Home brew ESP32 security panel with 4 channel relay, 19 channel GPIO, bluetooth, wifi, ethernet, screw terminals

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#1

Hey guys,

For the past few months I have been working on a PCB board which assembles some popular modules into one security panel. I am sharing this project and hope you guys like it.

Some of the components/modules used in this projects are:

  • wireless-tag WT32-ETH01 Ethernet module
  • MCP23017 IO expansion module
  • generic 4 channel relay
  • generic 3.3V 5V Power Supply Module
  • Terminal connectors

In the end, the product is an ESP32 security panel with 4 channel relay, 19 channel GPIO, bluetooth, wifi, ethernet, screw terminals. Compared to WiFi, ethernet connection is much more secure and reliable. It also cut’s the network delay.

Assembled Board:

Board_20210531131300
Board_202105311313001500×2000 1.15 MB

For more information, please visit my GitHub page.

2 Likes
#2

I would be interested!

#3

Hi John,

Thanks a lot for your interest! I sent you a message about more details.

Allen

#4

what are the relays used for?

#5

looks like they are used to toggle inputs… nvm. lol

#6

They’re used to control garage doors and siren.

#7

Hello there!
I would be interested in building this myself, do you have the PCB-Build Files?
Thank you in advance!

#8

Good morning
I’m very interested in it

#9

Hi, due to interference issues(lack of input isolation), I don’t recommend my project any more. Please see this post for my latest setup. Amazing ESPHome/ESP32 security/controller board!.

#10

Hi there, due to interference issues(lack of input isolation), I don’t recommend my project any more. Please see this post for my latest setup. Amazing ESPHome/ESP32 security/controller board!.