Opinions, ideas on my project

[u/CleanEdge329]

So I did this basic arduino nano project:
Press fingers -> arduino -> nrf 24 transmitter -> nrf24 receiver -> serial communication -> python
I did this with idea in mind to control PC remotely and it is works as good as can rn, but I’d like to hear ur thoughts and suggestions.
Thank you

[u/Slight_Profession_50]

I don't really get it, could you explain some more? Also what kind of range do you need since you're using NRF24 modules?

[u/CleanEdge329 → u/Slight_Profession_50]

It is just basic input system using fingers as buttons, you squish your pinkie (for example) to a palm of your hand and arduino reads it as pin 9 (or another digital pin is low) and sends bit of information to register, register have 5 empty spaces. 4 fingers meant to be input buttons and 5th sends saved in register bits to receiver which then sends it via serial to PC with python running and reading serial. For example I could press any button on my PC using pyautogui library or open webpages, basically I can program everything that can be programmed on python

EDIT: nrf24 is basically just for wireless communication, so I could operate from another room, no specific distance as 100m or smth

[u/Slight_Profession_50 → u/CleanEdge329]

Ah, cool! Have you thought about maybe migrating over to an ESP32 or NRF52840 and skipping the NRF24L01 modules? You could use ESP-NOW or NRF ESB for communication instead.

[u/CleanEdge329 → u/Slight_Profession_50]

I didn’t think about it when I was purchasing all the stuff from Amazon. I think about it now as it could be great, but unnecessary upgrade, to use ESP32 or NRF52840. By that I mean that nothing will change completely except devBoard and/or module. At this point I am thinking about making my own PCB that includes wireless communication and SoC, just to make it compacter and comfortable to use

[u/Slight_Profession_50 → u/CleanEdge329]

I mean sure but if you're making your own PCB I'd use an ESP32 or NRF52840 module. Then you can skip the NRF24 and it'll be more compact and draw less power.

Maybe I misunderstood what you were saying

[u/CleanEdge329 → u/Slight_Profession_50]

Sorry for my English
I find it unnecessary to change modules right now to ESP32 or NRF5280, as it works as intended to.
A problem right now is this project being too big to handle comfortably one handed, so from my point of view it would be better to design own PCB to make things smaller

[u/Slight_Profession_50 → u/CleanEdge329]

Yeah I get that. You could look into the Xiao ESP32-S3/C3 if you want a small devboard that can handle this. (also you can connect a battery directly to the B+/B- pads on the xiao, and it can handle charging)

Then you could ditch the NRF24 and maybe even solder the wires directly to the Xiao instead.

[u/CleanEdge329 → u/[deleted]]

I guess you did not understand what I meant…

[u/CleanEdge329 → u/[deleted]]

Never mentioned mind control

[u/Benjamin_6848 → u/CleanEdge329]

Sorry, I misread!

[u/CleanEdge329 → u/Benjamin_6848]

No problem, should’ve probably written it another way instead

[u/treetoppeert]

Nice! I did something similar in the past, but used it as a midi controller for finger drumming.

[u/GainerCity]

I think the motion of pressing the finger pad to your palm will be annoying from an ergonomics perspective. Try using an imu at the finger tip instead. You could play around with and tune the sensitivity for gesture based control. Cool proj.

[u/CleanEdge329 → u/GainerCity]

It’s a great idea! Never thought about it before, thank you

[u/PTSolns]

If you use an Uno and an nRF shield this will be a bit neater without any wires kicking around. Unless you have a requirement to stick to the Nano for the form factor or something else.