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by jorritvdven
Wed Nov 05, 2014 3:11 pm
Forum: Opentherm Gateway Forum
Topic: Opentherm Gateway
Replies: 338
Views: 327814

Re: Opentherm Gateway

Hello everyone, Yesterday evening I've built an OTGW using a kit bought from opentherm-gateway.com. After building the power supply part of the PCB I connected it to the mains and found out the 7805 was actually generating a 6.5V voltage instead of 5V. Because I suspected the 7805 wasn't functioning...

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