An Efficient Microcontroller for Visual Cortical Prosthesis

Medical implant devices (MID) are becoming increasingly used as a means of treating human disorders. Among such MIDs, the visual cortical prosthesis (VCP) is one of the treatments for blind people who want to restore their vision. The visual cortex stimulator (VCS) is a device that requires a reliable power source as well as quick data transfer. Furthermore, the data processing unit must meet specific criteria, such as low power consumption, small size, and efficient processing. One of the most efficient microcontrollers on the market is mentioned in this report. Their characteristics and capabilities are evaluated so that we may select an effective microcontroller that complies with all VCP requirements, including safety and health. The chosen microcontroller (ARM-Cortex M4) was mounted on a single round form printed circuit board (PCB) with a diameter of 30 mm and a thickness of 2.68 mm, together with other necessary components. Furthermore, utilizing low-power Bluetooth, a data transfer speed of 170 Kbps was achieved. Moreover, image decompression time was only 19.55 ms with an overall system power consumption of 80 mW.