AVCTV1

Automatic Non-Contact Thermometer V1.2

• ESP32 Dev Board
• MLX90614 non contact IR sensor
• TCRT5000 IR reflected sensor
• MAX7219 Dotmatrix display driver x 3 nos

#TO DO

• To calibrate measurement distance to 5cm

#Updated

• Added nolmal, warning and alert LED, buzzer

#Idea

• May add Wifi access pages

Connection MLX90614

• VIN -> ESP32 3.3v
• GND -> ESP32 GND
• SCL -> ESP32 22
• SDA -> ESP32 21

TCRT5000 - ESp32 34/ADC

MAX MAX7219

• Vcc - 5V
• GND - GND
• DOUT - ESP32
• CS - ESP32
• CLK - ESP32

LED and Buzzer

• NORMAL LED - ESP32 25
• WARNING LED - ESP32 26
• ALERT LED - ESP32 27
• BUZZER 14 - ESP32 14

Used: Adafruit_MLX90614 Lib

• https://github.com/adafruit/Adafruit-MLX90614-Library
• Written by Limor Fried/Ladyada for Adafruit Industries. BSD license, all text above must be included in any redistribution

MAX72XX Display Lib

• https://github.com/MajicDesigns/MD_MAX72XX

By: oakkar7, oakkar7@gmail.com oakkar7 blog MYANMAR