Infrared remote control alarm (schematic + PCB diagram + program + documentation).rar

The infrared controlled temperature alarm produced for this competition took half a month to make. It is a simple device made of AT89S52 with LCD 12864 as the display platform, including infrared remote control, temperature measurement, time display, alarm reminder and picture browsing. Infrared controlled temperature sensor.

• Infrared data receiving part: HS38B is used as the infrared receiver. After the receiving head receives the data, it is sent to the microcontroller for processing.
• Temperature acquisition part: The chip that performs temperature acquisition is the temperature sensor DS18B20, whose accuracy can reach 1°C.
• Time display part: Use the built-in timer of the microcontroller AT89S52 to update the time.

The biggest feature of this production is the multi-layer menu design and sending data to the serial port through the computer host computer instead of remote control. After the microcontroller is powered on, a startup picture will appear, and then the basic page will be entered. The basic interface includes the year, month, day, and day of the week. , hours, minutes, seconds and current temperature. After pressing the button with the button code 0x1e, you will enter the main menu. There will be four options on the main menu, namely temperature upper and lower limit settings, display time settings, alarm time settings and picture browsing. Press the corresponding button to enter the next level setting submenu, and then press the corresponding button to perform the corresponding processing.