Noiseplug – rca plug that plays chiptunes

Do you remember those first 8 bit computers and video game consoles? Do you remember how beautiful music they were able to play? This unusual device is a combination of modern technology and charm of 90’s. A seemingly simple plug, hiding a very small attiny10 microcontroller and two watch batteries inside – plays 2 minutes long Chiptune track, after plugged into the amplifier input.

Continue reading

Nie-zwykła żarówka – RGB

The “not-ordinary bulb”, as title say, typical glass and metal bulb with electronic inside. Powered from miniature AC-DC converter – i have used that one from 230-5V USB chargers – it has enough power (about 500mA) for few RGB leds. Next is Attiny13 (SOIC8 package) based RGB driver, it not only can change colors, but has 3 modes and an automatic color and mode saving to eeprom memory – so after power up you always will see last seen mode and color.

Continue reading

Interactive mug coaster

Interactive mug coaster, thanks to analog temperature sensor LM35 and uC builded-in analog-digital converter, device can read temperature from standing on it glass. Device calculates temperature and smoothly light-up our drink with slowly changed RGB colours. When temperature is under 20*C then displayed colors are cold, and when temperature is above 28*C then colors are hot. When nothing stands on device (temperatures from 20*C to 28*C) then it automatically swich off. Fusebits are: 4,8Hz internal clock, not divided by 8. Supply voltage is stabilized by 1117 type stabilizer to 3.6V. The red LED requires lower voltage, and current on that…

Continue reading