Digital lighting controler PIC16F870

Posted on Jul 15, 2012

This unit recieves DMX 512 data and Analogue (0- 10v) data and uses these to phase angle control mains output. Features: DMX 512 data Input. Analogue (0- 10v )DC Input. 4 Output channels. Remotley programmable Interally saved Presets. 3 Modes of operation Digital Lighting Data, Aanlogue Lighting Data and Internal Presets. 3 Dimming Curves ( Linear , S Curve and Switch ). DMX recieve address set on Dip switches from 1 - 512. 7 seg Display shows operation mode, DMX base address and preset being used. Designed to operate on 240Vac @ 50Hz. Auto tracks mains frequency.

Digital lighting controler PIC16F870
Click here to download the full size of the above Circuit.

The Designed is based on the microchip Pic device. The Pic used is the 16F870 a 28 Pin device. running at 20Mhz. The dimming pack controls the power comming out bu enploying phase angle control of the mains. The schematics shows the circuit used for the main board, The display boardis shown here with an explanition here. The Code in the Pic is here and Explained here. The Labels for the outside of the box The Eagle generated Schamatics, Asembley code and Hex file are all contained with in the Zip File Here . Update Oct 2003 - Circuit Digram problem found please add a 10K resistor from each Analogue input to the Pic To Ground. This is required to discharge the internal capasistor in the PIC A2D the Cicruit Diagram has been updated. Update Nov 2003 - New circuit Diagram Draw with Eagle schematics added and new Asembley code added with basic / Advaranced display option. Also To Come soon - A 12Channel Based Lighting Control Based in a 19" Rack unit with LCD display.

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