mongoose/examples/rp2040/pico-rndis-device/README.md
2023-12-13 17:24:52 -03:00

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# Remote MQTT Device on an RP2040
Your headless Raspberry Pi Pico-based hardware can also be a remote gadget when you connect it to your computer via USB
For the USB specifics, see this related tutorial at https://mongoose.ws/tutorials/rp2040/pico-rndis-dashboard/
See this tutorial to control your device: https://mongoose.ws/tutorials/mqtt-dashboard/
For this to work, you need your computer to act as a router (gateway) and NAT for your device.
## Linux setup
Enable "masquerading"; the quick and simple options are:
``` bash
sudo iptables --flush
sudo iptables --table nat --flush
sudo iptables --delete-chain
sudo iptables --table nat --delete-chain
# Do masquerading
sudo iptables -t nat -A POSTROUTING -o yourifc -j MASQUERADE
# enable routing
sudo echo 1 > /proc/sys/net/ipv4/ip_forward
```
Where `yourifc` is the interface that is connected to your network
## MacOS setup