Device for making wired keyboards wireless

Projects Discussion and Showcase Device Hacking
1

(M) is from the keyboard, the relay i use is the songle 5v (without any pcb), have not figured what capacitor i use yet.

This thing is designed to receive and send data from the (M) either using usb-c or with bluetooth and get power from usb-c or from lithium polymer battery.

My question is, will this work ?. Because, i have a strange suspicion that the relay won't work properly in parallel.....

IMG20220524173809
IMG202205241738091920×909 77.7 KB

(I'm a newbie, so i don't understand most of the electrical mechanics ;p)

Any recommendation is welcomed !

2

then learn it first

4

That's why i'm here xd.

5

Let me rephrase the word a bit, will the relay work ? I can figure the other thing myself.

Any recommendation is welcomed <3.

-p.s : the part have not arrived, so i can't test it yet, hence why i'm asking, so i didn't fry any compinent in the process of making it xd.

6

IMG_20220525_112712
IMG_20220525_1127121920×1329 121 KB

I learned electronics in general, but still not sure if the relay will work or not. Only one way to find out i guess xd

7

What exactly is M?

I doubt it will work; the HC-06 uses serial interface for communication and the USB-C uses the, hmmm, USB interface.

What are the vague blocks at the right under M?

8

A 6 pin button switch. M for pin that come out of the keyboard, i guess i need an intrepreter to translate that, any suggestion to what chip/ic/or device should i use for that ?

9

Relay will work, why not. Whole concept will not. Trying to guess right schematic without a basic knowledge is bad idea.

10

Can you give me link for technical book or documentation on how electronics component work and behave ? Google is not very kind in this kind of subject.... I will be gratefull if you provide me with some material i can learn tho ! <3

11

I decided to go with esp32-S2 because it seems to have internal usb controller build in them that i can use for this (also, it's general purpose, so i can always scrap it for other project if somehow it didn't work), still are confused on how relay behave on parallel or methods to isolate it from...... Burning..... i guess xp.

12
13

Thanks ! Really appreciated ! <3

14

Holy, i would've shorted all the relay if i continue with my current design. With my current knowledge, i need to put them on series because i don't need the immediate property (and the problem that parallel design brings) Thank you for your knowledge great sir ! <3
*Edit : i also don't know that relay stores energy.....
*Edit 2 : i order some beefy diode in case of the current surge becoming problematic, i will experiment a little before putting it to work xp.

15

↓ ↓ Does your keyboard have this sort of plug ↓ ↓

image
image750×577 44.1 KB

16

Sadly no, it's standard usb-A 2.1 (that i'm gonna switch to usb-c (note : i know where to put the 5.1Kohm resistor, it should be ok), i ordered the esp32 to deal with that.

17

I keep forgetting how the reply button work xd

18

I'd rather that people would quote in a general Reply.
(But, that's me.)

1 Like
19

Will do xd

20

@killerking93

Be aware that if you quote the complete last reply, the forum software will remove it if the quote is the first thing in the reply.

In this reply, I added your name first to prevent that.

If the last reply is long, quote different pieces and type a reply under each; next post.

21

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.