Morse Code：
Introduction: The telegraph was first invented by the American Morse in 1844, so it is also called Morse code.
It consists of two basic signals with different intervals: a short dot signal, "*", which reads "Di"; and a long signal, "*", which is held for a certain period of time.
The long signal "-", which is held for a certain period of time, reads "answer" (Da).
Interval time: Tick, 1t; Answer, 3t; Between ticks, 1t; Between letters, 3t; Between words, 5t (customized to a certain unit of time t).
Note: * denotes SMS number, - denotes long signal.
Overview of Morse code decoding and encoding module:
MC310 is a Morse code decoding and encoding module.
The process of sending code: ASCII code is input through the serial port and received by the module and then converted into Morse code, and then converted into audio signals through the 3.5MM audio interface to send out.
Receiving code process: the 3.5MM audio interface is used to convert the received audio signal into Morse code, and then converted to ASCII code through the serial port.
The module can use the audio cable to connect the input and output together, at the same time send data and receive data, the module can once receive serial port 30 data waiting to be issued.
Product Applications:
● Morse code learning;
● Morse code decoding;
● Morse code encoding;
Features: (1) Receive and send data through the serial port.
(2) You can connect the input and output together with audio cable to send and receive data at the same time.
(3) The module can receive 30 data from the serial port at a time waiting to be sent.
(4) The received data is sent out instantly through the serial port.
Driving mode: serial port communication format: baud rate 9600, no parity bit, 8-bit data, 1-bit stop
Module interface:
(1) communication interface P2:
5V: Power positive interface (5V).
GND: Power ground interface.
RXD: the receiving end of the module; connected to the microcontroller (MCU) transmitter TXD
TXD: Transmitter of the module; connected to the MCU receiver RXD
(2) Signal input interface P4: is a 3.5MM audio input interface (input 700Hz~3000Hz).
(3) Signal output connector P5: is a 3.5MM audio output connector (output 1000Hz audio signal).
Adjust the input through RW1 potentiometer (range 700Hz~3000Hz).
Module and wiring block diagram description :
Note: Please do not connect the circuit module directly to the computer's serial port, after the (RS232 to TTL module) to convert the signal to TTL level signals can be connected to the circuit module, otherwise it will damage the module. (RS232 signal is negative 15 volts to positive 15 volts, TTL232 signal is 0 volts to positive 5 volts)
Package:
1pc Morse Code Translator Encoder CW Code Audio Serial Compiler Up to 54 Codes
