Temperature and humidity alarm based on 32 core boards

1. Project Introduction

The project is composed of 32 core board + base plate temperature and humidity alarm expansion board, which is composed of DHT11 temperature and humidity sensor, 4-digit 0.56-inch common cathode digital tube, buzzer, 1 power indicator, 2 temperature and humidity mode indicators, 4 function buttons, 1 reset button and other components.

2. Core board compatibility

The core board of the project supports the GD32 small board launched by the Lichuang development board, the STM32F103 small blue board and the CW32 small blue board launched by Wuhan Xinyuan Semiconductor, and more core boards are being adapted.

LC· GD32E230 minimal system board	STM32F103C8T6 Core board	CW32F030C8T6 Core board
Click here to view the open source project		Click here to view the open source project
Click here to view the project information
Click to buy the core board	The e-commerce platform buys it itself	Click to buy the core board

3. Instructions for use

• LED1: Power indicator
• LED2: Temperature mode indicator
• LED3: Humidity mode indicator
• KEY1: Click: Temperature mode; Double-click: Set the upper and lower limit modes of temperature alarm;
• KEY2: Click: Humidity mode; Double-click: Set the upper and lower limit modes of humidity alarm;
• KEY3: Alarm value +, valid in alarm mode;
• KEY4: Alarm value -, valid in alarm mode;
• RST: Reset mode.