This project is a small automatic cooling system for home theater rack. It supports 2 temperature sensors for different zones in the rack and 2 12V PWM fans (standard for PC case cooling).
There is a power switch connector for a switch mounted on the casing (will be designed and 3D printed later). A reset button is provided mostly for reprogramming purpose. There are 4 buttons for setting up temp...
The PCB attaches to the back of the OP-320A unit, which is a cheap operator console panel you can get off aliexpress or ebay for about $50, you remove the PCB with the unit and attach this as a replacement to give arduino compatibility.
Wiring mostly copied from teensy++ and uno so something of a mix here, Uses a standard Arduino shield header but you will definitely need to adjust your sketch...
## Arduino drives I2C LCD Controller based on a LCD1602 module ##
## LCD Software Library Information ##
ALL the displays will use the IMPORTANT Library written by Francisco Malpartida.You can download the Library:
[the great Library ]
you must have the library installed correctly.
And Check the small backpack interface board on the back. These small boards on the back inter...
This Schematic is about Arduino based tachometer
IR sensor manipulate by rotation of motor then signal are transfer to arduino.
Arduino will process this signals and give RPM display to LCD Screen.
Aim : To design PIC16F877A based Temperature controller, LM35 as Temperature Sensor, A pot reference set point adjustment. LCD to display Current Temperature, Reference Temperature and status of the output.
Software : MPLAB IDE.
Code : Assembly language(under development...).