Traffic cone - kužel

thingiverse

I've set up a track for my B-ROBOTA called the "street corner kužel". Of course, the kužel itself isn't very effective without blinking, so I'm turning to Arduino IDE and ATTINY85 microprocessor now. The device is powered by a CR2032 250 mAh battery (3V) and it's very simple (it only includes a button, battery, LED, microprocessor, two resistors, and one capacitor)... The microprocessor sleeps (pulls about 5uA from the battery), wakes up once every two seconds to check if the button is pressed. If the button isn't pressed, it goes back to sleep again after two seconds - this way we save battery life (up to five years in sleep mode). Of course, you could bypass this by using an interrupt on a certain pin and letting the processor sleep forever until you press the button - I'm lazy to redo it and it doesn't affect the "farmer - village center" function. When the processor wakes up, it checks if the button is pressed, and if it is, it prevents sleeping (sleep mode) and starts blinking the LED light in a sequence (2.5 seconds of darkness followed by three flashes: ---x-x-x----------x-x-x----------). It continues to blink until we press the button again.