- Android Things Projects
- Francesco Azzola
- 228字
- 2021-07-02 20:46:27
Project schematic
The peripherals we need to build this project are:
- PIR sensor
- Raspberry Pi 3 or Intel Edison with Arduino breakout kit
- Google Firebase account
- Wire jumpings
You can buy a PIR sensor in an online store such as Amazon, Sparkfun, or Adafruit.
The following diagram describes how to connect the PIR sensor to the Android Things board if you are using Raspberry Pi 3:

If you are using Intel Edison with Arduino breakout kit the connections are shown here:

In this case, we can directly connect the sensor to our board. The connections are:
- Connect the PIR to the pin that supplies +5V
- Connect the ground PIR pin to the ground of the board
- Connect the PIR signal to pin 7 for Raspberry or pin 4 for Intel Edison
As you can notice, the sensor connects to +5V in both cases: Raspberry and Intel Edison. The signal pin provided by PIR is zero when no motion is detected and +3V when the motion is detected. Considering that the high level supplied by the PIR is +3, then we can connect the PIR sensor safely to Raspberry Pi 3.
Remember to connect the sensor to the board when this one is unplugged from your computer. Do not try to connect the sensor when your board is turned on, as you could damage your board and the sensor.
推薦閱讀
- 極簡算法史:從數(shù)學(xué)到機器的故事
- 小程序?qū)崙?zhàn)視頻課:微信小程序開發(fā)全案精講
- Spring技術(shù)內(nèi)幕:深入解析Spring架構(gòu)與設(shè)計
- MATLAB圖像處理超級學(xué)習(xí)手冊
- 數(shù)據(jù)結(jié)構(gòu)簡明教程(第2版)微課版
- SEO實戰(zhàn)密碼
- Swift語言實戰(zhàn)精講
- Android系統(tǒng)級深入開發(fā)
- 搞定J2EE:Struts+Spring+Hibernate整合詳解與典型案例
- JavaScript程序設(shè)計(第2版)
- Visual C++程序設(shè)計與項目實踐
- HTML5與CSS3權(quán)威指南
- Java EE實用教程
- Android熱門應(yīng)用開發(fā)詳解
- R語言與網(wǎng)站分析