Printed Circuit Board

If you would like to have a professionally manufactured printed circuit board for the opentherm gateway, there are three options:
  1. Buy a circuit board or even a fully assembled unit from a webshop.
  2. Buy one from another user who has some boards left over from a batch they ordered.
  3. Have your own batch made to order

Buy a circuit board online

Nodo-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.
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 user

The following users have indicated they have some left-over boards they are willing to sell:

User Country Boards Remarks
Bart NL 9 Shipping outside NL possible, I can also program the PIC for you

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 boards

You can order a batch of ten circuit boards for only $4.90 (excluding shipping) from or for $19.90 at 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.


  • Download the opentherm gateway gerber files
  • Go to Services at and order the Fusion PCB Service.
  • Click on the Browse... button and select the file you just downloaded.
  • Select PCB Dimensions of: 10cm Max*10cm Max ( +$15.00 ) and add it to your shopping cart.
  • Complete the ordering process.


  • Go to OPEN PCB->PCB prototyping at ITead Studio
  • Choose whether you want "2Layer Green PCB 10cm x 10cm Max" or "2Layer Color PCB 10cm x 10cm Max" and click on "Add to cart"
  • Select the desired options and click "Add to cart"
  • Complete the ordering process
  • You will receive an order confirmation mail with a unique order number
  • Download the opentherm gateway gerber files and save them using a filename consisting of the order number, dimension ,color, thickness, surface finish and quantity. For example: O100003734 10by10 Green 1.6mm HASL
  • Send the zip file as an attachment to, mentioning the order number in the subject of the mail.

Here is a graphical representation of the gerber files for the circuit board.