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Chengdu Ebyte Electronic Technology Co., Ltd.

E78-900M22S

User manual

Copyright ©2012–2021

，

Chengdu Ebyte Electronic Technology Co.,Ltd.

1

E330-400T13S User Manual

433/470MHz 20mW wireless module

Содержание E330-400T13S

Страница 1: ...Chengdu Ebyte Electronic Technology Co Ltd E78 900M22S User manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 1 E330 400T13S User Manual 433 470MHz 20mW wireless module ...

Страница 2: ...ITCH 10 6 2 NORMAL MODE MODE 0 11 6 3 RECEIVING MODE MODE 1 11 6 4 CONFIGURATION MODE MODE 2 11 6 5 DEEP SLEEP MODE MODE 3 11 7 REGISTER READ AND WRITE CONTROL 12 7 1 INSTRUCTION FORMAT 12 7 2 WORKING PARAMETER READING 12 7 3 VERSION NUMBER READ 12 7 4 RESET COMMAND 13 7 5 PARAMETER SETTING INSTRUCTION 13 7 6 FACTORY DEFAULT PARAMETERS 14 8 HOST COMPUTER CONFIGURATION INSTRUCTIONS 15 9 HARDWARE DE...

Страница 3: ...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 ...

Страница 4: ...you can get started quickly without complicated configuration so that it can be used immediately 1 2 Features Small size 16 26mm Low power consumption LDC ultra low power consumption receiving mode Support transparent transmission and fixed point transmission Single point wake up The module can support low power single point wake up to solve the problem of false wake up at the same frequency and r...

Страница 5: ...ceive current mA 6mA Regular receipt Sleep current uA 1 6 Maximum output power dBm 12 13 13 Receiving sensitivity dBm 119 2Kbps Air speed bps 2K 2K 25K Multi level adjustable main parameters describe Remark Reference distance 2 5km Send length 58 Byte Maximum transmission bytes in a single time Cache capacity 80Byte Software actual debugging Modulation FSK Communication Interface UART 8N1 8E1 EO1 ...

Страница 6: ...1 Input very weak pull up Cooperate with M0 to determine the 4 working modes of the module Can not be suspended if not used it can be grounded 7 RXD Input TTL serial port input connected to the external TXD output pin 8 TXD Output TTL serial port output connected to the external RXD input pin 9 AUX Output Used to indicate the working status of the module the user wakes up the external MCU and outp...

Страница 7: ...round 20 GND Module ground 21 ANT antenna 22 GND Module ground 4 Connection diagram No Brief description of the connection between the module and the single chip microcomputer the above figure takes the STM8L single chip microcomputer as an example 1 The wireless serial port module is TTL level please connect with TTL level MCU 2 For some 5V microcontrollers it may be necessary to add 4 10K pull u...

Страница 8: ...configurable Sending mode When the module sends data it can automatically load the wake up code corresponding to the LDC cycle Both sender and receiver need to configure the same LDC cycle 5 2 Single point wakeup The module has a single point wake up function which can effectively suppress the problem of false wake ups between devices with the same frequency and different addresses in the internal...

Страница 9: ...s transmission or whether it has received wireless data that has not been sent out through the serial port or whether the module is in the process of initializing self checking 5 5 Matters needing attention No AUX considerations 1 The above function 1 and function 2 output low level priority that is if any one of the output low level conditions is met AUX will output low level When all low level c...

Страница 10: ...itching can only be effective when AUX outputs 1 otherwise the switching will be delayed 2 For example the user continuously inputs a large amount of data and performs mode switching at the same time the switching mode operation at this time is invalid the module will process all user data before proceeding to the new mode detection So the general suggestion is check the output status of the AUX p...

Страница 11: ...The wireless receiving function of the module is turned on and the wireless data will be output through the serial port TXD pin after receiving the wireless data 6 3 Receiving mode mode 1 Type When M0 1 M1 0 the module works in mode 1 Send When the LDC period is 0 data can be sent which is equivalent to mode 0 otherwise data cannot be sent Receive The module can periodically wake up to receive dat...

Страница 12: ...urns the saved parameters which must be sent continuously 3 C2 Working parameters Send C2 5 bytes in hexadecimal format Working parameters 6 bytes in total must be sent continuously not saved after power failure 4 C3 C3 C3 Three C3s are sent in hexadecimal format and the module returns version information which must be sent continuously 7 2 Working parameter reading Instruction format Detailed des...

Страница 13: ...munication parties can be different The baud rate of the communication parties can be different The serial port baud rate has nothing to do with wireless transmission parameters and does not affect the wireless transceiver characteristics The lower the air speed the longer the distance and the longer the sending time The wireless transmission rate in the air must be the same for both parties 4 CHA...

Страница 14: ...umber 3 The binary bits of the byte 7 6 5 4 3 2 1 0 Specific value user configuration 0 0 0 1 1 0 0 0 Representative meaning Serial port parity 8N1 The serial port baud rate is 9600 The air speed is 1 2k Corresponding hexadecimal 1 8 7 6 Factory default parameters Type Factory default parameter value C0 00 00 10 52 34 Module model Frequency Address Channel Air speed Baud rate Serial format Transmi...

Страница 15: ...de the module address needs to be converted by conversion 9 Hardware design It is recommended to use a DC stabilized power supply to supply power to the module and the power ripple coefficient should be as small as possible and the module must be reliably grounded Please pay attention to the correct connection of the positive and negative poles of the power supply Reverse connection may cause perm...

Страница 16: ...structure has a great impact on the performance of the module Make sure that the antenna is exposed and it is best to be vertically upward When the module is installed inside the case a high quality antenna extension cable can be used to extend the antenna to the outside of the case The antenna must not be installed inside the metal shell which will greatly reduce the transmission distance 10 Comm...

Страница 17: ...e module 12 Antenna Guide 12 1 Antenna recommendation Antennas are an important role in the communication process and often inferior antennas will have a great impact on the communication system Therefore our company recommends some antennas as supporting our company s wireless modules with excellent performance and reasonable prices SKU Type Frequency Hz Interface 增益 dBi 高度 mm 馈线 cm 功能特点 TX433 NP...

Страница 18: ...enna TX490 XPL 10 0 Sucker antenna 470 490M SMA J 3 5 120 100 Small Sucker antenna Revise history Version Revision date Revision description Maintenance man 1 0 2021 8 23 initial version Linson 13 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 info cdebyte com...

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