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Chengdu Ebyte Electronic Technology Co., Ltd.

E22-400T33S User Manual

Copyright ©2012–2022,Chengdu Ebyte Electronic Technology Co.,Ltd.

10

5.6.3 Configuration procedure of module

Only happened when power-on resetting or exiting sleep mode

5.6.4 Notes for AUX

No.

Description

1

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.

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 high level, the operating mode switch can be effected immediately.

4

When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will reset
user parameters, during which AUX outputs low level.

5

Due to the characteristics of the LoRa modulation method, the information transmission delay is much longer than that of FSK.
It is recommended that customers do not transmit large amounts of data at low airspeeds, so as to avoid communication
abnormalities caused by data loss due to data accumulation.

6 Operating mode

There are four operating modes, which are set by M1 and M0, the details are as follows:

Mode(0-3)

M1

M0

Description

Remark

0 Normal mode

0

0

UART and wireless channel are open, transparent transmission

is on

Support over-the-air configuration via

special command

1 WOR transmitting

mode

0

1

Can be defined as WOR transmitter and WOR receiver

Support wake up over air

2 Configuration mode

1

0

Users can access the registers through the serial port to control

the working status of the module

3 Deep sleep mode

1

1

Module enters sleep mode

Summary of Contents for E22-400T33S

Page 1: ...E22 400T33S User Manual SX1262 433 470MHz 2W LoRa Wireless Module...

Page 2: ...MONITOR ADDRESS 8 5 5 RESET 8 5 6 AUX DESCRIPTION 8 5 6 1 Indication of UART output 8 5 6 2 Indication of wireless transmitting 8 5 6 3 Configuration procedure of module 10 5 6 4 Notes for AUX 10 6 O...

Page 3: ...GN 18 10 FAQ 19 10 1 COMMUNICATION RANGE IS TOO SHORT 19 10 2 MODULE IS EASY TO DAMAGE 19 10 3 BER BIT ERROR RATE IS HIGH 19 11 PRODUCTION GUIDANCE 19 11 1 REFLOW SOLDERING TEMPERATURE 19 11 2 REFLOW...

Page 4: ...he communication allows users to set key that cannot be read greatly improving the user data privacy Wireless parameters configuration sent via wireless instruction packet or read a wireless remote co...

Page 5: ...10 Chances of burn is slim when modules are used in short distance Operating temperature 40 85 2 2 Operating parameter Main parameter Performance Remark Min Typ Max Operating voltage V 3 3 5 0 5 5 4...

Page 6: ...rection Function 1 GND Input Module ground 2 VCC Input Power supply 3 3 5 5V DC 3 AUX Output Used to indicate the working status of the module the user wakes up the external MCU and the Output is low...

Page 7: ...onnect 20 PB3 Input Output NC pins for future development no need to connect 21 3 3V Input Power pin when loading program floated no need to connect 22 SWIM Input SWIM pin when loading program floated...

Page 8: ...gy Co Ltd 7 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 Whe...

Page 9: ...dge 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...

Page 10: ...ronic Technology Co Ltd E22 400T33S User Manual Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 9 data of the module have been transmitted already perhaps the last packet of data is sti...

Page 11: ...switch can be effected immediately 4 When the user switches to other operating modes from mode 3 sleep mode or it s still in reset process the module will reset user parameters during which AUX outpu...

Page 12: ...receiving and sending before entering sleep mode This feature can be used for fast sleep which saves power for example the transmitter module works in mode 0 the user transmits the serial port data 12...

Page 13: ...e registers through the serial port to control the working status of the module 6 5 Deep sleep mode Mode 3 Type M0 1 M1 1 Transmitting Unable to transmit wireless data Receiving Unable to receive wire...

Page 14: ...g address parameters Response C1 starting address length parameters E g 1 Channel is 0x09 command starting address length parameter Send C2 05 01 09 Returen C1 05 01 09 E g 2 Configure module address...

Page 15: ...the same baud rate Both parties must be the same The higher the rate the shorter the distance 04H Read Wr ite REG1 7 6 Sub packet setting 00 240 bytes default 01 128 bytes 10 64 bytes 11 32 bytes 5 R...

Page 16: ...smitting target After the reply function is enabled if the target address is not the module itself the module will forward it once In order to prevent data return back it is recommended to use it in c...

Page 17: ...other mode from mode 3 sleep mode or during the reset process the module resets the user parameters during which the AUX outputs low level Repeater networking rules 1 Forwarding rules the repeater can...

Page 18: ...e following figure shows the E22 400T33S configuration host computer display interface the user can switch to the command mode through M0M1 and quickly configure and read the parameters on computer In...

Page 19: ...interference High frequency digital routing high frequency analog routing and power routing must be avoided under the module If it is necessary to pass through the module assume that the module is sol...

Page 20: ...ase check the power supply source ensure it is in right range voltage higher than max value will damage the module Please check the stability of power source the voltage cannot fluctuate too much Plea...

Page 21: ...re max 6 minutes max 8 minutes 11 2 Reflow soldering curve 12 E22 series Model No Core IC Frequency Hz Tx power dBm Distance km Package Size mm Interface E22 900T22S SX1262 868M 915M 22 5 SMD 16 26 UA...

Page 22: ...3 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 omni...

Page 23: ...Issued by 1 0 2022 1 26 Initial version 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...

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