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Related Manuals for Ebyte E49-900T20S
Summary of Contents for Ebyte E49-900T20S
- Page 1 E49-900T20S User Manuel 868MHz/915MHz SMD Wireless Module...
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Page 2: Table Of Contents
6.3 RSSI M （M 2） ............................13 6.4 S ETTING （M 3） ............................13 6.5 S LEEP （M 6.6 F ............................13 AST COMMUNICATION TEST 7. COMMAND FORMAT ......................... 14 ............................... 15 7.1 D EFAULT PARAMETERS Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. - Page 3 Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 7.2 R ..........................15 EADING OPERATING PARAMETER 7.3 R ........................15 EADING VERSION NUMBER READING ..........................15 7.4 P ARAMETER SETTING INSTRUCTION 8. HARDWARE DESIGN ......................... 18 ........................19 9.1 C OMMUNICATION RANGE IS TOO SHORT .............................
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Page 4: Disclaimer
E49-900T20S 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. -
Page 5: Overview
1.1 Introduction E49-900T20S is an ultra-high cost-effective wireless module launched by Chengdu Ebyte. It has 4 operating modes. Each transmission mode has its own characteristics and can be applied to various application scenarios. E49-900T20S can perfectly support industrial-grade applications, and undergoes rigorous testing at the factory to ensure its industrial reliability and batch consistency. -
Page 6: Specification And Parameter
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 2. Specification and parameter 2.1 Limit parameter Performance Main parameter Remark Min. Max. Voltage over 5.5V will cause permanent Power supply（V） damage to module Chances of burn is slim when modules Blocking power（dBm）... -
Page 7: Size And Pin Definition
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 3. Size and pin definition Name Direction Function Module ground wire Module ground wire Module ground wire Module ground wire Input （pull up when Cooperate with M1 to determine 4 operating modes of the module(can be lifted it’s weak）... -
Page 8: Recommended Wiring Diagram
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual Module ground wire Module ground wire antenna Module ground wire 4. Recommended wiring diagram Brief introduction of connection between the module and the single-chip microcomputer (the above picture uses STM8L single-chip microcomputer as an example) The wireless serial port module is TTL level, please connect with MCU with TTL level. -
Page 9: Function Description
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 5. Function description 5.1 Module reset After the module is powered on, AUX will immediately output a low level and perform a hardware self-test and set the operating mode according to user parameters. In this process, AUX is kept at a low level, outputs a high level after completion, and starts to work normally according to the working mode composed of M1 and M0. -
Page 10: Reset And Exit Sleep Mode
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 5.2.3 Reset and exit sleep mode Only when resetting and exiting sleep mod 5.2.4 AUX Precautions The function 1 and function 2 mentioned above have low output priority, that is, if any output low condition is met, AUX outputs a low level;... -
Page 11: Broadcast Transmission
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 5.2.6 Broadcast transmission 5.2.7 Broadcast address Example: Set the address of module A to 0xFFFF and the channel to 0x04 When module A is used for transmission (same mode, transparent transmission mode), all receiving module ... -
Page 12: Monitor Address
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 5.2.8 Monitor Address Example: Set the address of module A to 0xFFFF and the channel to 0x04.When module A is used as a receiver, it can receive all the data under the 0x04 channel to achieve the purpose of monitoring. -
Page 13: Transmission Mode（Mode0
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual send all user data through wireless, and automatically enter sleep within 1ms; thus saving the MCU's working time and reducing power consumption. Similarly, any mode switch can use this feature. After processing the current mode event, the module will ... -
Page 14: Setting Mode（Mode2
Step Specific operation Connect E49-900T20S module to the E49-TBL test board, and then plug into the USB test board (E15-USB-T2), plug into the computer to ensure that the driver has been installed correctly; Plug in the mode selection jumper cap on the USB test board ( M1 = 0, M0 = 0),... -
Page 15: Command Format
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual Select 5V (the module supports 2.6 ~ 5.5V). Run the "Serial Debug Assistant" software and select the correct serial port number and observe the sending window and the corresponding receiving window. -
Page 16: Default Parameters
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual Send C2 + 5 bytes working parameter in hexadecimal format, a total of 6 bytes and C2+operating must be sent continuously(do not save when power off) parameter Send three C3s in hexadecimal format. The module returns version information and C3+C3+C3 must be sent continuously. - Page 17 Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual Fix 0xC0 or 0xC2, it means this frame data is control Must be 0xC0 or 0xC2 command C0: Save the parameters when power-down HEAD C2: Do not save the parameters when...
- Page 18 Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual Communication frequency（850M + CHAN * 0.5M） 00H-A0H， correspond to 850~930 MHz. (Default 0x24: 868M) In fixed transmission mode, the first three bytes of each user's data frame Fixed transmission enabling bit（similar to MODBUS）...
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Page 19: Hardware Design
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 8. Hardware design It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible, and the module needs to be reliably grounded.；... -
Page 20: Communication Range Is Too Short
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 9. FAQ 9.1 Communication range is too short The communication distance will be affected when obstacle exists. Data lose rate will be affected by temperature, humidity and co-channel interference. ... -
Page 21: Welding Operation Guidance
Chengdu Ebyte Electronic Technology Co., Ltd E49-900T20S User Manual 10. Welding operation guidance 10.1 Reflow Soldering Temperature Profile Feature Sn-Pb Assembly Pb-Free Assembly Solder Paste Sn63/Pb37 Sn96.5/Ag3/Cu0.5 Preheat Temperature min （Tsmin） 100℃ 150℃ Preheat temperature max (Tsmax) 150℃ 200℃ Preheat Time (Tsmin to Tsmax)(ts) -
Page 22: Batch Packaging
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 Web: www.ebyte.com Address: B5 Mould Park, 199# Xiqu Ave,Chengdu, Sichuan, China...