Morse code decoding and encoding module

Overview:

MC310Is a Morse code decoding and encoding modules.

Hair code process:Through the serial inputASCIIAfter the module receives the code is converted into Morse code , and then converted to an audio signal through3.5MMAudio Interface issued.

Closing procedure code:With3.5MMAudio interface to the received audio signal into Morse code , and then turnASCIIIssued by the serial code .

This module can be used to input and output audio cables together , send data and receive data at the same time , the module can receive serial once30Data waiting to be sent .

Applications:

learn Morse code ;

Morse code decoding ;

Morse code encoding ;

Technical parameters:

Features : ( 1 ) receive and send data through the serial port .( 2 ) can be used to input and output audio cable connected together , send data and receive data simultaneously .( 3 ) a receiver module 30 serial data waiting to be sent .( 4 ) real-time data received through the serial port to send out.

Drive mode: serial port communication Format: 9600 baud, no parity , 8 data bits, 1 stop

Module interfaces:( 1 ) Communication Interface P2:5V: positive power supply Interface (5V).GND: Power to the interface .RXD: Receive end module ; connected microcontroller (MCU) sending end TXDTXD: sending end module ; connected microcontroller (MCU) receiving terminal RXD

( 2 ) the signal input port P4: a 3.5MM audio input interface ( input 700Hz ~ 3000Hz)..

( 3 ) signal output interface P5: is 3.5MM audio output interface ( 1000Hz audio output signal ) .

Adjust the input ( range 700Hz ~ 3000Hz) by RW1 potentiometer.

Module and wiring block diagram :

Note: Please do not put the circuit module is connected directly to the computer's serial port to go through (RS232TurnTTLModule ) signal into theTTLLevel signals can only be connected to the circuit module , otherwise it will damage the module. (RS232Signal is negative15Volts positive15V, TTL232Signal is0Volts positive5V )

Morse code

Description : telegraph was first used by American Morse1844In the invention , it is also known as Morse code .

It consists of two basic signal and different time intervals : the short point signal"*"Read"Of"(Di) ; Maintaining a

Long signal given time" - "Read"Answer"(Da).

Interval: drops,1t; A, 3t; Ticking between, 1t; Letters between, 3t; The word among, 5t( Customize a unit of timet).

Note:*Said SMS number,-Said long signal

Here isDecoding coded (54 )

Letter

Digital long code