Posts Tagged ‘morse code’

Ham Radio HT turns CW (Morse) transceiver

Monday, May 27th, 2019

Ham radio HT CW transceiver project from Really not much explanation needed; just connect as shown above.  This project uses an electronic keyer, but a simple straight key/oscillator combo could also be used.  Oh... and you will also need to know Morse Code.

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The K7TMG HF Morse code temperature beacon

Monday, April 23rd, 2018

AA7EE published a new build, a little temperature beacon: This was a fun little project – and it gave me an idea for a future one. Sometimes, I find that the more complex undertakings, which require more planning, can get to the point that they “take me over” somewhat. At...

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Modified Heathkit HD-1410 electronic keyer

Monday, May 30th, 2016

Dilshan Jayakody writes: HD-1410 is quiet popular iambic keyer which is manufactured around 1970's by Heathkit. The original HD-1410 keyer is designed using 5 commonly available 74LS series TTL ICs and 8 transistors. Other than iambic operation it has an option to adjust sidetone frequency and support for (external) single-paddle...

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Bringing a vintage telegraph into the digital age

Thursday, April 7th, 2016

Kyle Gabriel writes: I recently inherited a key on board (KOB) telegraph that my late grandfather used to practice Morse code with when he was a kid (Figure 1). A little bit of curiosity of how it would work and a little bit of displeasure from seeing it sit and...

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Audible Morse code to text message converter

Monday, April 21st, 2014

Dilshan Jayakody writes: Morse View is an open source software project to convert audible Morse codes to text messages. This application is capable to convert Morse codes from wave files or from the audio line/microphone inputs. Conversion from Morse code to text can perform based on amplitude and frequency decomposition...

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MSP430 based wireless temperature sensor

Tuesday, May 22nd, 2012

Toxic239 shared his wireless temperature sensor project based on the MSP430 microcontroller. It uses a 14.089 MHz carrier frequency which is modulated using Morse code, outputting "CALLSIGN T<TEMP> 73". The source files are available in the forum. For an upcoming low altitude party balloon flight :D we had to put...

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Arduino Morse Code generator

Tuesday, December 6th, 2011

Denver writes that he has created a Morse Code generator, and posted a tutorial in my blog about how it is done. His tutorial begins with an explanation of how Morse Code is organized and proceeds to explain the process of writing an Arduino sketch to produce the sequences of...

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Posted in Arduino, code, tutorials | 2 Comments »

Bluetooth Morse keyboard assists the disabled

Tuesday, August 2nd, 2011

In an effort to assist computer users with disabilities limiting their keyboard dexterity, the crew at Zunkworks developed this wireless Morse code based keyboard interface device. The user keys in the desired characters using the "dot" and "dash" buttons on the left of the board and the Arduino based device...

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Posted in Arduino, RF, wireless | No Comments »

TI launchpad as morse keyer

Friday, February 11th, 2011

echOs built a CW(Morse code) transmitter using  a TI launchpad with a minimal amount of components. Only capable of low power transmitting, this would be use full for finding that lost high altitude payload, or fox hunting. Via: Hack a Day

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Posted in MSP430, wireless | No Comments »

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