

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.
The Linklt Smart 7688 development platform offers two developments boards:
Linklt Smart 7688: MPU only. Powered by Media Tek MT7688.
Linklt Smart 7688 Duo: MPU and MCU. Powered by Media Tek MT7688 and ATmega 32U4.
Category | Feature | Specification |
---|---|---|
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 | |
PCB Size | Dimensions | 60.8 x 26 mm |
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) | |
Maximum Frequency@Resolution | 31.25kHz@8-bit, Timer 0 (4 sets) | |
2MHz@2-bit,122Hz@16-bit, Timer 1 & 3 (4 sets) | ||
187.5kHz@8-bit, 46.875kHz@10-bit, Timer 4 (6 sets) | ||
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 | SD Card | Micro SD SDXC |
Demo –Facebook Likes Reminder
It will remind you when you have a new 'like' on your facebook page. The device will vibrate,the lights will twinkle, while the screen will show the real-time facebook likes.
Learn more at our Recipe.
Documents
Please visit our Wiki page for more info about this product. It will be highly appreciated if you can help improve the documents, add demo codes or tutorials. For technical support, please post your questions to our Forum.
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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.