Ebyte E32-433T33D, User Manual

Page 1: ...E32 433T33D User Manual SX1278 433MHz 2W TTL LoRa Wireless Module ...

Page 2: ...IPTION 7 5 1 FIXED TRANSMISSION HEXADECIMAL 7 5 2 BROADCASTING TRANSMISSION HEXADECIMAL 7 5 6 2 Indication of wireless transmitting 8 5 6 3 Configuration procedure of module 9 5 6 4 Notes for AUX 9 6 OPERATING MODE 10 6 1 MODE SWITCH 10 6 2 NORMAL MODE MODE 0 11 6 3 WAKE UP MODE MODE 1 11 6 4 POWER SAVING MODE MODE 2 11 6 5 SLEEP MODE MODE 3 12 7 COMMAND FORMAT 13 7 1 FACTORY DEFAULT PARAMETERS 13...

Page 3: ...9 Chengdu Ebyte Electronic Technology Co Ltd 2 9 1 COMMUNICATION RANGE IS TOO SHORT 17 9 2 MODULE IS EASY TO DAMAGE 17 9 3 BER BIT ERROR RATE IS HIGH 17 10 PRODUCTION GUIDANCE 18 11 E32 SERIES 18 12 ANTENNA RECOMMENDATION 19 13 PACKAGE FOR BATCH ORDER 19 REVISION HISTORY 19 ABOUT US 20 ...

Page 4: ...advantage of long distance anti interference Built in PA LNA the communication distance can reach 16km under ideal conditions and the transmission distance is better than traditional GFSK etc Support fixed point transmission broadcast transmission channel monitoring Support air wake up ultra low power consumption suitable for battery applications Support FEC forward error correction to improve com...

Page 5: ...L it may at risk of burning down Operating temperature 40 85 Industrial design Operating frequency MHz 410 441 Support ISM band Power consump tion Transmitting current mA 850 1000 1200 Instant power consumption Receiving current mA 11 13 15 Turn off current μA 2 Software is shut down Max Tx power dBm 32 33 34 Receiving sensitivity dBm 145 147 148 Air data rate is 2 4kbps Air data rate bps 0 3k 2 4...

Page 6: ...can be grounded if it is not used 3 RXD Input TTL UART input connect to external TXD output pins Can be configured as drain open circuit or pull up input see parameter Settings 4 TXD Output TTL UART output connect to external RXD input pin Can be configured as drain open circuit or push pull output see parameter Settings 5 AUX Output Used to indicate the working status of the module The user wakes...

Page 7: ...ixed orifice Fixed orifice 15 Fixed orifice Fixed orifice 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTL level 2 For some MCU works at 5VDC M00 M11 AUX should connect to IO port of MCU RX to TXD of MCU TX to RXD of MCU 3 TVS protection and capacitors need to be added outside the power supply it is recommended to add a 22uF low ESR electrolytic capacitor or tantalum capacitor 4 ...

Page 8: ...chnology Co Ltd E32 433T30D User Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 7 5 Function description 5 1 Fixed transmission hexadecimal 5 2 Broadcasting transmission hexadecimal 5 3 Broadcasting address ...

Page 9: ... by M1 and M0 Therefore users need to wait the AUX rising edge as the start of module s normal work 5 6 AUX description AUX Pin can be used as indication for wireless send 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 init...

Page 10: ...checking Within 1ms since AUX outputs high level the mode switch will be completed 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 high level the operating mode switch can be affected immediately When the user switches to other operating modes from mode 3 sleep mode or it s still in reset process the module ...

Page 11: ...e after the transmitting finished Therefore the mode switch is only valid 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 st...

Page 12: ... AUX outputs low level 5ms later the module starts to transmit wireless data through serial port TXD pin After all the wireless data have been transmitted via serial port the AUX outputs high level 6 3 Wake up mode mode 1 When M1 0 M0 1 module works in mode 1 Transmitting The condition of data packet transmission AUX function is the same as mode 0 The only difference is that the module will add pr...

Page 13: ...n mode 3 Transmitting N A Receiving N A Parameter setting This mode can be used for parameter setting It uses serial port 9600 8N1 to set module working parameters through specific 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 lev...

Page 14: ...continuously 5 C4 C4 C4 Send three C4s in hexadecimal format the module will generate a reset and must be sent continuously 7 1 Factory default parameters Type Default parameter values C0 00 00 1A 17 40 Model Frequency Model Frequency Model Frequency Model Frequency E32 433T33D 433MHz 0x0000 0x17 2 4kbps 9600 8N1 2W 7 2 Reading operating parameters Instruction format Description C1 C1 C1 In sleep ...

Page 15: ...n power down 1 ADDH High address byte of module the default 00H 00H FFH 2 ADDL Low address byte of module the default 00H 00H FFH 3 SPED 7 6 UART parity bit UART mode can be different between communication parties 0 0 8N1 default 0 1 8O1 1 0 8 E1 1 1 8N1 equal to 00 5 4 3 TTL UART baud rate bps UART baud rate can be different between communication parties The UART baud rate has nothing to do with ...

Page 16: ...elay time is invalid can be arbitrary value The transmitter works in mode 1 can transmit the preamble code of the corresponding time continuously When the receiver works in mode 2 the time means the monitor interval time wireless wake up Only the data from transmitter that works in mode 1 can be received 0 0 0 250ms default 0 0 1 500ms 0 1 0 750ms 0 1 1 1000ms 1 0 0 1250ms 1 0 1 1500ms 1 1 0 1750m...

Page 17: ...ose to the digital part of the module and routed in the Bottom Layer Assuming the module is soldered or placed over the Top Layer it is wrong to randomly route over the Bottom Layer or other layers which will affect the module s spurs and receiving sensitivity to varying degrees It is assumed that there are devices with large electromagnetic interference around the module that will greatly affect ...

Page 18: ...om 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 9 2 Module is easy to damage Please check the power supply source ensure it is 2 0V 3 6V voltage higher than 3 6V will damage the module Please check the stability of power source the voltage cannot fluctuate too much Please make sure antistati...

Page 19: ... K E32 433T20DC 433M 20 3 0 3k 19 2k DIP 21 36 SMA K E32 433T20S1 433M 20 3 0 3k 19 2k SMD 17 25 5 Stamp E32 433T20S2T 433M 20 3 0 3k 19 2k SMD 17 30 IPEX Stamp E32 400T20S 433 470M 20 3 0 3k 19 2k SMD 16 26 IPEX Stamp E32 433T30D 433M 30 8 0 3k 19 2k DIP 24 43 SMA K E32 433T30S 433M 30 8 0 3k 19 2k SMD 25 40 3 IPEX Stamp E32 868T20D 868M 20 3 0 3k 19 2k DIP 21 36 SMA K E32 868T20S 868M 20 3 0 3k ...

Page 20: ...na 433M 2 0 52 SMA J Short straight omnidirectional TX433 JZG 6 Rubber Antenna 433M 2 5 62 SMA J Short straight omnidirectional TX433 JW 5 Rubber Antenna 433M 2 0 50 SMA J Flexible omnidirectional TX433 JWG 7 Rubber Antenna 433M 2 5 70 SMA J Flexible omnidirectional TX433 JK 11 Rubber Antenna 433M 2 5 110 SMA J Flexible omnidirectional TX433 JK 20 Rubber Antenna 433M 3 0 200 SMA J Flexible omnidir...

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