We really did it! 25 boards are ordered and confirmed. This includes assembly at PCBWay. We will only have to solder the batteries and the TVS diode which wasn't available there. Wish us luck that the design proves to be flawless. It should be - it is called V2.0 for a reason. Yet I need to apologize that I couldn't keep the $25 price tag. Including taxes and shipping from Hong-Kong your fair share of the costs will be $40 – with all the risk at our side. Without the generous sponsoring from PCBWay it would be $50. But hey! This is a tracker controller that could run a 100 m2 tracker or more and it includes all the required sensors without any extra sensor cabling. And once we have the open source hardware files online, anyone can order it for that price directly from PCBWay or wherever.

For me this is a great day: High precision solar tracking control can be regarded as a solved problem!

This doesn’t mean that there is nothing left to do. Ermanno is designing a probe card board for upload and testing right now. I will have to figure out the test routine and print the jig that will hold all the boards. Probably we will make those parts open source too. Finally I will have to perfect the tracking with the new sensors. The magnetic sensor has less noise but the tilt sensor more than the MPU9250. This will be easy compared to the work performed. Finally we will make efforts to let people know. A good rank within the hackaday contest would certainly help. And of course we will tell our partners in the CPV community.