How-To: Shrinkify Your Arduino Projects. One Chip Arduino. TinyLoadr Shield - ATtiny + ATmega programmer from Jeff Murchison. - Don't like your order?
Returns will be accepted within 30 days, provided the product has not been assembled soldered or otherwise damaged by the user. - Got a defective product? Try contacting me first to see if we can resolve the issue. Defective products will be accepted for return / exchange. Any products that have been damaged by improper usage / assembly will not be accepted for return. Gemma - Miniature wearable electronic platform: ID: 1222 - $7.95. Very low power LED firefly. This is my version of an LED firefly, built with what I think is the smallest parts count and drawing the least amount of power that I can.
Here is the entire parts list: 1 ATtiny13a MCU 1 Green LED (diffused lens works best) 1 1 Mohm, 1/8-watt resistor (1/4-watt works also, of course) 1 CR2032 coin-cell battery 1 CR2032 coin-cell battery holder Naturally, the MCU spends most of its time in sleep mode to keep the power drain down. I'm using power-down mode for sleep, then using a watchdog interrupt to bring the MCU out of sleep. Additionally, the MCU does not turn on the LED unless the light level is dark enough.
Trinket - Mini Microcontroller - 3.3V Logic ID: 1500 - $7.95.