Reddit reviews AmazonBasics USB Type-C to Micro-B 2.0 Charger Cable - 3 Feet (0.9 Meters) - White
We found 3 Reddit comments about AmazonBasics USB Type-C to Micro-B 2.0 Charger Cable - 3 Feet (0.9 Meters) - White. Here are the top ones, ranked by their Reddit score.
Connect a computer with a Type-C USB port (MacBook, Chromebook Pixel, Galaxy Note 7, etc.) to a Micro-B USB 2.0 enabled deviceOffers reliable connectivity for easy charging or syncing of a tablet, smartphone, digital camera, or legacy USB peripheral device with Micro USBReversible design - easily insert the Type-C connector into any Type-C enabled device (does not matter which side is up)Type-C port is half the width and one-third the height of a standard USB-A connector (slightly larger compared to Lightning or Micro-USB ports)Up to 480 Mbps data transfer speed; power output up to 5V, 3 AmpCertified by USB-IF to be compliant with USB 2.0 Standard; backed by an AmazonBasics 1-Year Limited Warranty
If you harvested a male plug from a USB-A to USB-C cable, that plug has the wrong resistor configuration for what you want to do here.
The A-to-C cable has a single resistor called an Rp, with a value of 56 kΩ, tied between the CC pin and the Vbus pin. The cable is used to convert a USB-A power source (like a phone charger) and data host (like your PC's USB-A port) to a connect to a USB-C sink like your phone.
In this case, you actually want the USB-C port on your phone to act as a power source, so your keyboard needs a pull-down resistor, in the spec called a Rd resistor, with value 5.1 kΩ, sitting between CC and Gnd.
In the parlance of the USB Type-C spec, your A-to-C cable was a "Legacy Host Adapter" whereas what you needed to harvest from is a "Legacy Device Adapter"
Basically, if you took this cable, and sliced off the C plug and spliced like you did, it'll probably work:
https://www.amazon.com/AmazonBasics-USB-Type-C-Micro-B-Cable/dp/B01GGKYD4Q
Type C to HDMI cable (not a dongle), $17
Type C to micro USB cable (not a dongle), $7
Wait a minute.
You are talking of this http://www.myinnergie.com/us/product/100 cable which is not exciting. It's just USB C to Micro USB. https://www.amazon.com/AmazonBasics-USB-Type-C-Micro-B-Cable/dp/B01GGKYD4Q
This is the http://www.myinnergie.com/sg/product/137 exciting cable.