Counting Piggy Bank Piggy Bank lid Counting Piggy Bank Piggy Bank sensor module Coin inserted The WEB sees everything... Weller WSM 1 - teardown Weller WSM 1 - teardown Weller WSM 1 - teardown Weller WSM 1 - teardown Arduino + 'undimmable' LED board Obligatory arduino board PT4115 lowest setting PT4115 full blast Me still pointing at something Me pointing at something Contacts Improvised ISP connector UP/DOWN contacts ATtiny13 board doing PWM and sensing PT4115 driver - modded The switch died, so I put in a LED Weller RT3 pencil Senosor module Sensor module The hidden brain LCD zebra strip Sensor opened up Powered up BSS138 trinity Xmas + snow Xmas + snow Xmas + snow Tubes! V2.0 beta V2.0 beta It started to snow today... It started to snow today... Ah Xmas... the time to Ah Xmas... the time to Ah Xmas... the time to Ah Xmas... the time to Ah Xmas... the time to Ah Xmas... the time to Ah Xmas... the time to