I just finished up my high vacuum gauge/controller. Its probably 4 or 5 on the diy difficulty scale, but it works great and has better features then the expensive name brand controllers. Here’s a few pictures of the setup. I use an arduino mega and some mks 901 active micro pirani sensors. You can pick up the sensors on ebay for $40-$60 all day long. It currently can support 2 sensors and can switch on or off equipment if you want it to. Although, i’m not sure why i added that feature. I dont think ill use it at all. I’d be willing to post a small write up if people are interested. I’d also be willing to release the alpha code for anyone that doesnt have coding skills. The alpha code only has support for one sensor and no error handling. Really basic, but should be enough for most peoples needs. I dont have time to do a full how to, but i can try to answer questions as best as i can.
