The LinkIt Smart 7688 is an open development board, based on the OpenWrt Linux distribution and MT7688. The board is designed especially to enable the prototyping of Rich Application IoT devices for Smart Home. The board offers you the memory and packet storage to enable robust video processing. The platform also offers options to create device applications such as Python, Node.js and C programming language.
LinkIt Smart 7688 is a co-design product by Seeed Studio and MediaTek. It brings together the parties' knowledge in open hardware and industry leading reference designs for IoT devices to create this powerful development board.
LinkIt Smart 7688 is fully supported on the MediaTek Labs site: check out the and to download the SDK, participate in the Forums, and more.
Features
- Single input single output(1T1R) Wi-Fi 802.11 b/g/n.
- Pin-out for GPIO, I2C, I2S, SPI, UART, PWM and Ethernet Port.
- 580 MHz MIPS CPU.
- 32MB flash and 128MB DDR2 RAM.
- USB host.
- Micro SD slot.
| Category | Feature | Specification |
|---|---|---|
| MPU | Chipset | MT7688AN |
| Core | MIPS24KEc | |
| Clock speed | 580MHz | |
| Working voltage | 3.3V | |
| PCB Size | Dimensions | 55.7 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 | 22 (MT7688AN) |
| Voltage | 3.3v | |
| PWM | Pin Count | 4 (MT7688AN) |
| Voltage | 3.3v | |
| Max. Resolution | 7 bits (customizable) | |
| Maximum Frequency@Resolution | 100kHz@1-bit 50kHz@2-bit 25kHz@3-bit 12.5kHz@4-bit 6.25kHz@5-bit 3.125kHz@6-bit 1.5625kHz@7-bit (Standard mode) |
|
| 40MHz@1-bit 20MHz@2-bit 10MHz@3-bit 5MHz@4-bit 2.5MHz@5-bit 1.25Mhz@6-bit 625kHz@7-bit (Fast mode) |
||
| External Interrupts | Pin Count | 22 (MT7688AN) |
| SPI | Set count | 1 (MT7688AN) |
| Pin numbers | P22, P23,P24 (Shared with on-board flash), P25 | |
| Max. Speed | 25 MHz | |
| SPI Slave | Set count | 1 (MT7688AN) |
| Pin numbers | P28, P29, P30, P31 | |
| Max. Speed | 25 MHz | |
| I2S | Set count | 1 (MT7688AN) |
| Pin numbers | P10, P11, P12, P13 | |
| I2C | Set count | 1 |
| Pin numbers | P20, P21 | |
| Speed | 120K/400K |
Demo –Smart WiFi Audio
It is a WiFi Audio which allows your mobile phone to connect to its WiFi and play the music in your phone. If you connect the Linklt Smart 7688 to your Router, the Audio will show the IP on the Grove RGB Backlight LCD, and also the music names.
Documents
Please visit our 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.
