ESP8266-ArtNet-Box

A multifunctional DMX ArtNet Box based on ESP8266

WHAT IT SHOULD DO

sending DMX out of Art-Net packets
supports up to 2 DMX universes
connects to a network via wifi or cable network (W5100)
can open a access point
supports a oled display for control and analizing
enter values via rotary encoder

THINGS TO DO

add a channel editor to change channel values on display for testing purposes.
add functionality for WS28xx led systems
add a web interface

CONNECTION TO A ESP8266

This code depends on a Lolin ESP8266 board using following connections:

OLED display:

Use a 'off the shelf' chinese OLED display with 4 pins: VCC, GND, SCK and SDA.

Connect as follows: VCC: 3,3V GND: Ground SCK: D1 (GPIO5) SDA: D2 (GPIO4)

Rotary Encoder:

Usa a rotary encoder board for arduino (5 pins) or a single rotary encoder with 4 state changes per klick. Connect it with the common pin to GND and connect the 2 signal pins to the ESP. Use 10k pullup resitors to 3,3V on these lines. Connect the push button of the encoder to GND and to the ESP. You can use a 10k pullup if you like.

The arduino rotary encoder board has 5 pins: CLK, DT, SW, + and GND.

Connect as follows: CLK: D3 (GPIO0) DT: D0 (GPIO16) SW: RX (GPIO3) +: 3,3V GND: Ground

If the direction of the rotary encoder is inverse, swap CLK and DT pins.

W5100 ethernet board

Use a W5100 board of your choice. In the current version the W5500 is NOT supported!

Connect as follows:

GND: Ground V+5: 5,0V RST: leave open NSS: D8 (GPIO15) SOK: D5 (GPIO14) MO: D7 (GPIO13) MI: D6 (GPIO12) GND: Ground POE+: leave open POE-: leave open

DMX outputs

Connect your 75176s on following outputs:

Universe 0: TX (GPIO1) Universe 2: D4 (GPIO2)

HOW TO CONTROL

Rotate the encoder to switch through the menus Press the encoder to switch through the displayed items. There is a box on the choosen item. Rotate the encoder to change its value. Press again to switch to the next item. Pressing it at the last item saves all data and exit the edit mode. Double press the button exits the edit mode without saving any item on the page (even you edited one before) Double press on the menu returns to the first page of the menu Long Press on the main menu (page 1) for >3secs resets all settings. Restart the unit to load the default settings.

Display: Top: left: wifi strength - not accurate yet middle: wifi state or ssid right: wifi state in short form: OFF, ERR (Error), AP (AccessPoint) or CL (Client)

Bottom: left: IP address of the unit, subnetmask next to "/". 8 means 255.0.0.0, 24 means 255.255.255.0 (the number is the count of 1s in the address) right: time since starting the unit

Middle: Here you can display individual information and menus: left: you can see the menu number with a headline next to it. This helps navigating through the menus.

1 - Status: (no edit) Here you can see a overview of all Art-Net activity on this node.

Net: the current Art-Net net of this node Sub: the current Art-Net subnet of this node Uni: the current Art-Net univsere of this node. There are two of them, because the node has two outputs. "x" or "tick": are the ArtDmx packets? If yes: display "receiving", if no: display of the time elapsed since the last packet received (or the unit turned on)

2 - Last Art-Net received: (no edit) Here you can see the last received ArtDmx packet, that was addressed to this node. The settings Net, Subnet and Uni of this node have no effect to this display. This functionality is for troubleshooting.

Net: the Art-Net net of last received ArtDmx packet Sub: the Art-Net subnet of last received ArtDmx packet Uni: the Art-Net universe of last received ArtDmx packet Time: the time since last ArtDmx packet was received (or time since turn on)

3 - DMX Channel Viewer Here you can monitor the received dmx channel data for both universes. You can choose between a multi channel view or a single channel view with history graph.