Eletechsup MT8870 DTMF Decoder Controller Audio Voice Decoding Board Phone Module for_Ardiuno MCU Banana Raspbery pi Due UNO MEGA2560 Nano

Feature

Onboard Complex Frequency Decoder IC MT8870DS
Onboard 5 LED indicators for easy viewing output state
DC Power Supply Voltage:5V(4.5V-5.5V)
Operating Temperature : -40-+85 C
IO Drive : Current Maximum 10mA.

Description

Eletechsup MT8870 DTMF Decoder Controller Audio Voice Decoding Board Phone Module for_Ardiuno MCU Banana Raspbery pi DUE UNO MEGA2560 NANO

Feature :
It is based on 2.4GHz frequency band wireless transparent data-transmission module. Module supports most basic AT commands: baud rate, ID number, frequency settings and inquiries; factory settings; version information. When the module is in AT module, users can use serial-port to issue AT commands to set the module's parameters.
When the module is in transparent data transfer mode, the user transmit data, frame number data module, add packaged rowcount, and then automatically transmit , at reliable range, the module will automatically re-transmit data to ensure successful transmission.

Performance Parameter:
Working voltage: 3.3V-5.5V;
RS232 Interface ( 3.3V/5V TTL level)
Frequency range: 2402~2482MHz
Transmit power: 20dBm(100mw);
Receiver sensitivity: -87dBm;
Operating temperature: -40~+85 c;
Transparent transmission mode baud rate:
2400,4800,9600(Default),14400,19200,38400,57600,115200,12800,25600
AT mode configured baud rate fix is: 9600;
Open ground Transmission distance : 400M

Pinout :
1, VDD:3.3V or 5V power supply ;
2, GND: Power Ground;
3, TXD: serial port output, Ardiuno or USB to serial port RXD;
4, RXD: serial port input, Ardiuno or USB to serial port TXD;
5, CMD: Enter PIN AT mode, active low level;

Application example:
Wireless communication between Ardiuno and PC(Also application with other 3.3V/5V level MCU ,for example: APM APM2 Raspberry pi FPGA CPLD STM32 C8051 PIC AVR MSP430)