@qntris wrote:
Hello guys,
I have an old Paradox Spectra 1727 alarm system and wanted to add it to my HomeAssistant setup so that I can arm/disarm it via the app/automation instead of using the physical keyboard.
The board lacks special serial I/O ports as in SP4000, SP5500, SP6000 and other models. However, I wondered whether I could use the “Service Keypad” serial pins (check the picture below), to control it:
My assumption is that if one can hook a keyboard to these pins, why shouldn’t an ESP8266 WiFi module mimic the same? Anyone knows whether these pins can actually be used for passing commands to the board or only serve logs collection purposes?
I have checked the following projects but they require newer board and I would like to first check whether I could use the current one (which may eventually require tweaking the sketch a bit):
Let me know if you think that the this board and the “Service Keypad” pins will work? Has anyone tried it?
Thank you in advance for your help!
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