Blinkenlights

Electronics to add blinkenlights and sound to something like an escape room.

Martin Oldfield, 03 Sep 2025

TI HDC1000 Evaluation

Brief notes on the HDC1000, a humidity and temperature sensor from Texas Instruments.

Martin Oldfield, 08 Aug 2015

ADT74x0 temperature sensing

Analog Devices make some nice I²C temperature sensors, including the ADT7420 which is accurate to 0.25̣̣°C. Here’s a user space client for them.

Martin Oldfield, 10 Jun 2013