Sensor expansion board

Advantages of the sensor expansion board : It saves beginners the trouble of tedious breadboard wiring and troubleshooting, and allows them to focus on realizing their own creative ideas. The fool-proof design of the expansion interface makes it easier to use : Each port is clearly marked, so you can understand its functions without a manual. Introducing some common sensors on the market, suitable for personal DIY and novice teaching.

Onboard content includes:

1. DHT11 temperature and humidity sensor
2. Passive buzzer
3. sound sensor
4. 0.96 inch OLED
5. MPU6050 interface
6. Photosensitive sensor
7. Serial screen interface
8. I2C interface
9. RGB full color LED
10. Serial interface
11. At the same time, the expansion board provides multiple power output pins to avoid the problem of external devices being unable to supply power.

Onboard power supply:

It has on-board power supply and switch control. When using any lead-out interface, an external power supply must be connected and the power supply switch must be turned on to prevent damage to the sensor caused by improper direct power-on operation.

Expansion board description: (project completion description)

The board is designed as a sensor expansion board for novices, so the content is relatively simple. It introduces many interfaces and facilitates expansion. Because it is an expansion board, I don’t plan to use it for a big project. I just plan to use it to learn RT Thread and various commonly used sensors. The demonstration video demonstrates the use of related sensors, proving that the board design currently has no major problems. Related code link: https://github.com/Hueren/RTT (The file is too large and the upload limit is exceeded. I only uploaded some codes that I think are important )