MICRO USB TO USB C ADAPTER SCHEMATIC

Micro USB Pinout, Because Everything is Terrible — Never
Jul 21, 2015You would think that when a great company sells a micro USB plug, they would publish a very clear, concise guide on how to wire it up. Well, they don’t, and I had to dig around all over the Internet to find enough information to clear things up. So now, you don’t have to.Author: Jason FoxPhone: (747) 666-5369Location: 901 South Streeper Street Baltimore, MD, 21224 United States
USB C to USB A pinout - Stack Exchange
In USB C, the CC pins handle this, and pulling them to ground with a 5K resistor will initiate OTG HOST mode on the other side of the link. @alichen plurals. Nice catch. Pulling both CC pins to ground with a 5K resistor places the device in OTG mode if the device supports OTG mode.