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Your first exposure to electrical engineering - the bread board. Who knew it would bring so much frustration? This is your …
This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer.
Check out these big 10mm through-hole LEDs! The opaque epoxy package causes these LEDs to have a soft, diffuse glow.
The TLP290-4 is an optoisolator transistor from Toshiba.
TL;DR: He's done it all
The BlueSMiRF v2 is now available with or without headers attached, along with a new Soldering Kit featuring the PINECIL soldering iron.