Raspberry pi hat

Powering via type-c and having a separate USB CAN adapter is frustrating. Do everything with a simple "hat".

CAN

• MCP2515T-I/SO
• TCAN1057AVDDFRQ1
• Termination

/boot/firmware/config.txt
# canbus
dtoverlay=mcp2515-can0,oscillator=8000000
dtoverlay=spi-bcm2835-overlay

sudo apt install can-utils
sudo systemctl start systemd-networkd
sudo systemctl enable systemd-networkd

$ cat /etc/systemd/network/can.network
[Match]
Name=can0

[CAN]
BitRate=500000
RestartSec=100ms

[Link]
ActivationPolicy=up

$ systemctl enable systemd-networkd

EEPROM

whatever the hat standard requires...

Power supply

• Low voltage shutdown?
• AP63301WU-7
  • can only do 3A, this will require USB current limiting

Serial port

• Connector for lidar module