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This is the Beta board. A very crappy job of etching. The production board will be factory made This will do for now. Past the experimenting stage, it needs to be tested in situ.
I have incorporated the ground planes for the MOSFET pins as well as separating digital and analog ground sources adding 3 adjustable power sources for dew heaters and an experimental 3.3V external supply for the Teensy/Arduino, as well as a 5V supply. Cooling and heating off the same board.
One side of the Teensy has all the analog pins with a third hole for decoupling capacitors to analog ground for sensor inputs.
All ground connections are grouped on the ground planes according to digital or analog inputs.
The board and case clear the battery door. The case will be clamped to the camera base through the tripod mount hole and fixed to the heatsink for rigidity with double sided tape. The MOSFET is located so that it can contact the main heatsink.
Eventually the case will accommodate camera and dithering control - unguided widefield setup.
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