Sling + Sinter on ESP32. Probably not production quality yet, but ehh yolo
Export the ESP-IDF envs:
. path/to/esp-idf/export.sh
Then build:
idf.py build
idf.py flash -p /dev/ttyUSBx
On the first boot (or after 10 WiFi connection failures, or on button press on GPIO 37), esp-source will go into AP mode, with SSID "esp-source xxxx" (where xxxx is the last two octets of the base MAC addr) and passphrase being the base MAC addr in lowercase.
In essence, if your ESP32 has the base MAC address 1F:0E:93:8B:10:F4, you'd want to look out
for SSID esp-source 10f4 and connect to that network with passphrase 1f0e938b10f4.
After connecting, head over to 192.168.4.1 and configure your WiFi credentials.
The page you'll see will have:
- the generated Sling secret
- WiFi configuration
- SSID: self explanatory
- Authmode: Open, WPA2-Personal, WPA2-Enterprise/802.1x with PEAP/MSCHAPv2. WEP/WPA is technically
possible, but we don't allow that because you shouldn't be using WEP/WPA in current year.
- WPA3 should work as well, but I haven't had the chance to test it out.
- Validate CA: only shows up with WPA2-Enterprise. At the moment, you can't upload a new CA cert, but it'll use the DigiCert Global Root CA by default (for auth01.nw.nus.edu.sg).
- Identity: only shows up with WPA2-Enterprise. Basically, the username for 802.1x.
- Password: shows up with WPA2-Personal or WPA2-Enterprise. Self-explanatory.
After submitting, you'd have to restart the ESP32 because I'm too lazy to make it Just Work^tm.
Just use it like an EV3 bot. Add a new bot with the Sling secret you (hopefully) copied earlier and run your program.