Related Manuals for Ebyte E22 T22S Series
Summary of Contents for Ebyte E22 T22S Series
- Page 1 Chengdu Ebyte Electronic Technology Co., Ltd. E22-xxxT22S series product user manual E22-xxxT22S User Manual AT command 22dBm LoRa wireless module Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 2: Table Of Contents
8.3 Notes for upgrading firmware via serial port ....................25 9. Repeater networking mode ............................25 10. Configuration instructions on computer ........................ 27 11. Hardware Design ..............................27 12. Frequently Asked Questions ...........................28 12.1 Transmission distance is short ........................28 Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 3 13.2 Reflow soldering curve ..........................30 14. Related Models ...............................30 15. Antenna Guide ................................ 31 15.1 Antenna recommendations ........................... 31 16. Bulk packaging method ............................32 16.1 E22-230/400/900T22S batch packaging method ..................32 Revise history ................................32 About Us ..................................33 Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 4: Disclaimer And Copyright Notice
Due to product version upgrades or other reasons, the contents of this manual may be changed. Ebyte Electronic Technology Co., Ltd. reserves the right to modify the contents of this manual without any hint or notice. This manual is only used as a guide. Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 5: Product Overview
The parameters are saved when power is turned off, and the module will work according to the set parameters after powering on again; Efficient watchdog design, once an exception occurs, the module will automatically restart and continue to work according Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 6: Application Scenarios
Air speed 2.4K～15.6K 2.4K～62.5K 2.4K～62.5K Controlled by programming blocking Less chance of burning when power used at close range Subpackage 32/64/128/240 TX packet Btye bytes can be set to be sent length through commands Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 7: Electrical Parameters
Subpackage 32/64/128/240 bytes can be 240Byte length set to be sent through commands Packaging SMD type method Cache capacity 1000Byte Antenna IPEX/stamp hole Equivalent impedance is about 50 Ω interface Size 26 * 16 mm ±0.1mm Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 8: Mechanical Dimensions And Pin Definitions
Empty pin(Not open for use, users do not need to care) Empty pin(Not open for use, users do not need to care) Empty pin(Not open for use, users do not need to care) Module ground wire Module ground wire Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 9: Recommended Connection Diagram
For user to wakes up the external MCU and it outputs low level during power-on self-check initialization; (can be left floating) Module power supply positive reference, voltage range: 2.7 ~ 5.5VDC Module ground wire 4. Recommended Connection Diagram Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 10: Function Description
Chengdu Ebyte Electronic Technology Co., Ltd. E22-xxxT22S series product user manual 5. Function Description 5.1 Fixed point Transmission 5.2 Broadcast Transmission Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 11: Broadcasting Address
It can indicate whether there is data not transmitted via wireless way, or whether the received data has not been sent through UART, or whether the module is still in the process of self-check initialization. 5.6.1 Indication of Serial port data output Used to wake up the external MCU from sleep; Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 12: Indication Of Wireless Transmission
When AUX outputs low level, it means the module is busy & it won’t conduct working mode checking. Within 1ms since AUX outputs high level, the module working mode switch will be completed. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 13: Working Mode
MCU immediately sleep, then the module will automatically transmit the user data through the wireless, and will enters sleep mode within 1ms automatically; This will saves MCU's working time and reduces its power consumption. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 14: Normal Mode（Mode 0
Wireless transmission is turned off and it will be automatically turned on during wireless configuration. Receiving Wireless reception is turned off and it will be automatically turned on during wireless configuration. Configuration Users can access registers to configure module’s working status Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 15: Deep Sleep Mode（Mode 3
Send: C1 00 04 Return: C1 00 04 12 34 00 62 Command: C2+starting address+length+parameters Response: C1+starting address+length+parameters Set temporary register E.g 1: Configure Channel to be 0x09 command starting address length parameter Send: Return: C1 Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 16: E22-400/900T22S Register Description
Serial port baud rate 38400 Write Serial port baud rate 57600 Serial port baud rate 115200 Serial port parity bit 8N1（default） The communication parties can have different serial parity bit. 8N1（equal to 00） Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 17 REG1 start from 00) Write Reserve Software mode switching If you use Ebyte's host computer configuration software, this bit will be turned off Disabled (default) automatically. If you don’t want to use the M0 M1 pins to switch working modes, you can enable this function, and use specific serial port commands to switch modes.
- Page 18 The longer the cycle time T (WOR listening 2000ms interval period), the lower the average power consumption, but the greater the data delay. 2500ms Both the transmitter and the receiver must be set 3000ms Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 19: E22-230T22S Register Description
Air data rate 2.4k The higher the air data rate is, the smaller the Air data rate 2.4k delay in response, and the shorter the transmission Air data rate 2.4k distance is. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 20 Read/ Reserve REG1 Write Software mode switching If you use Ebyte's host computer configuration software, this bit will be turned off Disabled (default) automatically. If you don’t want to use the M0 M1 pins to switch working modes, you can enable this function, and use specific serial port commands to switch modes.
- Page 21 Write CRYPT_L Low byte of Key（default 0） The module will internally use these two bytes as a calculation factor to do a transform encryption processing for the wireless signal over the air. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 22: Factory Default Parameters
Command Commands Description Example Example description AT+IAP (use with caution, please see 8.3 Precautions for Enter IAP upgrade mode AT+IAP Enter IAP upgrade mode Serial Port Firmware Upgrade in this article for details ) Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 23 Query AT command table Return to AT command list AT+DEVTYPE=? Query module model DEVTYPE=E22 Return module model -400T22S/D AT+FWCODE=? Query firmware code FWCODE=7432-0-10 Return firmware version AT+UART=? Query baud rate and AT+UART=3,0 Return baud rate 9600, Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 24: At Parameter Analysis
4:19200 5:38400 6 : 57600 7:115200 Parity ( serial port parity bit ) 0:8N1 1:8O1 2:8E1 3:8N1 Rate (over-the-air data rate) 0:2.4K 1:2.4K 2:2.4K 3:4.8K Applicable to 400MHz frequency band and 900MHz 4:9.6K 5:19.2K 6:38.4K 7:62.5K frequency band Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 25: Notes For Upgrading Firmware Via Serial Port
The repeater module cannot transmit and receive data, and cannot perform low-power operation. When module enters the other modes from mode 3 (sleep mode) or during the reset process, it will reset the user parameters. During this period, AUX outputs low level. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. - Page 26 As shown in below： The data sent by Node 1 can be received by Node 2 and Node 4; The data sent by by Node 2 and Node 4 can also be received by Node 1. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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Page 27: Configuration Instructions On Computer
Please check the power supply to ensure that it is within the recommended power supply voltage. If it exceeds the maximum value, it will cause permanent damage to the module; Please check the stability of the power supply. The voltage cannot fluctuate greatly and frequently; Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 28: Frequently Asked Questions
The low voltage of the power supply at room temperature is lower than the recommended value. The lower the voltage, the smaller the power generated ; There is a poor match between the antenna and the module or there is a problem with the quality of the antenna itself. Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 29: Modules Are Easily Damaged
Package peak temperature Tp product's "Moisture Sensitivity" product's "Moisture Sensitivity" label. label. The time (Tp ) within 5°C of the specified classification temperature (Tc ), see the 20 seconds 30 seconds figure below Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 30: Reflow Soldering Curve
Tested Product Package Communication Product number frequency power distance Size form Interface E22-230T22S 230M 16*26 E22-230T30S 230M 20*40.5 E22-400T22S 433/470M 16*26 E22-400T30S 433/470M 20*40.5 E22-900T22S 868/915M 16*26 E22-900T30S 868/915M 20*40.5 E22-400M22S 433/470M 14*20 Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 31: Antenna Guide
Sucker antenna 433M SMA-J power comsumption Large sucker antenna, high TX433-XPH-300 Sucker antenna 433M SMA-J gain 470/490 Short straight TX490-JZ-5 Rubber antenna SMA-J &omnidirectional 470/490 Small sucker antenna, TX490-XPL-100 Sucker antenna SMA-J cost-effictive Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 32: Bulk Packaging Method
16.1 E22-230/400/900T22S batch packaging method Revise history Version Revision date Revision Notes Maintenance man 2023-6-15 initial version 2024-3-20 Content correction 2024-4-3 Content correction 2024-4-8 Content correction 2024-5-13 Content correction 2024-10-25 Authentication changes, picture modifications Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd. -
Page 33: About Us
Documents and RF Setting download link: https://www.cdebyte.com Thank you for using Ebyte products! Please contact us with any questions or suggestions: info@cdebyte.com uld Industrial Park, 199# Xiqu Ave, High-tech Zone, Chengdu, 611731, Sichuan, China Copyright©2012–2024, Chengdu Ebyte Electronic Technology Co., Ltd.
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