E220-400T30S User Manual
CONTENTS 1. OVERVIEW ........................................................................................................................................................................................................................ 3 1.1 INTRODUCTION .................................................................................................................................................................................................................................... 3 1.2 FEATURES ..........
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 11.1 REFLOW SOLDERING TEMPERATURE ........................................................................................................................................................................................... 20 11.2 REFLOW SOLDERING CURVE ..........................................................................................................................................................................................
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 1. Overview 1.1 Introduction E220-400T30S is a wireless serial port module (UART) based on SEMTECH's SX1268, working at 433.125, TTL level output, compatible with 3.3V and 5V IO port voltage. Compared with the traditional SX1278 solution, it has a longer transmission distance, faster speed, lower power consumption, and smaller size; it supports functions such as air wake-up, wireless configuration, carrier monitoring, automatic relay.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S 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. 2. Specification and parameter 2.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 10,LORATM; -117dbm,BW_L=500kHz,SF = 7,LORATM; -127dbm,BW_L=500kHz,SF = 11,LORATM; Air data rate（bps） 2.4k 2.4k 62.5k Controlled via user’s programming Test condition：clear and open area, Distance for reference 10km antenna gain: 0dBi，antenna height: 2.5m， air data rate: 2.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 3 Size and pin definition No. Name Direction 1 GND - Ground 2 GND - Ground 3 GND - Ground 4 GND - Ground 5 M0 6 M1 （weak pull-up） 7 RXD Input Input （weak pull-up） Input Function Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded). Work with M0 to decide 4 working modes of module (not suspended, if not used, could be grounded).
Chengdu Ebyte Electronic Technology Co., Ltd. 8 TXD Output E220-400T30S User manual TTL UART outputs, connects to external RXD (MCU, PC) input pin. Can be configured as open-drain or push-pull output To indicate module ’ s working status & wakes up the external MCU. During the 9 AUX Output procedure of self-check initialization, the pin outputs low level. Can be configured as push-pull output (can be suspended). Power supply ：3.0~ 5.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 4. Connect to MCU Description（STM8L MCU） No. 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. E220-400T30S 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. E220-400T30S 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. E220-400T30S User manual 5.6.2 Indication of wireless transmitting Buffer (empty): the internal 256 bytes data in the buffer are written to the RFIC (Auto sub-packaging). When AUX=1, the user can input data less than 256 bytes continuously without overflow. Buffer (not empty): when AUX=0, the internal 256 bytes data in the buffer have not been written to the RFIC completely.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will reset 4 user parameters, during which AUX outputs low level. Due to the characteristics of the LoRa modulation method, the information transmission delay is much longer than that of FSK. For example, at 2.4kbps airspeed, the 100-byte transmission delay is about 1.5 seconds.
Chengdu Ebyte Electronic Technology Co., Ltd. ⚫ 4 ⚫ ⚫ 5 E220-400T30S User manual Similarly, any mode switching can use this feature.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 6.5 Deep sleep mode（Mode 3） M0 = 1，M1 = 1 Type Transmitting Unable to transmit wireless data Receiving Unable to receive wireless data Configuration Users can access the registers to configure the module's operation state. When from the sleep mode to other modes, the module will reconfigure the parameters.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and air data rate (2.4K). Send: C2 00 04 12 34 00 61 Return: C1 00 04 12 34 00 61 Command: CF CF + normal command Respond：CF CF + normal respond E.g 1: Channel is 0x09 Command head command Send: CF CF C0 Returen: CF CF C1 Wireless configuration 5 starting address length parameter 05 01 09 05 01 09 E.
Chengdu Ebyte Electronic Technology Co., Ltd.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 7 Enable RSSI 1：Enable 0：Disable（default） ⚫ When enabled, the module receives wireless data and it will follow an RSSI strength byte after output via the serial port TXD .--------------------------------------In fixed point transmission, the module recognizes the first three bytes of the serial data as: address high + address low + channel and takes it as the wireless transmitting target.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 8 Configuration instructions on computer ⚫ The following figure shows the E220-400T30S 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 configuration on computer, the module address, frequency channel, network ID, and key are all in decimal mode.
Chengdu Ebyte Electronic Technology Co., Ltd. ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ ⚫ E220-400T30S User manual and the module needs to be reliably grounded.； Please pay attention to the correct connection of the positive and negative poles of the power supply.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual distance). ⚫ The power supply low voltage under room 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. 10.2 Module is easy to damage ⚫ Please check the power supply source, ensure it is in right range, voltage higher than max value will damage the module.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual Aveage ramp-down rate（Tp to Tsmax） Time 25℃ to peak temperature 6℃/second max 6℃/second max max 6 minutes max 8 minutes 11.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual E220-900T30S SX1262 868/915M 30 10 SMD TTL E220-900T22S SX1262 868/915M 22 5 SMD TTL E220-400T30S SX1268 433/470M 30 10 SMD TTL E220-400T22S SX1268 433/470M 22 5 SMD TTL 13 Antenna recommendation The antenna is an important role in the communication process. A good antenna can largely improve the communication system.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual 14 Package for batch order Revision history Version Date Description Issued by 1.0 2020-07-08 Initial version Ken Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
Chengdu Ebyte Electronic Technology Co., Ltd. E220-400T30S User manual FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
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.
