LinkIt 7697 ( Linkit 7697 物聯網裝置開發板 ) is a co-design product by Seeed Studio and MediaTek. As the latest member of the LinkIt family, it uses the MediaTek MT7697 SoC and aims at providing lightweight IoT solution. It may reminds you of LinkIt Smart 7688/Duo, another development board which released in 2015. Both of them are born for IoT however they are quite different.
The chipset of LinkIt 7697 is MT7697, a highly integrated single chip which features an application processor, a low power 1×1 11n single-band Wi-Fi subsystem, a Bluetooth subsystem, and a Power Management Unit. The application processor subsystem contains ARM Cortex-M4F MCU. It also includes many peripherals, including UART, I2C, SPI, I2S, PWM, IrDA, and auxiliary ADC.
Linkit 7697 物聯網裝置開發板 For programming
For programming, you can program the board with the native LinkIt SDK using GCC, IAR embedded workbench, or KEIL uVision. In order to make it easier to use, LinkIt 7697 also provides a porting layer to the popular Arduino IDE – so that you can use your existing Arduino sketches and peripheral driver libraries.
If comparing with Arduino UNO, you will find that the LinkIt 7697 is more powerful as it can run more complicated and store larger program, IoT application friendly and cost effective, you can even plug it into a breadboard directly and start your IoT project right away.
Grove – mini PIR motion sensor 微型紅外線動作感測器 用於製作運動檢測應用，例如報警防盜系統，訪客存在監控，燈光開關和機器人。Grove – 迷你PIR運動傳感器是一款緊湊，低功耗，高性價比的PIR傳感器，適用於相對較少檢測距離的應用場合。數據表中的檢測距離可達3米至5米，但是2米是我們推薦的最佳檢測距離，25℃是最適合的溫度。傳感器的靈敏度是可調的，在板的背面有預留的引腳，這樣就可以焊接滑動變阻器來調節靈敏度。如果你覺得靈敏度不夠，這裡有個小竅門，把塑料帽稍微拉一下，有助於提高靈敏度。