pH FeatherWing Assembly
The pH FeatherWing [https://iorodeo.com/products/phfeatherwing] is sold as an
unassembled kit. The kit includes the pH FeatherWing v0.2 board (PCB with all of
the smt components), and a set of through-hole components. These are i) 3-pin
screw terminal connector (blue), ii) 12-pin and 16-pin headers and
