A standalone USB Temperature Logger. No driver or software needed. 2 months logging time, 30 000 timestamped temperature logs.
pickandplace.wordpress.com
Schematics and firmware: https://pickandplace.wordpress.com/2012/05/11/designing-a-simple-and-cheap-temperature-logger-part-6-schematics-pcb-and-source-code/
Post time: Aug-20-2017