Printed Circuit BoardIf you would like to have a professionally manufactured printed circuit board for the opentherm gateway, there are three options:
Buy a circuit board onlineNodo-Shop offers an SMD version of the OTGW, featuring an external power supply, and a choice of LAN, wifi, or USB interface.
On eBay, cyril-power offers an OTGW board that is designed to be used with an Orange Pi Zero.
Kiwi electronics sells printed circuit boards, kits, and fully assembled gateways.
VDR Elektronica also offers the OpenTherm Gateway PCB on their web site.
Note: I have no relationship with these sellers and get absolutely no benefits from the PCB's or gateways they sell. So, in case of problems with any item bought online, you will need to get in contact with their customer service.
Buy a circuit board from another userThe following users have indicated they have some left-over boards they are willing to sell:
Let me know if you have some left-over boards from a batch and want to be listed here for other people to get in touch with you.
Order a batch of circuit boardsYou can order a batch of ten circuit boards for only $4.90 (excluding shipping) from seeedstudio.com or for $19.90 at iteadstudio.com. Different shipping options are available that balance speed against economy. The cheapest options for shipping to NL are $10.74 for seeed and $8.46 for itead.
Here is a graphical representation of the gerber files for the circuit board.