One of the byproducts of this project is a small real-time OS, which is ment to run on embedded platforms. It is based on fixed priority scheduling and includes some nice accessories, so one does not always have to reinvent the wheel for every new project.
## UV Light
### Driver Extension Board
This PCB is made to fit the [Nucleo-F103RB](http://www.st.com/en/evaluation-tools/nucleo-f103rb.html)
development board from STM. Features:
- 64 LED driving stages
- 6.4 A and 24 V max. input (0.1 A per stage)
- 0.2 A max. and 350 mW dissipation max. per stage
- 10 Bit DAC to steer the driver
- Optional potentiometer to steer the drivers
- Control-loop for constant current
- Feedback amplification to get a high current resolution
- I2C header
- SPI header
- 2 rotary encoders and 1 tactile switch
* 64 LED driver stages.
* 6.4 A (0.1 A per stage) and 24 V max. input.
* 0.2 A max. and 350 mW dissipation max. per stage. Stages can be left floating if unused without
the threat of damaging the device.
* 10 Bit Digital-to-Analog Converter (DAC) to steer the driver combined with feedback amplification
to achieve a tremendously fine resolution.
* Optional potentiometer to set the current.
* Control loop to guarantee the desired current and respond quickly to changing the setpoint.
* 2 rotary encoders and 1 tactile switch.
* I2C header.
* SPI header.
@ -41,7 +48,12 @@ development board from STM. Features:
3.3 V in order to achieve higher currents different resistor values have to be
