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Ebyte E49-400T20D, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co.,Ltd.

E49-400T20D User Manual

Copyright ©2012–2019

，

Chengdu Ebyte Electronic Technology Co.,Ltd.

5

3. Size and pin definition

Pin No.

Pin item

Pin direction

Application

1

M0

Input

（

weak pull-up

）

Work with M1 to decide 4 working modes of module (can be suspended, internal
pull-up resistor).

2

M1

Input

（

weak pull-up

）

Work with M0 to decide 4 working modes of module (can be suspended, internal
pull-up resistor).

3

RXD

Input

TTL UART input, connects to external TXD output pin.

Содержание E49-400T20D

Страница 1: ...E49 400T20D User Manual 433MHz DIP Wireless Module ...

Страница 2: ...PTION 7 5 2 1 Wireless receiving indication 7 5 2 2 Wireless transmission indication 7 5 2 3 Reset and exit sleep mode 8 5 3 4 Notes for AUX 8 5 3 5 Fixed point mode description 8 5 3 6 Broadcast transmission 9 5 3 7 Broadcast address 9 5 3 8 MONITOR ADDRESS 9 6 OPERATING MODE 10 6 1 MODE SWITCHING 10 6 2 TRANSMISSION MODE MODE 0 11 6 3 RSSI MODE MODE 1 11 6 4 SETTING MODE MODE 2 11 6 5 SLEEP MODE...

Страница 3: ... DESIGN 16 9 FAQ 17 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 WELDING GUIDANCE 18 10 1 REFLOW SOLDERING TEMPERATURE 18 10 2 REFLOW SOLDERING CURVE 18 11 RELATED MODEL 19 12 ANTENNA GUIDANCE 19 12 1 ANTENNA RECOMMENDATION 19 13 BATCH PACKAGING 20 REVISION HISTORY 20 ABOUT US 20 ...

Страница 4: ...ransmitted by the module in the air is random Through strict encryption and decryption algorithms the data interception is meaningless the probability of interference is reduced and the reliability and transmission efficiency are improved Besides it is a low cost wireless serial transceiver module 1 2 Features The measured communication distance is up to 1km Maximum transmit power is 100mW softwar...

Страница 5: ...mperature 40 80 Industrial design Operating frequency MHz 410 433 510 Support ISM band Power consumption TX current mA 75 Instant power consumption RX current mA 12 Sleep current μA 0 7 Software is shut down Max Tx power dBm 20 0 Receiving sensitivity dBm 116 117 117 Air data rate is 1 2kbps Air data rate bps 1 2k 2 4k 200k Controlled via user s programming Main parameter Description Remark Distan...

Страница 6: ... definition Pin No Pin item Pin direction Application 1 M0 Input weak pull up Work with M1 to decide 4 working modes of module can be suspended internal pull up resistor 2 M1 Input weak pull up Work with M0 to decide 4 working modes of module can be suspended internal pull up resistor 3 RXD Input TTL UART input connects to external TXD output pin ...

Страница 7: ...ing status wakes up the external MCU During the procedure of self check initialization the pin outputs low level 6 VCC Module power supply positive reference voltage range 2 6V 3 3V DC 7 GND Ground 8 GND Ground 9 GND Ground 10 GND Ground 4 Connect to MCU No Description STM8L MCU 1 The UART module is TTL level please connect with TTL level MCU 2 For some MCU works at 5V DC it may need to add 4 10K ...

Страница 8: ...e start of module s normal work 5 2 AUX description AUX P is used as indication for wireless sending receiving 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 initialization 5 2 1 Wireless receiving indication After receiving the va...

Страница 9: ...t is if any output low condition is met AUX outputs a low level when all low level conditions are not met AUX outputs a high level When the AUX output is low it indicates that the module is busy and the operating mode detection will not be performed when the AUX output is high the mode switching will be completed When users enter other modes from mode 3 sleep mode or during the reset process the m...

Страница 10: ...0xFFFF and the channel to 0x04 When module A is used for transmission same mode transparent transmission mode all receiving module under the 0x04 channel can receive data to achieve the purpose of broadcasting 5 3 8 Monitor Address Example Set the address of module A to 0xFFFF and the channel to 0x04 When module A is used as a receiver it can receive all the data under the 0x04 channel to achieve ...

Страница 11: ...elayed For example In mode 0 the user continuously inputs a large amount of data and switches the mode at the same time The mode switching operation is invalid at this time the module will process all the user data before performing the new mode detection so the general recommendation is Detect the AUX pin output status wait for 2ms after the AUX output goes high before switching When the module i...

Страница 12: ...on all the time and can receive data packets from mode 0 After receiving the data packet and the module AUX outputs a low level it starts sending wireless data through the serial port TXD pin After all wireless data is output through the serial port the module outputs AUX high level 6 3 RSSI Mode Mode 1 Type M0 1 M1 0 Transmitti ng No wireless transmission is allowed the received serial data will ...

Страница 13: ...f and the sleep mode can only be exited through the state switch of M1M0 6 6 Fast communication test Step Description 1 Connect E49 400T20D module to the E49 TBL backplane and then plug into the USB test board E15 USB T2 plug into the computer to ensure that the driver has been installed correctly Plug in the mode selection jumper cap on the USB test board M1 0 M0 0 2 Select 3 3V the module suppor...

Страница 14: ...C3 Send three C3s in hexadecimal format The module returns version information and must be sent continuously 7 1 Factory default parameter Model Factory default parameter value C0 00 00 19 2E 00 Module type Frequency Address Channel Air rate Baud rate Transmitting power E49 400T20D 433MHz 0x0000 0x2E 2 4kbps 9600 20 7 2 Reading operating parameter Command format Description C1 C1 C1 In the setting...

Страница 15: ...2k 001 Air data rate is 2 4k default 010 Air data rate is 4 8k 011 Air data rate is 9 6k 100 Air data rate is 19 2k 101 Air data rate is 50k 110 Air data rate is 100k 111 Air data rate is 200k UART baud rate can be different between communication parties The UART baud rate has nothing to do with wireless transmission parameters won t affect the wireless transmit receive features The lower the air ...

Страница 16: ... make sure the ability of current output more than 100mA and ensure the power supply ripple within 100mV Low power transmission is not recommended due to its low power supply efficiency For example The meaning of No 3 SPED byte The binary bit of the byte 7 6 5 4 3 2 1 0 Configured by users 0 0 0 1 1 0 0 1 Meaning UART parity bit 8N1 UART baud rate is 9600 Air data rate 2 4k Corresponding hexadecim...

Страница 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 ...

Страница 18: ... 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 to ensure that it is between the recommended power supply voltage If the maximum value is exceeded the module will be permanently damaged Please check the stability of power source the voltage cannot fluctuate too m...

Страница 19: ...mperature max Tsmax Maximum preheating temperature 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp Average rising rate 3 second max 3 second max Liquidous Temperature TL Liquid phase temperature 183 217 Time tL Maintained Above TL Time above liquidus 60 90 sec 30 90 sec Peak temperature Tp Peak temperature 220 235 230 250 Aveage ramp do...

Страница 20: ...xible PCB antenna 433M SMA J 2 43 8 9 5mm Built in flexible FPC antenna TX433 JW 5 Rubber antenna 433M SMA J 2 50mm Flexible omnidirectional TX433 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 omnidirectional TX433 XP 200 Sucker antenna 433M SMA J 4 19...

Страница 21: ...logy Co Ltd 20 13 Batch packaging Revision history Version Date Description Issued by 1 0 2020 01 09 Initial version Ren About us Sales hotline 4000 330 990 Tel 028 61399028 Support support cdebyte com Website www ebyte com Address Innovation Center B333 D347 4 XI XIN road High tech district west Chengdu Sichuan China ...

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