FACES Kit
Tutorial
Choose the development platform you want to use, view the corresponding tutorial&quick-Start.
Description
FACES Kit is a series of functional panels integration containing three most commonly used panels integration containing three most commonly used panels 'GameBoy','Calculator' and 'QWERTY'. With MEGA328 processor built inside, it works under slave mode through I2C communication protocol. With these 3 different panels, it will be very easy to support keyboard interaction with your M5Core.
Power on: click the red power button on the left
Power off: Quickly double-click the red power button on the left
Note: By default, when USB is powered, it cannot be shut down**
Product Features
- ESP32-based
- Built in 6-axis IMU
- Speaker, 3 Buttons, LCD
- TF card slot (16G Maximum size)
- Battery Socket & lithium polymer Battery
- Replaceable multifunction panel
- Extendable Pins & Holes
- M-Bus Socket & Pins
- Compatible with multi-platform development:
Include
- 1x GRAY
- 1x FACES Charger table
- 1x FACES sling
- 1x panel sticker
- 3x FACES Keyboard(GameBoy, Calculator, QWERTY)
- 10x Female-male dupont
- 6x M3x12 screw
- 1x hexagon screw key
- 1x Type-C USB(100cm)
Applications
- Gameboy
- Calculator
- Input peripherals
- Internet of things terminal controller
- DIY creation
Specification
| Resources | Parameter |
| ESP32 | 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi |
| Flash Memory | 16MB |
| Power Input | 5V @ 500mA |
| Port | TypeC x 1, GROVE(I2C+I/0+UART) x 1 |
| IPS Screen | 2 inch, 320x240 Colorful TFT LCD, ILI9342C, max brightness 853nit |
| Speaker | 1W-0928 |
| Button | Custom button x 1 |
| Core bottom port | PIN (G1,G2,G3,G16, G17, G18, G19, G21, G22, G23, G25, G26, G35, G36) |
| MEMS | BMM150 + MPU6886 |
| Battery | 600 mAh @ 3.7V |
| Antenna | 2.4G 3D Antenna |
| Operating Temperature | 0°C to 60°C |
| Net weight | 94g |
| Gross weight | 264g |
| Product Size | 58.2mm x 54.2mm x 18.7mm |
| Package Size | 120mm x 85mm x 65mm |
| Case Material | Plastic ( PC ) |
Driver Installation
CH9102_VCP_SER_MacOS v1.7, an error may occur, but the installation is actually completed, just ignore it.)| Driver name | Applicable driver chip | Download link |
|---|---|---|
| CP210x_VCP_Windows | CP2104 | Download |
| CP210x_VCP_MacOS | CP2104 | Download |
| CP210x_VCP_Linux | CP2104 | Download |
| CH9102_VCP_SER_Windows | CH9102 | Download |
| CH9102_VCP_SER_MacOS v1.7 | CH9102 | Download |
EasyLoader
EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification.
This case will run the FACES keyboard input test program by default. Restart the selected program list to switch between different panel test items.
Key string values
| Key | AC | M | % | ÷ | 0-9 | X | - | + | = | +/- | . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Val | A | M | % | / | 0-9 | * | - | + | = | ` | . |
| ESP32 Chip | GPIO23 | GPIO19 | GPIO18 | GPIO14 | GPIO27 | GPIO33 | GPIO32 | GPIO4 |
|---|---|---|---|---|---|---|---|---|
| ILI9342C | MOSI/MISO | / | CLK | CS | DC | RST | BL | |
| TF Card | MOSI | MISO | CLK | CS |
Key Int Values (Int values are the ASCII value of each key)
| Key | AC | M | % | ÷ | 0-9 | X | - | + | = | +/- | . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Val | 65 | 77 | 37 | 47 | |||||||
| 48-57 | 42 | 45 | 43 | 61 | 96 | 46 |
PinMap
Mega328 ISP Download interface Pin foot definition
IP5306 charging/discharging,Voltage parameter
| charging | discharging |
|---|---|
| 0.00 ~ 3.40V -> 0% | 4.20 ~ 4.07V -> 100% |
| 3.40 ~ 3.61V -> 25% | 4.07 ~ 3.81V -> 75% |
| 3.61 ~ 3.88V -> 50% | 3.81 ~ 3.55V -> 50% |
| 3.88 ~ 4.12V -> 75% | 3.55 ~ 3.33V -> 25% |
| 4.12 ~ / -> 100% | 3.33 ~ 0.00V -> 0% |
M5PORT DEFINE
| PORT-A(Red) | G21/22 | I2C |
|---|---|---|
| PORT-B(Black) | G26/36 | DAC/ADC |
| PORT-C(Blue) | G16/17 | UART |
ESP32 ADC/DAC
| 8 channels | 10 channels | 2 channels | 2 channels |
|---|---|---|---|
| G32-39 | G0/2/4/12-15/25-27 | G25 | G26 |
M-BUS
For more information about Pin assignment and Pin Remapping, Please refer to ESP32 Datasheet
Schematic
bottom
keyboard
calculator
gameboy
Related Link
Learn
Example
- Click here to download Arduino code
GameBoy Keyboard
If you are up for some classic video games, GameBoy panel plus M5Core is the perfect combination. All you need to do is to upload an emulator onto the M5Stack and attach the GameBoy panel underneath. This is how it will be like:
Use ESPTool to burn game tutorial: gameboy_burn_a_nes_game
The other panels are Calculator, Keyboard, Encoder, Joystick, Fingerprint, RFID and QWERTY Keyboard. You can apply them to those situations which are in need of inputting information and hard to control.
To reduce the difficulty of disassembly when removing the replacement panel, it is recommended to remove the M5Core and then disassemble the panel.
Version Change
| Release Date | Product Change |
|---|---|
| 2017.12 | Initial public release |
| 2019.6 | MPU9250 changed to MPU6886+BMM150 |
| 2019.7 | TN screen changed to IPS screen |
2018.2A PCB version of the device does not support C2C (TypeC to TypeC) connection and PD power supply.