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Chengdu Ebyte Electronic Technology Co., Ltd.

E22-400T30D User Manual

Copyright ©2012–2018,Chengdu Ebyte Electronic Technology Co.,Ltd.

17

1

Fixed point transmission mode

0

Transparent transmission mode

default

---------------------------------------

5

Enable repeater
1

Enable repeater function

0

Disable repeater function(default)

--------------------------------------

4

LBT enable

(monitor before

transmission)

1

Enable

0

Disable

default

--------------------------------------

3

WOR transceiver control

1

WOR transmitter

The

module

receiving

and

transmitting functions are turned on, and a

wake-up code is added when transmitting data.

Receiving is turned on.

0

WOR receiver

default

The module is unable to transmit data

and works in WOR monitoring mode. The

monitoring period is as follows (WOR cycle),

which can save a lot of power.

---------------------------------------
2

1

0

WOR cycle

000

500ms

001

1000ms

010

1500ms

011

2000ms

100

2500ms

101

3000ms

110

3500ms

111

4000ms

---------------------------------------

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 conjunction with the fixed

point mode. That is: the target address is different

from the source address.

----------------------------------------

When enabled, wireless data will be monitored

before it is transmitted, which can avoid interference

to a certain extent, but may cause data delay.

----------------------------------------

Valid only for mode 1.

After the WOR receiver receives the wireless data

and outputs it through the serial port, it will wait for

1000ms before entering the WOR again. Users can

input the serial port data and return it via the wireless

during this period. Each serial byte will be refreshed

for 1000ms. Users must transmit the first byte within

1000ms.

---------------------------------------------

Valid only for mode 1.

Period T = (1 + WOR) * 500ms, maximum 4000ms,

minimum 500ms

The longer the WOR monitoring interval period, the

lower the average power consumption, but the

greater the data delay

Both the transmitter and the receiver must be the

same (very important).

07H

Write

CRYPT_

H

Key high byte (default 0

Write only, read returns 0

Used for user encryption to avoid intercepting

airborne wireless data by similar modules.

The module will internally use these two bytes as a

calculation factor to transform and encrypt the

over-the-air wireless signal.

08H

Write

CRYPT_

L

Key low byte (default 0)

80H~

86H

Read

only

PID

Product information 7 bytes

Product information 7 bytes

7.3 Factory default parameter

Factory default parameters

C0 00 00 62 00 00

Содержание E22-400T30D

Страница 1: ...E22 400T30D User Manual SX1268 433 470MHz 1W LoRa Module...

Страница 2: ...IZE AND PIN DEFINITION 7 4 CONNECT TO MCU 8 5 FUNCTION DESCRIPTION 9 5 1 FIXED TRANSMISSION 9 5 2 BROADCASTING TRANSMISSION 9 5 3 BROADCASTING ADDRESS 9 5 4 MONITOR ADDRESS 10 5 5 RESET 10 5 6 AUX DES...

Страница 3: ...GISTER READ AND WRITE CONTROL 14 7 1 COMMAND FORMAT 14 7 2 REGISTER DESCRIPTION 15 7 3 FACTORY DEFAULT PARAMETER 17 8 REPEATER NETWORKING MODE 18 9 CONFIGURATION INSTRUCTIONS ON COMPUTER 19 10 HARDWAR...

Страница 4: ...Chengdu Ebyte Electronic Technology Co Ltd E22 400T30D User Manual 13 E22 SERIES 22 14 ANTENNA RECOMMENDATION 23 15 PACKAGE FOR BATCH ORDER 24 ABOUT US 24...

Страница 5: ...running simultaneously Users to set their own communication keys and cannot be read which greatly improves the confidentiality of user data RSSI for evaluating signal quality improving communication...

Страница 6: ...s industrial grade remote control Health care products Advanced Meter Reading Architecture AMI Automotive industry applications 2 Specification and parameter 2 1 Limit parameter Main parameter Perform...

Страница 7: ...n Max Tx power dBm 29 5 30 0 30 5 Receiving sensitivity dBm 146 147 148 Air data rate is 2 4kbps Air data rate bps 0 3k 2 4k 62 5k Controlled via user s programming Main parameter Description Remark D...

Страница 8: ...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...

Страница 9: ...Ltd 8 6 VCC Input Power supply 3 3 5 5V DC 7 GND Input Ground 8 Fixed hole Fixed hole 9 Fixed hole Fixed hole 10 Fixed hole Fixed hole 11 Fixed hole Fixed hole 4 Connect to MCU No Description STM8L M...

Страница 10: ...gy Co Ltd 9 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...

Страница 11: ...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 operatin...

Страница 12: ...UART data of the module have been transmitted already perhaps the last packet of data is still in transmission 5 6 3 Configuration procedure of module Only happened when power on resetting or exiting...

Страница 13: ...wireless the new working mode can be switched after the transmission is completed If the module receives the wireless data and transmits the data through the serial port it needs to finish transmissi...

Страница 14: ...the user s MCU s operation convenience and can reduce the workload of the entire system as much as possible improve system efficiency and reduce power consumption 6 2 Normal mode Mode 0 Type M0 0 M1...

Страница 15: ...Set register Command C0 starting address length parameters Response C1 starting address length parameters E g 1 Channel is 0x09 command starting address length parameter Send C0 05 01 09 Returen C1 05...

Страница 16: ...e and low byte Note When the module address is FFFF it can be used as the broadcast and monitor address that is the module will not perform address filtering 01H Read Wr ite ADDL ADDL default 0 02H Re...

Страница 17: ...itting mode to read the register Register 0x00 Current ambient noise rssi Register 0X01 rssi when the data was received last time Current channel noise is dBm RSSI 2 Command format C0 C1 C2 C3 startin...

Страница 18: ...erent from the source address When enabled wireless data will be monitored before it is transmitted which can avoid interference to a certain extent but may cause data delay Valid only for mode 1 Afte...

Страница 19: ...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 forward data in both directions between two...

Страница 20: ...e following figure shows the E22 400T30D 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...

Страница 21: ...en designing the power supply circuit for the module it is often recommended to reserve more than 30 of the margin so the whole machine is beneficial for long term stable operation The module should b...

Страница 22: ...horter the distance 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 antenn...

Страница 23: ...erage ramp up 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 te...

Страница 24: ...X433 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 gain TX433 XPL 100 Sucker antenna 433M SMA J 3 5 18 5cm...

Страница 25: ...100cm Sucker antenna high gain 15 Package for batch order About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please...

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