Well after a few problems with the first issue of the PCB the redesigned board has been made. Improvements include a smaller size, smaller USB module, more suitably sized uC

As you can see it is being populated by parts scavenged from the first PCB and is not quite finished. The more astute views will also not the lack of an op amp which will be on a very small board attached tot he back of the sensor and should help reduce some of the noise issues.

The project is still crawling along…