---
# System prepended metadata

title: Switching board
tags: [Avionics, FAR2023]

---

# Switching board
###### tags: `Avionics`

## Features
- Provide several channels for different voltage output.
- Programmable on/off switch for each channel.
- Easy access through individual sockets.
- A manual switch for main power.
- An indicator for each channel.
- Inspection of igniters.

## Voltage channel
- VCC output 6 channels
- 5V output 4 channels
- 3V3 output 4 channels
- Arbitrary output 2 channels

## Bill of Material
- PCF8575 x1
- PH-2.0 x16
- buck converter x6
- slide switch x1
- IRLML6402 x16
- 1k resistor x16
- LED 

## Development log
### 22/11/13
1. Single port for detecting and triggering igniter.
![](https://i.imgur.com/SvPkq9R.png =50%x)

### 22/11/23
1. 123
![](https://i.imgur.com/oMGnR5y.png =50%x)
