Raspberry Pi launches a $4 microcontroller with a custom chip 23 Jan, 2021 Raspberry Pi microcomputers are one of the efficient machines available. They can be used for anything, be it for homemade cameras or cucumber sorters. The company recently launched microcontrollers and custom silicons. This is the new $4 microcontroller, which is micro in size than the regular Pi. The device has a custom chip that is potent enough to power machine learning projects. The product is on sale on the official website. (according to The Raspberry Pi Foundation), and is on sale now. Raspberry Pi recently explained in a blog post that the present Raspberry Pis are often used in collaboration with smaller microcontrollers. ‘The Raspberry Pi understands and takes care of heavyweight computation, complete network access, and storage. The microcontroller of the company handles analog input and low-latency I/O functioning. It also efficiently gives low-power standby mode to devices.