The white LEDs in the Charliewatch were probably not the right choice - their forward voltage is 3.0V, so once the 2032 or 2450 battery draws down a little bit they dim and turn off, even though the CC430 CPU will run down to 1.8V.

@qrs you could have a little boost converter driven perhaps even by the micro, but it's too late now huh

@MightyPork I'll make another one with red or amber LEDs, which go down to 2V. Unfortunately the really pretty pink ones are also 3V.

· · Web · 2 · 1 · 0

@qrs ah yeah pink is usually just white with a special filter

Sign in to participate in the conversation

Server run by the main developers of the project 🐘 It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!