The basic idea is that it’s possible to measure a capacitor’s capacitance using two microcontroller ... used as a hidden touch sensor that works through an enclosure’s wall by using similar ...

The title says it all – this article describes a microcontroller-compatible current sensor module you can build yourself, using an inexpensive 8-pin chip as an ‘active shunt’ for measuring ac/dc ...

The latest in a long line of DIY camera projects from the ... Indeed, Singh appears to have used an IMX219 sensor from a Raspberry Pi camera module for his working prototype and notes that ...