Easy Installer

If you order from us, your FLIP_C3 or FLIP_C3 based device should have a pre-installed version of ESPHome, but if you need to reinstall this base firmware, we've set up an easy installer on our main website. This will allow you to use Chrome or Edge to install it via a USB-C cable. Current versions cannot be connected via USB-C while powered via the buck converter.

You may need to hold the BOOT button as you connect the USB cable. Alternatively you can hold the BOOT button while you press and release the RESET button if the FLIP_C3 is already connected via USB-C. Hold the BOOT button for a couple seconds after the device is connected to your computer and then proceed with the installation above. Once complete, power cycle the FLIP-C3 with the RESET button or disconnecting and reconnecting the cable. You can also use this time to swap to a DC power source via the 2P spring connector.

Adopt In ESPHome

Once you've followed the steps to connect your FLIP_C3 to Wifi, you should see it in the ESPHome dashboard available to be adopted. Adopting into ESPHome will generate a base YAML that references our YAML file on Github as an external package with the following lines:

  vdbxio.FLIP-C3: github://vdbxio/wiki/esphome/flip-c3.yaml

This includes references to all the basics of the hardware and more. This includes the onboard WS2812, the red status LED, the Boot Button on GPIO9 and I2C is defined at id: bus_a

You can add ESPHome YAML to the end of this to get started quickly.

YAML Reference

The following are snippets to properly interact with FLIP_C3 hardware in ESPHome

Direct reference to the YAML we ship with is available on Github:

We're still working on organizing and modularization. Feel free to help out. There's a lot more in there than referenced here.

Board Definition

If you like, you can easily start a blank ESPHome device based on the ESP32-C3 using esp32-c3-devkitm-1 board type. This is default in ESPHome for C3 based boards and we use chip level pin numbers on our silkscreen.

  name: bare-minimum
  friendly_name: Bare Minimum

  board: esp32-c3-devkitm-1
    type: arduino

Boot Button

The BOOT button is available in software on GPIO9 after boot. If held during boot, FLIP_C3 will be put into bootloader/flash mode.

  - platform: gpio
    name: Boot Button
      number: 9
      inverted: True
        input: True
        pullup: True


  - platform: esp32_rmt_led_strip
    id: onboard_rgb
    rgb_order: GRB
    rmt_channel: 0
    chipset: ws2812    
    pin: 8
    restore_mode: RESTORE_AND_OFF
    num_leds: 1
    name: "RGB LED"

Status LED

  - platform: status_led
    name: "Status LED"
    id: status_led
    pin: 10

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