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The badge runs on an ATtiny45 and uses three 8×8 ultra-bright LED matrices for scrolling [Madison]’s name. It’s powered by a tiny LiPo battery that is boosted to 5 V. This build really shows ...
If you're a geek you guessed magnets and you are correct. ... The Blue name badge takes 2 batteries and the Red 1 battery; Price: $29.99. Scrolling LED Name Badge II [via Thinkgeek.com] ...
Home; Personal Finance ‘I Don’t Have to Show You Any Stinking Badges’ Companies whose employees or contractors access your property should provide them with proper ID for everyone's protection.