 2 can forward the data of Repeater 1 to the network NETID: 05.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual In the configuration on computer, the module address, frequency channel, network ID, and key are all in decimal mode. The range of values of each parameter is: Network address: 0-65535 Frequency channel: 0-80 Network ID: 0-255 Key: 0-65535 When the user configures the repeater mode using the host computer, special attention must be paid.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other parts with large electromagnetic interference.； High-frequency digital routing, high-frequency analog routing, and power routing must be avoided under the module.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 11.2 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 measure are taken when installing and using, high frequency devices have electrostatic susceptibility.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 12.2 Reflow soldering curve 13 E22 series 14 Antenna recommendation Tx power Distance Hz dBm km E22-900T22S 868M 915M 22 7 SMD 16*26 UART E22-230T22S 230M 22 7 SMD 16*26 UART is E22-400T22S 430M 470M 22 7 SMD 16*26 UART an E22-400M30S 433M 470M 30 12 SMD 24*38.5 SPI E22-900M30S 868M 915M 30 12 SMD 24*38.5 SPI E22-900M22S 868M 915M 22 6.5 SMD 14*20 SPI role E22-400M22S 433M 470M 22 6.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual tion process. A good antenna can largely improve the communication system. Therefore, we recommend some antennas for Model No. TX868-XP-100 TX868-JK-20 TX868-JZ-5 TX915-XP-100 TX915-JK-20 TX915-JK-11 TX915-JZ-5 wireless modules with excellent performance and reasonable price.
Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual 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 revised Huaa 1.30 2018-10-23 Model No. split Huaa FCC Statement This device complies with part 15 of the FCC Rules.
Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions Thismoduleisstand-alonemodular.
