Return '-' //if button press more than 0. Return '.' //if button press less than 0.3sec, it is a dot If (signal_len > 50) //to account for switch debouncingĬode += readio() //function to read dot or dash

Signal_len = t2 - t1 //time for which button is pressed Lcd.backlight() // Turn on the backligt lcd.noBaklight() to turn it off Int buttonState = 0 // variable for reading if key is pressed String code = '' //string in which one alphabet is storedĬonst int keyPin = 2 // the number of the straight key pin Int inputPin = 2 //input pin for push button Unsigned long signal_len,t1,t2 //time for which button is pressed LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE) // Set the LCD I2C address PROGRAM TO DECIPHER MORSE CODE USING A PUSH BUTTON AND DISPLAY IT ON THE SERIAL MONITORĪUTHORS: PINAKI SADHUKHAN AND PRIYANKA SADHUKHAN MORSE CODE DECODING PORTION IS BASED OFF THIS CODE. The schematic was found on internet.* THIS SITE HAS THE LIBRARY USED FOR THE I2C LCD ALSO A GOOD TUTORIAL

With a switch I can select the mike or the ‘normal’ input. Endless Run Game Using LCD Display & Arduino By Technoesolution Arduino Project. The schematic (made by Joost, PE1RCD) can be downloaded here.įor easy use I added a electret microphone and mount it in the back of the enclosure. Homebrew Arduino CW (Morse) Decoder & 4 Line LCD Display - Cheap. Suitable for electronic enthusiasts DIY projects. After that, the frequency range was from 580-1200 Hz, much more in common to a CW signal.Īdded to the decoder was a key function with a 4060 side-tone generator and a LM386N amplifier. Made of high quality electronic components, stable and reliable performance. So a changed the resistor in series with the 22K potmeter from 3K3 to 10K. I found that the range was from 800-3300 Hz which I find to large. Decoder CW - A homemade morse code decoder project, providing a detailed schematic. CW Decoder with Arduino - If you want to build a cw decoder without using other active component. The program worked fine but the Tone tune was very small. With the decoder now working I started looking for solutions to some of the shortcomings that I had identified. CW Decoder Project - W5UXH version of OZ1JHM Morse Code decoder project. I tested it with an Arduino program called ‘cw_foxhunt’ which you can find here. I liked the project and built it in a home made enclosure made from PCB.

In the VERON magazine of November 2015 there was a description of a CW Morse decoder built around an Arduino Nano.

Arduino cw decoder project