Guru
Joined: 25/06/2022
Location: United KingdomPosts: 2158
| Posted: 03:17pm 03 Apr 2024 |
Mick, if you blobbed the dual diode input and ran 5V from the usb to ttl I presume would be added for programming from a pc, to Vin which now blobbed to Vbus, so powering rpi2040 3.3V reg and powering usb device which is the way I use standard pico usb but 5V from usb to ttl to Vbus no blobbing.
dunno where the dual diode is.guessing the 3.3v reg is next to pins 2 and 3.