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Related Manuals for Ebyte E32-900T20S
Summary of Contents for Ebyte E32-900T20S
- Page 1 E32-900T20S User Manual SX1276 868MHz/915MHz SMD Wireless Module...
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Page 2: Table Of Contents
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual Contents DISCLAIMER ............................3 ....................................4 EATURES OVERVIEW ..........................5 ................................5 1.1 I NTRODUCTION 2.SPECIFICATION AND PARAMETER ..................5 ................................. 5 2.1 L IMIT PARAMETER ..............................6 2.2 O PERATING PARAMETER 3 SIZE AND PIN DEFINITION ...................... - Page 3 Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual ............................15 7.3 R EADING VERSION NUMBER ................................ 15 7.4 R ESET COMMAND ..........................15 7.5 P ARAMETER SETTING COMMAND 8 BASIC OPERATION ........................17 ..............................17 8.1 H ARDWARE DESIGN 9 FAQ ..............................18 ........................18...
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Page 4: Disclaimer
E32-900T20S 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: Features
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual Features Advanced LoRa modulation, with the advantage of long-distance anti-interference; Under ideal conditions, the communication distance can reach 5.5km, and the transmission distance is better than traditional GFSK; Fixed-point transmission, broadcast transmission, channel monitoring;... -
Page 6: Overview
E32-900T20S are widely applied in utility meters, IoT renovation, smart home, etc. The modules feature data encryption and compression. The data transmitted in air features randomness.air Data Rate(Default 2.4kps). E32-900T20S strictly follows design standards of FCC, CE, CCC and meets various RF certification requirements for exporting. 1.2 Application Home security alarm and remote keyless entry；... -
Page 7: Operating Parameter
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual 2.2 Operating parameter Main parameter Performance Remark Typ. Max. Operating voltage（V） ≥5.0 V ensures output power Communication level（V） For 5V TTL, it may be at risk of burning down Operating temperature（℃）... -
Page 8: Size And Pin Definition
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual 3 Size and pin definition Name Direction Features Empty Pin Ground Empty Pin Empty Pin Empty Pin Empty Pin Empty Pin Ground Ground Antenna Ground Ground Ground Ground Ground Input Work with M1 to decide 4 working modes of module (not suspended, if not （weak pull-up）... -
Page 9: Connect To Mcu
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual Input TTL UART inputs, connects to external (MCU, PC) TXD output pin. Output TTL UART outputs, connects to external RXD (MCU, PC) input pin. Used to indicate the working status of the module;... -
Page 10: Function Description
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S 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 or 0x0000, and the channel as 0x04; Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 11: Monitor Address
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual When module is the transmitter (transparent transmission), all modules under channel 0x04 will receive the data, the purpose of broadcast is realized. 5.4 Monitor address For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;... -
Page 12: Indication Of Wireless Transmitting
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual 5.6.2 Indication of wireless transmitting Buffer (empty): the internal 512 bytes data in the buffer are written to the RFIC (Auto sub-packaging). When AUX=1, the user can input data less than 512 bytes continuously without overflow. Buffer (not empty): when ... -
Page 13: Operating Mode
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual For function 1 & function 2 mentioned above, the priority should be given to the one with low level output, which means 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. -
Page 14: Normal Mode (Mode 0)
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual immediately. Then the module will transmit all the data through wireless transmission & go dormancy 1ms later automatically, which reduces MCU working time & save power. Likewise, this feature can be used in any mode-switch. The module will start to work in new mode within 1ms after ... -
Page 15: Power-Saving Mode (Mode 2)
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual Power-saving mode (mode 2) When M1 = 1 & M0 = 0, module works in mode 2 UART is closed, the module cannot receive any serial port data from outside MCU. -
Page 16: Default Parameters
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual 7.1 Default parameters Default parameter values：：C0 00 00 1A 17 44 Transmitting power Model Frequency Address Channel Air data rate Baud rate Parity E32-900T20S 868MHz 0x0000 0x06 2.4kbps 9600 100mW 7.2 Reading operating parameters... - Page 17 Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual Low address byte of module 00H-FFH ADDL （the default 00H） UART parity bit 8N1 (default) UART mode can be different between communication parties 8 E1 8N1 (equal to 00) TTL UART baud rate（bps）...
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Page 18: Basic Operation
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual wireless wake-up time The transmit & receive module work in mode 0, whose delay time is invalid & can 250ms (default) be arbitrary value. 500ms The transmitter works in mode 1 can ... -
Page 19: Faq
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual Please pay attention to the correct connection of the positive and negative poles of the power supply. Reverse connection may cause permanent damage to the module； Please check the power supply to ensure it is within the recommended voltage otherwise when it exceeds the ... -
Page 20: Module Is Easy To Damage
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual 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. -
Page 21: Reflow Soldering Curve
Chengdu Ebyte Electronic Technology Co., Ltd E32-900T20S User Manual 10.2 Reflow soldering curve 11 Package for batch order Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. -
Page 22: 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 Web: www.ebyte.com Address: B5 Mould Park, 199# Xiqu Ave,Chengdu, Sichuan, China...