Miniature Frequency Probe measures 1Hz to 5MHz

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https://www.electronics-lab.com/miniature-frequency-probe-measures-1hz-to-5mhz/

David Johnson-Davies shared another great and mini project on his blog. He writes: The Frequency Probe is a handheld tool designed to help you debug your circuits by giving a visual indication of the frequency or voltage at the probe. For a periodic waveform it gives a digital readout of the frequency, with a range […]

Tiniest USB development board with Micronucleus

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https://www.electronics-lab.com/tiniest-usb-development-board-micronucleus/

Development board for the ATtiny84a with USB connector. Pre-loaded with the Micronucleus bootloader compatible with Arduino. DIP version with USB connector of the ATtiny84a. The board can be placed in the middle of the breadboard. Sketches can be uploaded from Arduino using the Micronucleus bootloader. There is an indicator LED to determine if the board […]