Wire type C to type A 2.0

[Loli Pits]

I have a wired mechanical keyboard... I want to make a type c port for it and make the wire removeable... I found a type c port online for cheap but theres like 24 pinouts... I found a guide online but have no idea how to interpret it... can someone please help... where do I connect to 4 wires from the 2.0 cable to the type C port... and it would really help if you could help me how to read the table below...

 

*do i just wire the 4 cables straight to the port? or do i have to wire some resistors (read some vague thingiesbthat you have to wire resistors for it to work)

Edited October 7, 2020 by Loli Pits

[WereCatf]

1 minute ago, Loli Pits said:

can someone please help

Why don't you just simply buy a type-C -> type-A - adapter?

[Loli Pits]

4 minutes ago, WereCatf said:

Why don't you just simply buy a type-C -> type-A - adapter?

i want to make the cable from the keyboard removeable... in order to do that i need to make a type c port for it... gonna wire the port to the keyboard... i want to make the cable removeable so that I can use custom cables for it like most keyboard enthusiasts do (sleeved cables/coiled cables/cables with aviators)... i don't have a big budget so im doing it myself... also its fun to diy...

Edited October 7, 2020 by Loli Pits

[Enderman]

You use the USB 2.0 D+ and D- pins for data as well as the GND and Vbus for power

[Loli Pits]

26 minutes ago, Enderman said:

You use the USB 2.0 D+ and D- pins for data as well as the GND and Vbus for power

thank you very much for this... btw vbus is the +5v on usb 2.0 right? there seems to be 2 of every pin... do i need to solder to both? or can i just solder to any 1 of them?

[Enderman]

13 minutes ago, Loli Pits said:

thank you very much for this... btw vbus is the +5v on usb 2.0 right? there seems to be 2 of every pin... do i need to solder to both? or can i just solder to any 1 of them?

Yes Vbus is 5v.

You need to solder both because USB C is reversible so when you plug it in upside down you still want it to work.

[Loli Pits]

2 minutes ago, Enderman said:

Yes Vbus is 5v.

You need to solder both because USB C is reversible so when you plug it in upside down you still want it to work.

oh yeah... that actually makes sense lol... thanks

[Hackentosher]

9 hours ago, Loli Pits said:

thank you very much for this... btw vbus is the +5v on usb 2.0 right? there seems to be 2 of every pin... do i need to solder to both? or can i just solder to any 1 of them?

Yes, but USB C has a range of acceptable voltages so it's labeled VBUS. Depending on your application, you may need to place some configuration pull down resistors on pins CC1 and CC2, but if you get something like this you should be good https://www.adafruit.com/product/4090.

[Loli Pits]

i am so sorry for bringing this post back up... i found out that my keyboard have 5 wires on it... i thought it would only just be 4... it is labeled... i believe vcc (what does this stand for?) is bus power? what does sg mean and where do i solder it to?

 

 

[Hackentosher]

On 10/15/2020 at 7:14 AM, Loli Pits said:

i am so sorry for bringing this post back up... i found out that my keyboard have 5 wires on it... i thought it would only just be 4... it is labeled... i believe vcc (what does this stand for?) is bus power? what does sg mean and where do i solder it to?

 

The SG pin is for USB OTG. I think you're supposed to ground it or throw a pull down resistor on it, but I'm not sure. VCC is the power pin of USB, often also called VUSB or VBUS. VCC is a common term for the main power rail for circuits, especially when the power rail is common to several devices. The term VCC itself comes from transistors, it's supposed to stand for Voltage Common Collector, or the voltage you connect to several collectors in a multi-transistor circuit.

[mariushm]

No, in this case I don't think it's for usb on the go.

It's more likely SG means shielding ground or something like that. If this is the case, the exterior of the usb connector AND the mesh sleeve (or braid?) that surrounds the wires in the usb cable gets connected to that pin, usually through a resistor and/or some esd diode (to protect against static discharge aka esd)

 

Vcc is voltage, sometimes is called Vdd ... GND is ground, sometimes it's called Vss , D- and D+ are data wires for the usb. If you get them wrong the device won't work but won't break.

 

You can use a multimeter in continuity mode, test between ground and sg pin, most likely they're just connected together.

 

Example cable:  https://www.digikey.com/en/products/detail/molex/0887388100/2711806

 

The drawing tells you : https://www.molex.com/pdm_docs/sd/887388100_sd.pdf