handles integration with the Mycroft Mark1 hardware
the firmware for mark1 arduino that controls the eyes and faceplate can be found here
utits to interact with the faceplate pixel by pixel can be found in ovos-mark1-utils
See the file protocols.txt for a description of commands that can be sent to the faceplate.
Commands can be sent from the command line on a Raspberry Pi, such as this:
$ echo "eyes.blink" > /dev/ttyAMA0
$ echo "eyes.color=16711680" > /dev/ttyAMA0
$ echo "mouth.text=I am angry!" > /dev/ttyAMA0
Which will blink the eyes, turn them red, then display the phrase on the faceplate.
The mouth.icon= command takes a custom format for it's black and white images. You can use the HTML editor to create the image strings that can be sent.
When looking at the device from the back, pins are laid out as:
-----------------------------------------------------------------------------------------------
RCA Port | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | 25 | 27 | 29 | 31 | 33 | 35 | 37 | 39 |
-----------------------------------------------------------------------------------------------
HDMI Ethernet USB USB
Where:
| Pin | Description |
|---|---|
| 1 | GND |
| 2 | +12V |
| 3 | GND |
| 4 | +5V |
| 5 | GND |
| 6 | +3.3V |
| 7 | Arduino Reset |
| 8 | Arduino D5 |
| 9 | Arduino D6 |
| 10 | Arduino D10 |
| 11 | Arduino A2 |
| 12 | Arduino A3 |
| 13 | +3.3V |
| 14 | +3.3V |
| 15 | +3.3V |
| 16 | GND |
| 17 | GND |
| 18 | GND |
| 19 | +5V |
| 20 | +5V |
| 21 | +5V |
| 22 | +5V |
| 23 | GND |
| 24 | GND |
| 25 | Raspberry Pi ID_SC |
| 26 | Raspberry Pi ID_SD |
| 27 | Raspberry Pi GPIO 4 |
| 28 | Raspberry Pi GPIO 5 |
| 29 | Raspberry Pi GPIO 6 |
| 30 | Raspberry Pi GPIO 7 |
| 31 | Raspberry Pi GPIO 8 |
| 32 | Raspberry Pi GPIO 9 |
| 33 | Raspberry Pi GPIO 10 |
| 34 | Raspberry Pi GPIO 11 |
| 35 | Raspberry Pi GPIO 12 |
| 36 | Raspberry Pi GPIO 16 |
| 37 | Raspberry Pi GPIO 25 |
| 38 | Raspberry Pi GPIO 26 |
| 39 | GND |
| 40 | GND |
WARNING: This is not the same as the standard Raspberry Pi GPIO headers!