Wb7fhc morse decoder8/1/2023 ![]() ![]() With a switch I can select the mike or the ‘normal’ input. ![]() 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. 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. 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. With the online Morse code translator, anyone can convert any plain text in English or another language to Morse code and vice versa. The program worked fine but the Tone tune was very small. What is Morse Code Translator Morse Code Translator is a translator that lets anyone translate text to Morse code and decode Morse code to text easily. 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. When this pin is LOW a tone of the set frequency has been detected.In the VERON magazine of November 2015 there was a description of a CW Morse decoder built around an Arduino Nano. Hook up your LCD panel to the Arduino using these pins: LCD pin 1 to GND LCD pin 2 to +5V LCD pin 4 to D7 LCD pin 6 to D6 LCD pin 11 to D5 LCD pin 12 to D4 LCD pin 13 to D3 LCD pin 14 to D2 LCD pin 15 to +5V LCD pin 16 to GND Data from pin 8 of the LM567C will be fed to D8 on the Arduino When this pin is HIGH there is no tone detected. If you don't have a 20x4 (they're really only a few bucks more) you might want to leave out the word wrap and scrolling. Sometimes long words or missed spaces will result in only two words left on your display. Frankly, I don't think scrolling makes sense with only two lines. If you are planning on using a 16x2 you will want to make some changes. This version makes use of the 4 digit parallel method of driving the display. When the bottom line is filled, all lines will scroll up one row and new text will continue to appear at the bottom. If a word extends beyond the 20 column line, it will drop down to the next line. The sketch includes funtions for word wrap and scrolling. This project is built around the 20x4 LCD display. However, if you reset and then send 'CALL ME WOODY' it will match your speed quite quickly. After a reset, the following text is very difficult to lock in on: 'SHE IS HIS SISTER' because there are only two dahs in the whole phrase and they come near the end. The more dahs you send at the beginning the sooner it locks into solid copy. The software tracks the speed of the sender's dahs to make its adjustments. If the tone decoder is not centered on the frequency of the incomming signal, you may have to fine tune the module as you lower the volume. Lowering the volume of the incoming CW can also help. My homebrew prototype CW decoder using an Arduino controller and some terrific open source WB7FHC software. If you are not seeing solid copy, press the restart button on your Arduino. ![]() Apart from being an interesting exercise in Arduino programming, it could be useful for the tired (or lazy) DX'er who needs to keep track of various code transmissions. The first few characters may come out wrong while it homes in on the speed. HAM radio operator and Arduino enthusiast WB7FHC has written a great tutorial on how to program an Arduino to decode Morse code. This module allows you to tune to the frequency of a specific tone while ignoring noice and other tones of different frequencies The program will automatically adjust to the speed of code that is being sent. Details of this module will eventually be posted on line. 1.5 (c) 2014, Budd Churchward - WB7FHC This is an Open Source Project Search YouTube for 'WB7FHC' to see several videos of this project as it was developed.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |