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E32-433T20S1 User Manual

SX1278 433MHz 100mW SMD Wireless Module

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Summary of Contents for E32-433T20S1

Page 1: ...E32 433T20S1 User Manual SX1278 433MHz 100mW SMD Wireless Module ...

Page 2: ... wireless transmitting 9 5 6 3 Configuration procedure of module 10 5 6 4 Notes for AUX 10 6 OPERATING MODE 11 6 1 MODE SWITCH 11 6 2 NORMAL MODE MODE 0 12 6 3 WAKE UP MODE MODE 1 12 6 4 POWER SAVING MODE MODE 2 12 6 5 SLEEP MODE MODE 3 13 7 COMMAND FORMAT 13 7 1 DEFAULT PARAMETERS 13 7 2 READING OPERATING PARAMETERS 14 7 3 READING VERSION NUMBER 14 7 4 RESET COMMAND 14 7 5 PARAMETER SETTING COMMA...

Page 3: ...te Electronic Technology Co Ltd E32 433T20S1 user manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 2 12 ANTENNA RECOMMENDATION 20 13 PACKAGE FOR BATCH ORDER 21 REVISION HISTORY 22 ABOUT US 22 ...

Page 4: ...oduction use modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited The information contained herein is provided as is and EBYTE assumes no liability for the use of the information No warranty either express or implied is given including but not limited with respect to the accuracy correctness reliability and ...

Page 5: ...Default 2 4kps The encryption decryption algorithm makes data interception meaningless And the data compression enables shorter transmitting time and lower rate of being interfered which increased the reliability and transmitting efficiency E32 433T20S1 strictly follows design standards of FCC CE CCC and meets various RF certification requirements for exporting 1 2 Features Communication distance ...

Page 6: ...perating voltage V 2 3 5 0 5 5 5 0 V ensures output power Communication level V 3 3 For 5V TTL it may be at risk of burning down Operating temperature 40 85 Industrial design Operating frequency MHz 410 441 Support ISM band Power consumptio n Transmitting current mA 110 Instant power consumption Instant power consumption Receiving current mA 14 Turn off current μA 4 Software is shut down Max Tx po...

Page 7: ...tion Function 1 M0 Input weak pull up Work with M1 to decide 4 working modes of module not suspended if not used could be grounded 2 M1 Input weak pull up Work with M0 to decide 4 working modes of module not suspended if not used could be grounded 3 RXD input TTL UART inputs connects to external MCU PC TXD output pin Can be configured as open drain or pull up input 4 TXD output TTL UART outputs co...

Page 8: ...tputs low level Can be configured as push pull output suspending is allowed 6 VCC input Power supply 2 3 5 2V DC 7 GND input Ground 8 GND Output High frequent signal 9 ANT output Antenna access point high frequent signal 10 GND input Ground 11 GND input Ground 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTL level 2 For some MCU works at 5VDC it may need to add 4 10K pull up resi...

Page 9: ...transmission 5 3 Broadcasting address For example Set the address of module A as 0xFFFF 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 4 Monitor address For example Set the address of module A as 0xFFFF and the channel as 0x04 ...

Page 10: ...nd receive buffer and self check 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 5 6 2 Indication of wireless transmitting Buffer empty the internal 512 bytes data in the buffer are w...

Page 11: ...AUX outputs low level if none of the low level condition is met AUX outputs high level 2 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 3 After switching to new operating mode it will not work in the new mode immediately until AUX rising edge lasts for 2ms If AUX stays on the hi...

Page 12: ...alid when AUX outputs 1 otherwise it will delay For example in mode 0 or mode 1 if the user inputs massive data consecutively and switches operating mode at the same time the mode switch operation is invalid New mode checking can only be started after all the user s data process completed It is recommended to check AUX pin out status and wait 2ms after AUX outputs high level before switching the m...

Page 13: ...dule working in mode 0 can only be received by the module working in mode 0 or 1 Receiving The wireless receiving function of the module is on the data packet transmitted from the module working in mode 0 mode 1 can be received After the data packet is received the AUX outputs low level 5ms later the module starts to transmit wireless data through serial port TXD pin After all the wireless data ha...

Page 14: ...ific instruction format pls refer to parameters setting for details Notes When the mode changes from stand by mode to others the module will reset its parameters during which the AUX keeps low level and then outputs high level after reset completed It is recommended to check the AUX rising edge for user 7 Command format In sleep mode Mode 3 M1 1 M0 1 it supports below instructions on list Only sup...

Page 15: ...atures 7 4 Reset command Instruction format Description C4 C4 C4 In sleep mode M0 1 M1 1 User gives the module instruction HEX format C4 C4 C4 the module resets for one time During the reset process the module will conduct self check AUX outputs low level After reset completing the AUX outputs high level then the module starts to work regularly which the working mode can be switched or be given an...

Page 16: ...on channel 00H 1FH correspond to 410 441MHz 4 0 channel 410M CHAN 1M default 17H 433MHz 5 OPTIO N 7 Fixed transmission enabling bit similar to MODBUS In fixed transmission mode the first three bytes of each user s data frame can be used as high low address and channel The module changes its address and channel when transmit And it will revert to original setting after complete the process 0 Transp...

Page 17: ...hexadecimal 1 A 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 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 with...

Page 18: ... on the performance of the module It is necessary to ensure that the antenna is exposed preferably vertically upward When the module is mounted inside the case use a good antenna extension cable to extend the antenna to the outside The antenna must not be installed inside the metal case which will cause the transmission distance to be greatly weakened 9 FAQ 9 1 Communication range is too short The...

Page 19: ...bit error rate is high 10 Production guidance 10 1 Reflow soldering temperature Profile Feature Curve characteristics Sn Pb Assembly Pb Free Assembly Solder Paste Solder paste Sn63 Pb37 Sn96 5 Ag3 Cu0 5 Preheat Temperature min Tsmin Min preheating temp 100 150 Preheat temperature max Tsmax Mx preheating temp 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp ...

Page 20: ...33M 470M 20 3 0 3k 19 2k SMD 16 26 UART E32 915T30S SX1276 915M 30 8 0 3k 19 2k SMD 25 40 3 UART E32 868T30S SX1276 868M 30 8 0 3k 19 2k SMD 25 40 3 UART E32 433T30S SX1278 433M 30 8 0 3k 19 2k SMD 25 40 3 UART E32 433T20S2T SX1278 433M 20 3 0 3k 19 2k SMD 17 30 UART E32 868T30D SX1276 868M 30 8 0 3 19 2k DIP 24 43 SMA K E32 915T30D SX1276 915M 30 8 0 3 19 2k DIP 24 43 SMA K E32 170T30D SX1278 170...

Page 21: ... 2 43 8 9 5mm Soft inside FPC soft antenna TX433 JW 5 Rubber antenna 433M SMA J 2 50mm Flexible omnidirectional TX433 JWG 7 Rubber antenna 433M SMA J 2 5 75mm Flexible omnidirectional TX433 JK 20 Rubber antenna 433M SMA J 3 210mm Flexible omnidirectional TX433 JK 11 Rubber antenna 433M SMA J 2 5 110mm Flexible omnidirectional TX433 XP 200 Sucker antenna 433M SMA J 4 19cm 200cm Sucker antenna High ...

Page 22: ...Chengdu Ebyte Electronic Technology Co Ltd E32 433T20S1 user manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 21 13 Package for batch order ...

Page 23: ...0 2018 01 22 Updating E32 868T20D E32 868T30D E32 915T20D E32 915T30D E32 170T30D huaa 1 40 2018 05 24 Updating antenna option huaa 1 50 2018 10 11 Manual dividing huaa 1 60 2020 04 13 Ren 1 70 2021 3 11 Pin diagram correction 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 ques...

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