m5-docs/docs/en/core/face_kit.md

# FACES Kit

<el-tag effect="plain">SKU:K005</el-tag>

<div class="product_pic"><img src="assets/img/product_pics/core/faces_kit/face_01.webp"><img src="assets/img/product_pics/core/faces_kit/face_02.webp"></div>

## Tutorial&Quick-Start

Choose the development platform you want to use, view the corresponding tutorial&quick-Start.

<a href="/#/en/quick_start/m5core/m5stack_core_get_started_MicroPython"><el-tag effect="plain">UIFlow</el-tag></a>
<a href="/#/en/arduino/arduino_development"><el-tag effect="plain">Arduino</el-tag></a>

## 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/off:**

* Power on: click the red power button on the left

* Power off: Quickly double-click the red power button on the left


## Product Features

- ESP32-based
- Built in 6-axis IMU
- Speaker, 3 Buttons, LCD
- TF card slot (16G Maximum size)
- Battery Socket & Lipo Battery
- Replaceable multifunction panel
- Extendable Pins & Holes
- M-Bus Socket & Pins
- Development Platform [UIFlow](http://flow.m5stack.com), [MicroPython](http://micropython.org/), [Arduino](http://www.arduino.cc)


## Include

- 1x GRAY
- 1x FACES Charger table
- 1x FACES sling
- 1x panel sticker
- 3x FACES Keyboard(GameBoy, Calculator, QWERTY)
- 10x Femal-male dupont
- 6x M3x10 screw
- 1x hexagon screw key
- 1x Type-C USB(100cm)

## Applications

- Gameboy
- Calculator
- Input peripherals
- Internet of things terminal controller
- DIY creation

## Specification

<table>
   <tr style="font-weight:bold">
      <td>Resources</td>
      <td>Parameter</td>
   </tr>
   <tr>
      <td>ESP32</td>
      <td>240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth</td>
   </tr>
   <tr>
      <td>Flash Memory</td>
      <td>16MB</td>
   </tr>
   <tr>
      <td>Power Input</td>
      <td>5V @ 500mA</td>
   </tr>
   <tr>
      <td>Port</td>
      <td>TypeC x 1, GROVE(I2C+I/0+UART) x 1</td>
   </tr>
   <tr>
      <td>IPS Screen</td>
      <td>2 inch, 320x240 Colorful TFT LCD, ILI9342C, max brightness 853nit</td>
   </tr>
   <tr>
      <td>Speaker</td>
      <td>1W-0928</td>
   </tr>
    <tr>
      <td>Button</td>
      <td>Custom button x 1</td>
   </tr>
   <tr>
      <td>Core bottom port</td>
      <td>PIN (G1，G2，G3，G16, G17, G18, G19, G21, G22, G23, G25, G26, G35, G36)</td>
   </tr>
   <tr>
      <td>MEMS</td>
      <td>BMM150 + MPU6886</td>
   </tr>
   <tr>
      <td>Battery</td>
      <td>600 mAh @ 3.7V</td>
   </tr>
   <tr>
      <td>Antenna</td>
      <td>2.4G 3D Antenna</td>
   </tr>
   <tr>
      <td>Operating Temperature </td>
      <td>32°F to 104°F ( 0°C to 40°C )</td>
   </tr>
   <tr>
      <td>Net weight</td>
      <td>94g</td>
   </tr>
   <tr>
      <td>Gross weight</td>
      <td>264g</td>
   </tr>
   <tr>
      <td>Product Size</td>
      <td>58.2mm x 54.2mm x 18.7mm</td>
   </tr>
   <tr>
      <td>Package Size</td>
      <td>120mm x 85mm x 65mm</td>
   </tr>
   <tr>
      <td>Case Material</td>
      <td>Plastic ( PC )</td>
   </tr>
</table>

Key string values

<table class="table-1">
    <thead>
    <tr>
        <th>Key</th>
        <th>AC</th>
        <th>M</th>
        <th>%</th>
        <th>÷</th>
        <th>0-9</th>
        <th>X</th>
        <th>-</th>
        <th>+</th>
        <th>=</th>
        <th>+/-</th>
        <th>.</th>
    </tr>
    </thead>
    <tbody>
        <tr>
            <td>Val</td>
            <td>A</td>
            <td>M</td>
            <td>%</td>
            <td>/</td>
            <td>0-9</td>
            <td>*</td>
            <td>-</td>
            <td>+</td>
            <td>=</td>
            <td>`</td>
            <td>.</td>
        </tr>
    </tbody>
</table>


<table class="table-1">
      <thead>
        <tr>
         <th>ESP32 Chip</th>
         <th>GPIO23</th>
         <th>GPIO19</th>
         <th>GPIO18</th>
         <th>GPIO14</th>
         <th>GPIO27</th>
         <th>GPIO33</th>
         <th>GPIO32</th>
         <th>GPIO4</th>
        </tr>
      </thead>
      <tbody>
         <tr>
            <td>ILI9342C</td>
            <td>MOSI/MISO</td>
            <td>/</td>
            <td>CLK</td>
            <td>CS</td>
            <td>DC</td>
            <td>RST</td>
            <td>BL</td>
            <td> </td>
         </tr>
         <tr>
            <td>TF Card</td>
            <td>MOSI</td>
            <td>MISO</td>
            <td>CLK</td>
            <td> </td>
            <td> </td>
            <td> </td>
            <td> </td>
            <td>CS</td>
         </tr>
    </tbody>
</table>



Key Int Values (Int values are the ASCII value of each key)


<table><tr><th>Key</th><th>AC</th><th>M</th><th>%</th>
<th>÷</th><th>0-9</th><th>X</th><th>-</th><th>+</th><th>=</th>
<th>+/-</th><th>.</th></tr>

<tr><td>Val</td><td>65</td><td>77</td><td>37</td><td>47
</td><td>48-57</td><td>42</td><td>45</td><td>43</td>
<td>61</td><td>96</td><td>46</td></tr></table>

## 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. Please install the corresponding driver according to the device type. M5Core host [Please click here to view the CP210X driver installation tutorial](en/arduino/arduino_development), M5StickC/V/T/ATOM series can be used without driver)

<div class="easyloader-box">
    <div style="background-color:white;">
        <div><img src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/image/easyloader_intro.webp"></div>
        <div class="easyloader-btn">
            <a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/Windows/CORE/EasyLoader_FACES_FactoryTest.exe">Windows</a>
            <a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/MacOS/CORE/EasyLoader_FACES_FactoryTest.dmg">MacOS</a>
            <!-- <a>Linux</a>
            <a>MacOS</a> -->
        </div>
    </div>
    <div>
        <video id="example_video" controls>
            <source src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/video/Product_example_video/Core/FACES.mp4">
        </video>
        <div class="easyloader-mask">
        <a>
            <svg id="play-btn" t="1583228776634" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="4152" width="75" height="75"><path d="M512 0C229.216 0 0 229.216 0 512s229.216 512 512 512 512-229.216 512-512S794.784 0 512 0z m0 928C282.24 928 96 741.76 96 512S282.24 96 512 96s416 186.24 416 416-186.24 416-416 416zM384 288l384 224-384 224z" p-id="4153" fill="#007aff"></path></svg></a>
            <p>Description:</p>
            <p>This case will run the FACES keyboard input test program by default. Restart the selected program list to switch between different panel test items.</p>
        </div>
    </div>
</div>

## PinMap

**Mega328 ISP** Download interface Pin foot definition

<img src="assets\img\product_pics\app\mega328_isp.webp" width="30%" height="30%">

**IP5306 charging/discharging，Voltage parameter**

<table>
   <tr style="font-weight:bold;text-align:center" >
      <td>charging</td>
      <td><td>
      <td>discharging</td>
   </tr>
   <tr>
      <td>0.00 ~ 3.40V -> 0%</td>
      <td><td>
      <td>4.20 ~ 4.07V -> 100%</td>
   </tr>
   <tr>
      <td>3.40 ~ 3.61V -> 25%</td>
      <td><td>
      <td>4.07 ~ 3.81V -> 75%</td>
   </tr>
   <tr>
      <td>3.61 ~ 3.88V -> 50%</td>
      <td><td>
      <td>3.81 ~ 3.55V -> 50%</td>
   </tr>
   <tr>
      <td>3.88 ~ 4.12V -> 75%</td>
      <td><td>
      <td>3.55 ~ 3.33V -> 25%</td>
   </tr>
   <tr>
      <td>4.12 ~   /   -> 100%</td>
      <td><td>
      <td>3.33 ~ 0.00V -> 0%</td>
   </tr>
</table>


## M5PORT EXPLAIN

<table>
      <thead>
         <th>PORT</th>
         <th>PIN</th>
         <th>Note:</th>
      </thead>
      <tbody>
      <tr>
         <td>PORT-A(Red)</td>
         <td>G21/22</td>
         <td>I2C</td>
      </tr>
      <tr>
         <td>PORT-B(Black)</td>
         <td>G26/36</td>
         <td>DAC/ADC</td>
      </tr>
      <tr>
         <td>PORT-C(Blue)</td>
         <td>G16/17</td>
         <td>UART</td>
      </tr>
    </tbody>
</table>

## ESP32 ADC/DAC

<table>
      <thead>
         <th>ADC1</th>
         <th>ADC2</th>
         <th>DAC1</th>
         <th>DAC2</th>
      </thead>
      <tbody>
      <tr>
         <td>8 channels</td>
         <td>10 channels</td>
         <td>2 channels</td>
         <td>2 channels</td>  
      </tr>
      <tr>
         <td>G32-39</td>
         <td>G0/2/4/12-15/25-27</td>
         <td>G25</td>
         <td>G26</td>
      </tr>
    </tbody>
</table>

## M-BUS

<img src="assets/img/product_pics/core/M-BUS.webp" alt="M_BUS"  width="60%" height="36%">


For more information about Pin assignment and Pin Remapping, Please refer to [ESP32 Datasheet](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/esp32_datasheet_en.pdf)


## Related Link

-  **Datasheet** 

    - [ESP32](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/esp32_datasheet_en.pdf)
    - [MPU6886](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/MPU-6886-000193%2Bv1.1_GHIC_en.pdf)
    - [BMM150](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/BMM150_datasheet_en.pdf)
    - [IP5306](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/core/IIC_IP5306_REG_V1.4_cn.pdf)

-  **API**

   - [Arduino API](en/arduino/arduino_home_page?id=m5core_api)
   
## Schematic

- [Schematic](https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/schematic/Core/M5-Core-Schematic(20171206).pdf)

### bottom

<img src="assets\img\product_pics\core\faces_kit\Faces_bottom_sch.webp" width="70%">

### keyboard

<img src="assets\img\product_pics\core\faces_kit\Faces_keyboard_sch.webp" width="70%">

### calculator

<img src="assets\img\product_pics\core\faces_kit\Faces_calculator_sch.webp" width="70%">

### gameboy

<img src="assets\img\product_pics\core\faces_kit\Faces_gameboy_sch.webp" width="70%">

## Version Change

<div class="table-wrapper">
    <table class="fl-table">
        <thead>
        <tr>
            <th>Release Date</th>
            <th>Product Change</th>
        </tr>
        </thead>    
        <tbody>
        <tr>
            <td>2017.12</td>
            <td>Initial public release</td>
        </tr>
        <tr>
            <td>2019.6</td>
            <td>MPU9250 changed to MPU6886+BMM150</td>
        </tr>
        <tr>
            <td>2019.7</td>
            <td>TN screen changed to IPS screen</td>
        </tr>
        <tbody>
    </table>
</div>


## Example

- Click [here](https://github.com/m5stack/M5Stack/tree/master/examples/Face) 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: https://docs.m5stack.com/#/en/quick_start/faces/gameboy_burn_a_nes_game

<a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/M5Core/Faces_kit/Faces_GameBoy_BladeBuster.exe">Click here to download the testing game program</a>

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.

<script>

   var purchase_link = 'https://m5stack.com/collections/m5-core/products/face';
   var quickstart_link = 'https://docs.m5stack.com/#/en/quick_start/m5core/m5stack_core_quick_start';

   anchor_search(purchase_link,quickstart_link);
   scrollFunc();

</script>