A project log for USB BiPower OTG Flex Module

Bipolar power supply +/- 3.3V from USB. + rail is ~3A, - rail is ~300mA. For sale on Tindie.

Chris HamiltonChris Hamilton 06/22/2015 at 05:320 Comments

While working on this board, I believe I should make a version that provides a USB bridge such as a i2c or UART to USB bridge. This depends on space available. Also, I believe the STM32 Large Flex Module may be able to include a version of this schematic.