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Related Manuals for Ebyte E22-400T22DC
Summary of Contents for Ebyte E22-400T22DC
- Page 1 E22-400T22DC User Manual SX1262 433/470MHz 160mW LoRa Wireless Module...
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Page 2: Table Of Contents
3） ..........................14 （M EEP SLEEP MODE 7. REGISTER READ AND WRITE CONTROL ................14 7.1 C ..............................14 OMMAND FORMAT 7.2 R ............................... 15 EGISTER DESCRIPTION 7.3 F ..........................17 ACTORY DEFAULT PARAMETER Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. - Page 3 ..........................21 RROR IS HIGH 12. WELDING GUIDANCE ......................22 13. E22 SERIES ..........................22 14. ANTENNA GUIDANCE ......................22 ........................... 22 14.1 A NTENNA RECOMMENDATION REVISION HISTORY ........................23 ABOUT US ............................23 Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
- Page 4 E22-400T22DC User Manual Disclaimer EBYTE reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein may in whole or in part be subject to intellectual property rights. Reproduction, use, modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited.
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Page 5: Overview
E22-400T22DC User Manual 1. Overview 1.1 Introduction E22-400T22DC is a wireless serial port module (UART) based on SEMTECH's SX1262 RF chip. It has multiple transmission modes, working in the 410.125MHz~493.125MHz, frequency (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage. -
Page 6: Application
Sleep current（μA） Software is shut down Max Tx power（dBm） 21.5 22.0 22.5 Receiving sensitivity（dBm） -146 -147 -148 Air data rate is 0.3 kbps Air data rate（bps） 0.3k 2.4k 62.5k Controlled via user’s programming Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. - Page 7 Can be configured via command as 32/64/128/240 bytes per packet to TX length 240 Byte transmit Buffer 1000 Byte Modulation LoRa New generation LoRa modulation technology Communication interface UART TTL level Package Connector 1*7*2.54mm Size 21*36 mm Antenna 50 ohm impedance Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
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Page 8: Size And Pin Definition
TTL UART output, connects to external RXD input pin. To indicate module ’ s working status & wakes up the external MCU. During Output the procedure of self-check initialization, the pin outputs low level. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 9: Connect To Mcu
Description（STM8L MCU） The UART module is TTL level, please connect with TTL level MCU. For some MCU works at 5V DC, it may need to add 4～10K pull-up resistor for the TXD & AUX pin. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 10: Function Description
Chengdu Ebyte Electronic Technology Co.,Ltd. E22-400T22DC User Manual 5. Function description 5.1 Fixed transmission 5.2 Broadcasting transmission 5.3 Broadcasting address For example: Set the address of module A as 0xFFFF, and the channel as 0x04; Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 11: Monitor Address
It can indicate whether there are data that are not sent yet via wireless way, or whether all wireless data has been sent through UART, or whether the module is still in the process of self-check initialization. 5.6.1 Indication of UART output To wake up external MCU Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-10... -
Page 12: Indication Of Wireless Transmitting
AUX outputs high level. When AUX outputs low level, it means the module is busy & cannot conduct operating mode checking. Within 1ms since AUX outputs high level, the mode switch will be completed. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-11... -
Page 13: Operating Mode
And the user's main MCU immediately sleeps, the module will automatically transmit the user data through the wireless, and automatically enters sleep within 1ms; This saves MCU's working time and reduces power consumption. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-12... -
Page 14: Normal Mode （Mode 0
It can receive data normally, the receiving function is the same as mode 0. 6.4 Configuration mode（Mode 2） M0 = 0，M1 = 1 Type Transmitting Wireless transmitting off Receiving Wireless receiving off Configuration Users can access the registers to configure the module's operation state. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-13... -
Page 15: Deep Sleep Mode （Mode 3
E.g 1: Channel is 0x09 temporary command starting address length parameter registers Send: Return: C1 E.g 2: Configure module address (0x1234), network address (0x00), serial port (9600 8N1) and air data rate (1.2K). Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-14... -
Page 16: Register Description
The serial port modes of the two communication parties can be different; 8N1（equal to 00） Wireless air data rate（bps） The air rate of both communication parties must Air data rate 0.3k be the same; Air data rate 1.2k Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-15... - Page 17 In order to prevent data return-back, it is recommended to use it in conjunction with the Enable repeater function fixed point mode. That is: the target address is different from the source address. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-16...
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Page 18: Factory Default Parameter
7.3 Factory default parameter Factory default parameters: C0 00 00 62 00 17 Model No. Frequency Address Channel Air data rate Baud rate Serial format Power E22-400T22DC 433.125MHz 0x0000 0x17 2.4kbps 9600 22dbm Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 4-17... -
Page 19: Repeater Networking Mode
③Two-way repeater As shown in the figure: the data sent by node 1, the nodes 2, 4 can receive the data sent by node 2, 4, and node 1 can also receive it. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 8-18... -
Page 20: Configuration Instructions On Computer
E22-400T22DC User Manual 9. Configuration instructions on computer The following figure shows the E22-400T22DC configuration host computer display interface, users 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 ... -
Page 21: Hardware Design
It is recommended to stay away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding can be done. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 10-20... -
Page 22: Faq
There are co-channel signal interference nearby, please be away from interference sources or modify frequency and channel to avoid interference; Poor power supply may cause messy code. Make sure that the power supply is reliable. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 11-21... -
Page 23: Welding Guidance
Antenna is an important role in the communication process. Inferior antennas often have a huge impact on communication systems. Therefore, we recommend some antennas for wireless modules with excellent performance and reasonable price. Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 14-22... -
Page 24: Revision History
Linson About 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.com ------------------------------------------------------------------------------------------------------------ Fax: 028-64146160 ext. 821 Web: www.ebyte.com Address: Innovation Center D347, 4# XI-XIN Road,Chengdu, Sichuan, China Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.