Smart-button

Simple shield for Nodemcu v3 with three cherrymx buttons. The different buttons can control Elgato lights or Hue Lights. This project came forward out the necesity of having a button to control a Elgato keylight without having to use their app.

Usage

Start by setting up source/secrets.h with your wifi credentials and bridge ip-address if you want to add Hue lights. Adjust your smart-button.ino as you wish to use, below some information on setting up the different lights.

Elgato Keylight

Controlling a Elgato keylight can be done with the following;

// connect with light in setup
Light * keyLight = new ElgatoLight("http://elgato-key-light-air-1857.local:9123/elgato/lights");
keyLight->toggle();

Hue Lights and groups

Controlling a Hue light is a little bit more complex, the device needs to create an account on the Hue bridge. When starting the device it will connect to the wifi configured in secret.h. When the light is blinking you'll have to press the button on the bridge. When pressed you'll have 30 seconds to press the first button on our shield.

  // connect to bridge, create and store user in eeprom
  address_t bridge = HueLight::connect(HUE_BRIDGE, LED_BUILTIN, buttons[0]);

  // control a specific light
  Light * diningLight = new HueLight(bridge, 3);

  // controll all lights within a group
  Light * livingRoom = new HueGroup(bridge, 7);
  livingRoom->toggle();

Shield

A simple shield made using Kicad to give it a nice aesthetic, you can also use a simple breadboard with simple buttons. The pins use an interal pull-up resistor. When the pin is connected to ground the button is pressed. You can find the source in pcb and the assembly in assembly to send to your preferred manufacturer.

License