Luca Dentella designed and built a USB stick powered by esp32-s2 chip, the esp32s2Stick: esp32s2Stick is a USB device based on the esp32-s2 chip by Espressif. Thanks to the presence of an USB OTG interface, it is possible to program the chip to act as a USB peripheral (mass storage device, CDC…) and to upgrade […]
Tag Archives: USB OTG
App note: USB On-The-Go (OTG) basics
USB OTG explained in this app note from Cypress Semiconductors. Link here This application note discusses several aspects of OTG functionality. The note introduces end-applications and different types of cables and connectors involved with OTG. It also describes the OTG protocol state changes when both Mini-A and Mini-B devices are connected .The host negotiation protocol […]