LED shipment from electron.com   Even with overnight shipping from Prague these are least expensive LEDs with consistent quality control.

  How to set up a breadboard circuit for ATtiny45 to blink five LEDs in sequence.     BREADBOARD CONNECTIONS ATtiny Pin 0 to LED positive (signal, white) ATtiny VCC (+) to power positive (+, red) ATtiny GND (-) to power negative (-, black) LED negative to resistor (breadboard connection) Resistor to negative power (-, black) repeat for Pin 1, […]

  Red LEDs are electron hogs. They will always be the first to glow and even prevent other LEDs from illuminating.     When designing your circuits be sure to isolate the red LEDs from other colors otherwise you’ll have a darkwad in the final design.   read more on LEDs at wikipedia

  I’ve been thinking the eTextile Lounge deserves a new photo, but I love this one so much!    

  left to right: 3mm Flat Top UV 5mm Pink White Quadrate 3mm Pink 1.8 mm Green    

How to set up a breadboard circuit for ATtiny45 to blink one LED. BREADBOARD CONNECTIONS Connect Power to ATtiny Power positive to ATtiny VCC (+, red) Power negative to ATtiny GND (-, black) Connect LED LED positive to ATtiny Pin 0 (signal, white) LED negative to resistor Resistor to negative power (-, black)   CODE Upload the following code to […]