This code is designed to make a arduino into a simple Serial DIO Controller. It is usefull for any application requiring TTL digital logic. #define P2 2 //D2 MULTI-PURPOSE #define P3 3 //D3 ...
This is a TTL Data logger that writes the data to an SD-Card. The used hardware is a Arduino UNO and a micro SD-Card adapter (OPEN-SMART microSD Card Adapter). The wiring between the SD-Card adapter ...
At the heart of many amateur radio and other projects lies the VFO, or Variable Frequency Oscillator. Decades ago this would have been a free-running LC tuned circuit, then as technology advanced it ...
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