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Display Your Local Air Quality Index (AQI)
-----The Air Quality Index (AQI) is an indicator as to how safe the air is to breath. There are many websites that provide this information, but we wanted a 24x7 visual readout in the house. Our...
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Cheap Electric "Air Duster"
-----We saw this on AliExpress for under $10 and decided to add it to our order. It arrived 5 days later and looked just as described.----Satisfied with it's performance we decided to measure just...
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Quansheng K6 HT CW Software Only Mod
-----For this we used the KD8CEC UV-K5 Version v0.3V firmware found here and flashed it to the Quansheng K6 using the EGZUMER Web Flasher tool. After flashing the firmware we wired a straight key...
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Flex Radio RIT/XIT Control via Encoder Knobs
This is a variant of the Poor Man's Stream Deck project project we did to allow for adjustment of the RIT and XIT values on a Flex Radio. Turns out not having to point the mouse at the somewhat small...
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Logging Ham Radio Repeater Usage with a Baofeng
-----The Austin N5OAK Ham Radio Club Repeater seems to be pretty active. That shouldn't surprise us much because the club has a lot of activities and a lot of enthusiastic members. Still, we wondered...
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Bug Key Morse Code (CW) Simulator with ESP32
-----When is comes to ham radio operators that use Morse code keys each has their favorite and none have just one. Morse keys can differ in many ways, but the bug key is typically the most expensive...
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Poorman's Stream Deck for Flex Radio
-----The Flex Radio 6400 is an amazing state of the art ham radio transceiver with so many modern bells and whistles than no normal human could ever get around to using them all. However, this can...
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Plotting Temperature with the ESP32C3 Dev Module and Node Red
-----Microcontrollers are getting really cheap. They were already cheap, but now they seem crazy cheap. Even with onboard WiFi, Bluetooth, and a small OLED display we picked up this ESP32C3 Dev...
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QRCode Clock with ESP32C3 Dev Module
-----Nothing is more frustrating than needing the time and not having a watch, but watches can be expensive and boring so we programed this ~$2.00 USD ESP32C3 Dev Module with on-board OLED to provide...
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Graphing the Average Speed (WPM) of a Morse Code CQ
----- For ham radio operators that use Morse Code (CW) the Reverse Beacon Network is an amazing tool that does many things. However, one thing we wanted to know was what is the average WPM of the CQ...
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TCS34725 Color Sensing Cube with Arduino
-----Whatever color the TCS34725 sensor "sees" is reproduced on the orb on top of the cube. The switch in front is hardwired to the LED light on the front of the sensor because we found the LED...
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SKCCSkimmer Integration to FlexRadio
-----The Flex Radio 6400 is an amazing state of the art ham radio transceiver with so many modern bells and whistles than no normal human could ever get around to using them all. One fantastic...
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FlexRadio gets Rotary Phone Dial Interface
-----The Flex Radio 6400 is an amazing state of the art ham radio transceiver with so many modern bells and whistles than no normal human could ever get around to using them all. However, this can...
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Is your Reverse Beacon (RBN) Spotting Station Up?
-----The Reverse Beacon Network (RBN) is a system of volunteer-operated CW (Morse Code) skimmers that listen to ham radio bands and automatically report any CW CQ signals they hear. These reports...
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VBand interface to Physical Morse Key
-----What is VBand? It's a virtual CW Band where you can have a virtual Morse Code QSO as well as practice your CW skills. It doesn't require a ham radio rig. It doesn't require a ham radio license....
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Easy Graphing of Temperatures with RasPI and NodeRed
-----After hearing over and over how quick and easy the graphical programming environment for Node-Red was we decided to give it a try with an old Raspberry PI Model B that was 'resting' in a drawer....
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WS2812B LED Ring Clock
-----There are no shortage of DIY clocks on the internet, but inspiration from this Hack a Day article made us think there is room for at least one more. One major different with ours is we didn't...
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DIY: Banana plug to Alligator Clip Adapter
Always a handy thing to have a few of on the bench.-----
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D104 Vintage Mic made Morse (CW) Key
-----Question: What do you do when a ham radio pal gifts you a vintage Astatic D104 power mic and your only operating mode is CW (Morse code)?Answer: You rewire the PTT button, add a blue LED and...
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