PIC chip programmed with the code for the PWM Fan Controller. This is a microcontroller that has an onboard processor, memory, I/O control and program space. This chip is the heart of the PWM Fan Controller project. If you do not have a method of programming the custom code to a PIC chip this is a great option to building this project without having to purchase a PIC programmer.
Here are the parts that you will need to build the project. We have all of the items available in the online store except the LM35.
Pre-programmed PWM Fan microcontroller (the product you are looking at)