Adafruit USB Type C CC Resistor Fixer

lgeorget

I lost a good two hours the other day on an insufficiently documented device, looking for a way to flash a new firmware onto it. dmesg was absolutely silent about it when I plugged in or out my C-C USB cable although the device switched on when I was using a simple charger instead. I opened it up to see if there was a special switch or something to put it in firmware flashing mode, to no avail. The little documentation I had only mentioned using one of the USB port. In the end, out of ideas, I switched cables (even though I knew my cable was perfectly fine). As soon as I plugged in a A-C USB cables, everything worked immediately...

eknkc

I did not know this was a thing. I have a couple of devices that do not charge on a usb c source. I have to use a USB A - C cable on their shitty usb-c ports. Now that I know the probable reason I’m more annoyed.

rufo

As someone with a bunch of "USB-C" devices that do this, I'd wondered for years why nobody sold these. I recently just found them on Aliexpress in a more finished format (nice-looking case and such), so I'm hopeful they'll start to filter out into the world more. (If you're interested, do a search for "usb c resistor" and you'll find them for ~$2-$4.)

Congeec

I don't buy and return products that don't charge with a single usb-c cable. How can I expect good quality from a product if the maker saves on ¢1 cent? It's 2026 yet new products still keep people from going all usb-c.

tbyehl

Hagibis makes one that isn't a bare PCB. B0GLFGTLW9 on Amazon.com, for me today it's showing $6.99 for a 2-pack.

joecool1029

There were some higher profile products that left this out like the original revisions of the raspberry pi 4.

megous

2 connectors and a 0.01c PCB for the price of a complete working charger.

blacksmith_tb

I have a fair number of badly designed / implemented usb-c devices with this problem (not all from fly-by-night companies, my Philips water flosser is a glaring example). I have a couple of small metal-enclosed male C to female C adapters (which don't have an exposed circuit board) that do the same thing as the Adafruit version.

m-p-3

I hate my Powkiddy retro game console because of this. What's the point of a portable console if it's doesn't work with all the USB-C cable I have? I'm so annoyed they cheaped out that I don't even plan on buying anything from them again.

summermusic

I've fixed this issue by using a Micro-USB to USB-C adapter