Reply To: Availability of PCB control board and Opto Sensor boards. Forum › Buy & Sell › Buy zone › Availability of PCB control board and Opto Sensor boards. September 4, 2017 at 2:44 pm #1107 Martin Barr Hi Trent, Where do you order your boards from? I have just screwed my first board up, lost an SMD pad when removing a badly solderd LED. Would love to know if I can order in the UK Martin