When the Pi Zero came out, one of the downsides (!) of the low-cost design was swapping the ‘standard’ USB A-port for a micro-B port. Now you have to use an ‘OTG’ cable instead of just plugging in a device.
There was also the matter of, if you didn’t have anything connected to USB, and powered up the Pi, you’d get a strange warning
WARN::dwc_otg_handle_mode_mismatch_intr:68: Mode Mismatch Interrupt: currently in Device mode
Basically, the Pi sorta-trying to become a usb device rather than a usb host
Some awesome people on github sorted out that if you used the DWC2 USB driver, and patched a few files, you could get the Pi to act like a USB device (in linux-land this is called the USB Gadgetsystem)
This tutorial is basically just a writeup of how you can follow along and turn your Pi zero into a Usb Serial device or Ethernet device. That’s two whole ways of being able to connect to your Pi zero just by plugging in a micro B cable!
You don’t even need to power your Pi seperately, as power is provided from your computer.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — Re-evaluating Amazon after its acquisition of Whole Foods
Wearables — Lacy wires
Electronics — Higher isn’t always better
Biohacking — Vitamin-C + Gelatin for Accelerated Recovery
Python for Microcontrollers — Supercharged Supercon with CircuitPython, Quoth the Raven MOAR PYTHON! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit
Adafruit IoT Monthly — The S in IoT is for Security, Amazon announces Sidewalk and more!
Microsoft MakeCode — Xenomorph candy bucket and spooky workshops with MakeCode!
Sorry, the comment form is closed at this time.