# 16-Key Capacitive Touch {docsify-ignore-all}

| 规格 | 参数 |
| 通讯协议 | I2C:0x51 |
| 净重 | 7g |
| 毛重 | 19g |
| 产品尺寸 | 32*24*8mm |
| 包装尺寸 | 67*53*12mm |
## EasyLoader
| M5Core(PORT A) | GPIO22 | GPIO21 | 5V | GND |
| MAKEY Unit | SCL | SDA | 5V | GND |
## 原理图
## 相关链接
- **[Maykey 固件](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Makey_NewVersion/firmware_328p)**
## 案例程序
### 1. Arduino
- [请点击此处获取Arduino示例程序](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Makey_NewVersion/Arduino/Makey_new_version)
### 2. UIFlow
- [请点击此处获取UIFlow示例](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/Makey_NewVersion/UIFlow)