The hardware

Because of his qualification as an electronics technician for systems and appliances, Eric not only had the suitable idea, but was also able to plan, build, and test the SLC according to my specifications. Here is a brief overview of the most important technical data:

  • Dimensions: 26 x 23 x 8 mm (1.02 x 0.91 x 0.32 inch)
  • Weight (without connectors): 4.65 g (0.16 ounce)
  • Processor: Atmel ATmega 328P, 8 MHz, 2 KByte RAM, 32 KByte Flash
  • Power supply: 2 Goldcaps of 0.47 Farad each
  • Input voltage: 6 to 20 Volt
  • Wiring is effected by means of ground (which is important for multi-colored LEDs, as these need a shared anode (+))
  • 3 electrical connectors for flexible incorporation into the vehicle

The software

The SLC Manager enables the user to configure 14 channels, both singly and in groups. Channels can be turned on or off and they can also be dimmed via a user interface. The glowing intensity can be adjusted by percentage. Channels may blink or pulsate.

Channels can be grouped together to create chaser lights or complex operation lights. These effects may then be triggered by a timer, by reaching a certain threshold voltage, or by randomization. Even a succession of several effects on the same channel is possible. The user can adjust all these values as he sees fit.

The programmer behind this software is Jan Schreiber. He managed to wrap the SLC’s complex possibilities into a user-friendly interface. In so doing Jan made the SLC come to life.