Hi all, I read with pleasure that there are a few people interested in this topic.
I will preface this by saying that I tend to use Homekit at home because it is much easier for my parents, consequently I have been using the Unreality repository to be able to command my unit.
Further premise: what I have made does not work on the software side, probably because the version of Homespan (the Homekit framework for ESP32) has changed and along with it the authentication part, plus Unreality does not have time to update everything so I am here with a really nice but not working harware. I, unfortunately, do not have the ability to update it properly because I am not familiar with the Homespan environment.
I am, therefore, pleased to share with you the PCB I designed in the hope that it will be of help to someone.
Here the last version of this project on GitHub: FUJI ATOM INTERFACE
Here I put a kind of BOM:
x1 10k Resistor: Yageo Thin-Film Resistor SMD, 10kΩ, 0805 (2012M), ±0.1%, 0.125W
[RS-Code: 198-5588] [Constructor Code: RT0805BRD0710KL]
x1 10uF Cap: Kemet MLCC, 0805 (2012M), 10μF, ±10%, 25V cc, SMD, X5R
[RS-Code: 891-9791] [Constructor Code: C0805C106K3PACTU]
x1 JST Connector 3-Pin: JST S3B-ZR (LF)(SN)
[RS-Code: 762-0774]
x1 LIN Transceiver: Microchip MCP 2025-330E/P Reichelt.com
x2 Header 4-Pin: Samtec TSW-104-07-G-S-LL Samtec.com
x1 Header 5-Pin: Samtec TSW-105-07-G-S-LL Samtec.com
x1 (4.5V-24V) to (1.8-12V) DC-DC Adjustable Mini Buck Converter: Amazon.it
I hope you are pleased with it
