ATTINY13

Two microcontroller regulators for fans

Two microcontroller regulators for fans

This device allows to reduce the noise from cooling fan. It turn off the fan or reduces the rotation speed depending on the temperature of the radiator. Also the device beeps when temperature exceeds a threshold. There are two variants of device for fans of different power.

The first variant is designed to control 12-volt computer fan, and has been fully implemented on the SMD-elements:

Mood Lamp on ATTiny13

Moodlamp on ATTINY13

Mood lamp is a LED RGB lamp that changes the color of light at random. There are a lot of mood lamps projects in the Internet and usually they use relatively "big" microcontrollers. I wanted to make a lamp based on simply ATTiny13 microcontroller.

The circuit of the device is very primitive and shown in the figure below:

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