Fan and temperature controller with LCD

The module uses an LM35 sensor for measuring the temperature, it is a pre-calibrated IC with output voltage linearly-proportional to the Centigrade temperature. This is read directly by the internal AVR ADC, and turned into actual degrees with a simple calculation. The fan is powered by an PWM output, giving it variable speed. Set points for the fan and alarm can be adjusted and is saved to EEPROM.

Read more...

Emergency strobe light

The emergency strobe light consists of 33 high intensive 5 mm LEDs and control circuit. It has four sequences, and can be set on a single sequence or to cycle through every fifth second. When selecting a sequence manually it is stored in EEPROM and continues on power-up. If an external controlling unit is plugged in; the internal sequences will stop and the external unit is in control. This makes it possible to synchronize multiple units. LEDs are driven by a PWM output, module is powered by 9-24V.

Read more...

Mood light (RBG) with 100 mA outputs

This simple mood light controller has three PWM controlled channels; red, green and blue. Each capable of delivering 100 mA, or about five LEDs. This can easily be improved by using a more powerful transistor. I’ve used 3x3 LEDs soldered to a tiny circuit board as the light source, and placed them inside a frosted glass. A better solution would be to use a powerful RBG LED. Just remember to use another transistor if you want to use bigger LEDs.

Read more...

Mood light (RGB) controller with 500mA outputs

The mood light controller can control all kinds of RGB light, max 500mA pr. channel. The module has no voltage regulator and therefore needs 5V=, and enough current to drive the circuit and the connected LEDs. It very slowly cycles through different colors, fading one LED up or down leaving the previous LED turned on. The module can power Prolight LEDs, like Mood light using 3W Prolight RGB LED.

Read more...

Warning strobe light controller

The warning lights controller has two PWM driven outputs, that each can handle a load of 3 amps. It has five sequences, and can be set on a single sequence or to cycle through. When selecting a sequence manually it is stored in EEPROM and continues on power-up. Much of the hardware and software is based on the Emergency strobe light project. Can be used to drive the Warning lights with 10mm LEDs project. Powered by: 9-24V.

Read more...