filled README.md

2026-07-08 20:30:03 +02:00
parent 330a0983f9
commit 0bdaa532e4
1 changed files with 19 additions and 0 deletions
@@ -1,2 +1,21 @@
 # isolated-switches
 Small PCB that can be directly mounted onto the Raspberry Pi's pin header. Isolating GPIO 24 using an optocoupler.   
 Included is a rust program to to switch on or off a PV inverter based on the voltage of the battery bank.
 ## hardware design
 The hardware design was done using the open source EDA KiCAD 10.0 based on a 2.54mm prototype board.  
 Used components:
 - 2x20 pin socket header
 - 200Ohm metal film resistor (2.5mmx6.3mm)
 - optocoupler PC817
 - output connector: 2-pin JST XH board connector
 - 20x16 hole 2.54mm prototype board
 ## software
 As a sample implementation, there is a rust program included that is switching a PV inverter on and off based on the voltage of the battery bank.  
 The data is read from a database that is updated regularly using [VE.Direct-Text-Reader](https://git.schauaus.at/VE-Tools/VE.Direct-Text-Reader).  
 The actual control the pin is done using the crate [rppal](https://github.com/golemparts/rppal).  
 Developed and tested on a Raspberry Pi 5, with Raspberry Pi OS running rustc and cargo version 1.96.0.