Ebyte E32(915T30S) User Manual Download Page 20

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Chengdu Ebyte Electronic Technology Co,;Ltd

E32-915T30S user manual

，

Chengdu Ebyte Electronic Technology Co.,Ltd.

E32-400T20S

SX1278

433M 470M

0.3k~19.2k

SMD

16 * 26

UART

E32-915T30S

SX1276

915M

0.3k~19.2k

SMD

25 * 40.3

UART

E32-868T30S

SX1276

868M

0.3k~19.2k

SMD

25 * 40.3

UART

E32-433T30S

SX1278

433M

0.3k~19.2k

SMD

25 * 40.3

UART

E32-433T20S2T

SX1278

433M

0.3k~19.2k

SMD

17 * 30

UART

E32-868T30D

SX1276

868M

0.3~19.2k

DIP

24 * 43

SMA-K

E32-915T30D

SX1276

915M

0.3~19.2k

DIP

24 * 43

SMA-K

E32-170T30D

SX1278

170M

0.3k~9.6k

DIP

24 * 43

SMA-K

E32-868T20D

SX1276

868M

0.3~19.2k

DIP

21 * 36

SMA-K

E32-915T20D

SX1276

915M

0.3~19.2k

DIP

21 * 36

SMA-K

E32- 433T20DC

SX1278

433M

0.3k~19.2k

DIP

21 * 36

SMA-K

E32- 433T30D

SX1278

433M

0.3k~19.2k

DIP

24 * 43

SMA-K

E32-433T27D

SX1278

433M

0.3k~19.2k

DIP

24 * 43

SMA-K

E32-433T20S1

SX1278

433M

0.3k~19.2k

SND

17 * 25.5

SMA-K

12 Antenna recommendation

The antenna is an important role in the communication process. A good antenna can largely improve the

communication system. Therefore, we recommend some antennas for wireless modules with excellent performance and
reasonable price.

Model No.

Type

Frequency

Interfac

Gain

dBi

Height

Cable

Function feature

TX915-XP-100

Sucker antenna

915M

SMA-J

3.5

25cm

100

Sucker antenna, High gain

TX915-JK-20

Rubber antenna

915M

SMA-J

210mm

Flexible &omnidirectional

TX915-JK-11

Rubber antenna

915M

SMA-J

2.5

110mm

Flexible &omnidirectional

TX915-JZ-5

Rubber antenna

915M

SMA-J

50mm

Short straight &omnidirectional

12.1 Antenna Selection

Factory default welding of 0R resistance is shown in the figure (left). The antenna interface is IPEX. If you need to

change the antenna interface into a stamp hole, please change the 0R resistance as shown in the figure above (right)

Summary of Contents for E32(915T30S)

Page 1: ...E32 915T30S User Manual SX1276 915MHz 1W SMD Wireless Module ...

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

Page 3: ...c Technology Co Ltd E32 915T30S user manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 2 12 ANTENNA RECOMMENDATION 19 12 1 ANTENNA CHOOSING 19 13 PACKAGE FOR BATCH ORDER 20 REVISION HISTORY 21 ABOUT US 21 ...

Page 4: ...n The data transmitted in air features randomness air Data Rate 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 915T30S strictly follows design standards of FCC and meets various RF certification require...

Page 5: ...er Main parameter Performance Remark Min Typ Max Operating voltage V 3 3 5 0 5 2 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 900 915 931 Support ISM band Power consumption Transmitting current mA 600 Instant power consumption Receiving current mA 21 Turn off current μA 5 Soft...

Page 6: ...MT Connector 2 54mm Size 25 40 5 mm Antenna IPEX stamp hole 50 ohm impedance 3 Size and pin definition No Name Direction Function 1 GND Input Ground 2 VCC Input Power supply 3 3 5 5V DC 3 AUX Output To indicate module s working status wakes up the external MCU During the procedure of self check initialization the pin outputs low level Can be configured as push pull output can be suspended ...

Page 7: ...ut Ground 6 M1 Input weak pull up Work with M0 to decide 4 working modes of module not suspended if not used could be grounded 7 M0 Input weak pull up Work with M1 to decide 4 working modes of module not suspended if not used could be grounded 11 ANT output High frequency signal output 50 ohm characteristic impedance 12 GND Ground 13 GND Ground 14 GND Ground 18 NC Input output can be suspended 19 ...

Page 8: ...yright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 7 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 resistor for the TXD AUX pin 5 Function description 5 1 Fixed transmission ...

Page 9: ...es under channel 0x04 the purpose of monitor is realized 5 5 Reset When the module is powered AUX outputs low level immediately conducts hardware self check and sets the operating mode based on user s parameters During the process the AUX remains low level After the process completed the AUX outputs high level and starts to work as per the operating mode combined by M1 and M0 Therefore users need ...

Page 10: ...han 512 bytes continuously without overflow Buffer not empty when AUX 0 the internal 512 bytes data in the buffer have not been written to the RFIC completely If the user starts to transmit data at this circumstance it may cause overtime when the module is waiting for the user data or transmitting wireless sub package When AUX 1 it does not mean that all the UART data of the module have been trans...

Page 11: ...et process the module will reset user parameters during which AUX outputs low level 6 Operating mode There are four operating modes which are set by M1 and M0 the details are as follows Mode 0 3 M0 M1 Mode introduction Remark 0 Normal 0 1 UART and wireless channel are open transparent transmission is on The receiver must work in mode 0 or mode 1 1 Wake up 1 0 UART and wireless channel are open the...

Page 12: ...in any mode switch The module will start to work in new mode within 1ms after completing present mode task which enables the user to omit the procedure of AUX inquiry and switch mode swiftly For example when switching from transmitting mode to receiving mode the user MCU can go dormancy before mode switch using external interrupt function to get AUX change so that the mode switch can be realized T...

Page 13: ...om outside MCU Hence the function of wireless transmission is not available for the module working in this mode Receiving In mode 2 it is required the data transmitter works in mode 1 The wireless module monitors the preamble code at regular time Once it gets the preamble code it will remain as receiving status and waiting for the completion of receiving the entire valid data package Then the AUX ...

Page 14: ...ecimal format The module returns the version information and they must be sent in succession 7 1 Default parameters type Default parameter values C0 00 00 1A 17 44 Model Frequency Address Channel Air data rate Baud rate Parity Transmittin g power E32 915T30S 915MHz 0x0000 0x0F 2 4kbps 9600 8N1 1W 7 2 Reading operating parameters Instruction format Description C1 C1 C1 In sleep mode M0 1 M1 1 User ...

Page 15: ...not save the parameters when 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 r...

Page 16: ...h pull outputs RXD pull up inputs 0 TXD AUX open collector outputs RXD open collector inputs 5 4 3 wireless wake up time The transmit receive module work in mode 0 whose delay 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...

Page 17: ...ed to the Top Layer and the copper is spread on the Top Layer of the module contact part well grounded it must be close 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 i...

Page 18: ... 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 antistatic measure are taken when installing and using high frequenc...

Page 19: ...p rate 3 second max 3 second max Liquidous Temperature TL Liquid phase temp 183 217 Time tL Maintained Above TL Time below liquid phase line 60 90 sec 30 90 sec Peak temperature Tp Peak temp 220 235 230 250 Aveage ramp down rate Tp to Tsmax Aveage ramp down rate 6 second max 6 second max Time 25 to peak temperature Time to peak temperature for 25 max 6 minutes max 8 minutes 10 2 Reflow soldering c...

Page 20: ...43 SMA K E32 433T27D SX1278 433M 27 5 0 3k 19 2k DIP 24 43 SMA K E32 433T20S1 SX1278 433M 20 3 0 3k 19 2k SND 17 25 5 SMA K 12 Antenna recommendation The antenna is an important role in the communication process A good antenna can largely improve the communication system Therefore we recommend some antennas for wireless modules with excellent performance and reasonable price Model No Type Frequenc...

Page 22: ...S E32 400T20S huaa 1 30 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 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 in...

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