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Specifications :
| MPU | Chipset: MT7688AN |
| Core: MIPS24KEc | |
| Clock speed: 580MHz | |
| Working voltage: 3.3V | |
| MCU | Chipset: ATmega32U4 |
| Core: Atmel AVR | |
| Clock speed: 8MHz | |
| Working voltage: 3.3V | |
| Memory | Flash: 32MB |
| RAM: 128MB DDR2 | |
| Power Source | USB Power: 5V (USB micro-B) |
| VCC: 3.3V (Pin Breakout) | |
| GPIO | Pin Count: 3 (MT7688AN) |
| 24 (ATmega32U4) | |
| Voltage: 3.3v | |
| PWM | Pin Count: 8 (ATmega32U4) |
| Voltage: 3.3v | |
| Max. Resolution: 16 bits (customizable) | |
| ADC | Pin Count: 12 (ATmega32U4) |
| Voltage: 3.3v | |
| External Interrupts | Pin Count: 8 (ATmega32U4) |
| SPI/SPIS | Set count: 1 (ATmega32U4) |
| Pin numbers: S0, S1, S2, S3 | |
| Max. Speed: 4 MHz | |
| I2C | Set count : 1 |
| Pin numbers: D2, D3 | |
| Speed: 400K | |
| UART Lite | Set count : 1 (ATmega32U4) |
| 1 (MT7688AN) | |
| Pin numbers: P8, P9 (MT7688AN) | |
| D0, D1 (ATmega32U4) | |
| Max. Speed: 0.5 Mbps (MT7688AN) | |
| 0.5 Mbps (ATmega32U4) | |
| USB Host | Set count :1 (MT7688AN) |
| Pin numbers: P6, P7 | |
| Connector type: Micro-AB | |
| Communication | Wi-Fi: 1T1R 802.11 b/g/n (2.4G) |
| Ethernet: 1-port 10/100 FE PHY | |
| Pin numbers: P2, P3, P4, P5 | |
| User Storage | Micro SD |
| SDXC | |
| Length (mm) | 56 |
| Width (mm) | 26 |
| Height (mm) | 18 |
| Weight (gm) | 14 |
| Shipment Weight | 0.05 kg |
| Shipment Dimensions | 7 × 4 × 2 cm |
LinkIt Smart 7688 Duo is an open development board compatible with Arduino Yún sketches, based on the OpenWrt Linux distribution, MT7688, and ATmega32u4. The board is designed especially to enable the prototyping of Rich IoT Application for smart house or office. Since it is compatible with Arduino, this allows you to use different features from Arduino Yún and LinkIt Smart 7688 Duo, which will help you build rich applications based on various, robust and compiled Arduino Yún sketches. The board offers you the memory and packet storage to enable robust video processing. The platform also offers options to create device applications in Python, Node.js and C programming language.
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