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+nodemcu: connect D4 to TX
+ D7 to RXD (the pin that transmits, weird, right?) of UART-RS485
+ G to GND of UART-RS485
+ 3V to VCC of UART-RS485
+plug in nodemcu to computer via usb
+pio run --target upload
+
+SLIP:
+slattach -vdp slip -s 115200 /dev/ttyUSB0
+ifconfig sl0 up
+ip addr add dev sl0 2.0.0.1/8
+use artnet on 2.0.0.1 as input in qlc+, set in artnet config universe to 0, instead of default 1
+
+WIFI:
+add #define DO_WIFI to source and change ssid to connect to in setup()
+use artnet on wifi iface as input in qlc+, set in artnet config universe to 0, instead of default 1
+
+hacks:
+connect D6 to GND to enable flash suppression hack - flash (dmx 255) will be replaced with the last known value instead