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Dilbert66 / esphome-vistaECP

This is an implementation of an ESPHOME custom component and ESP Library to interface directly to a Safewatch/Honeywell/Ademco Vista 15/20 alarm system using the ECP interface and very inexpensive ESP8266/ESP32 modules .
GNU Lesser General Public License v2.1
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what to do with grounds? #90

Closed freaker2112 closed 1 year ago

freaker2112 commented 1 year ago

I'm pretty new to circuit design, for the gnd lines that are separate from the gnd on the esp8266, do i have to ground those to something outside the circuit, ie. the metal box my vista20p resides in, or do they have to be grounded separately?

sorry for the noob question!

Dilbert66 commented 1 year ago

Just tie them together. that's it. No other external connection.