Resources and information about the WaveShare line of NFC-Powered Passive E-Ink / E-Paper modules, complete with teardown pictures and some development tips.
How to extend VR cables without experiencing tracking issues and glitches, and what solutions are available, such as USB extenders.
My first programming and electronics project: a wireless water meter for an outside stream. There are two Arduino units that communicate over 2.4Ghz using the inexpensive nRF24L01+ radios, and send information about the water level of the outside stream, temperature, and humidity. Click the picture above for the full project writeup.