A little update….
Beta boards, dual TEC with LD driver, single TEC with LD driver and single TEC driver are ready for prototyping. System is based on a PIC18F45K22 running @ 64mHz, all embedded I/Os are allocated, RS232 communication is mapped Beta Windows GUI is ready for testing as soon as the boards are here. All TEC-drivers are full bridge (heating/cooling 2 x ±3000mA). LD-Driver runs ultra linear and has lots of headroom. Windows GUI will have data logging of all parameters to Excel spreadsheet.
PCB size 95 x 55mm and 73 x 55mm.
Cheers!