Code for Wi-Fi access point and clients for my LED rollup banner project 'SnipDrop'. http://snippetupperlaser.com
- Ableton Live (or any other DAW) sends out MIDI
- Qlc+ receives MIDI and has mappings to a bunch of functions, matrices etc.
- ESP32 #1 is Access Point, opens up Wi-Fi
SnipDrop - Laptop with Ableton and Qlc+ as well as the other two ESP32 are on the AP's Wi-Fi.
- Qlc+ sends out Artnet to fixed IPs of all 3 ESPs.
- ESPs use FastLED to get alight.
// Configure IP addresses of the local access point
IPAddress local_IP_AP(192, 168, 1, 22); // C strip
IPAddress local_IP_C1(192, 168, 1, 31); // A strip
IPAddress local_IP_C2(192, 168, 1, 32); // L strip
Receive data from multiple boards: https://randomnerdtutorials.com/esp-now-many-to-one-esp32/
Copy secrets.h_template and rename to secrets.h, fill in SSID and Password for ESP32 Wi-Fi.
Developed and tested with
- FastLED version 3.5.0
- ArtnetWifi version 1.5.1
Try typing it, don't copy. There might be invisible chars.
When typing the password didn't fix the issue, re-flashing the MCU with the option Tools / Erase All Flash Before Sketch Upload: Enabled in Arduino IDE helped. This will probably help for other weird issues as well, in case sth's gone sideways on the dev board.
Go to System Settings => Wi-Fi => SnipDrop Details => TCP/IP => Renew DHCP Lease => Asks if unsaved changes shall be applied (even if nothing has been changed). For some reason, it doesn't renew when clicking Apply, so click Don't Apply and enjoy your IP address.
Via terminal, it should work with sudo ipconfig set en0 DHCP (given that en0 is your device interface).