3D printed robotic hand controlled with nrf24l01

Projects General Guidance
1

Hello guys.
I'm doing a school project.
So this project is about a 3d printed arm controlled with my hand using a glove with flex sensors.
The parts i am using for the 3d printed arm are arduino uno, 5x servors mgr 996r 360 degrees and nrf24l01, 2x 3.7v baterries.
And for the glove i am using 5x flex sensors 4.5 inch , arduino nano, nrf24l01,9v battery.
this are the connection for the glove Screenshot - 7ca8fdebe3c982590a5321fca3365e3e - Gyazo excluding the mpu6050.
And this is for the 3d printed arm Screenshot - 09fb300ef4493ed20eaebb96199df496 - Gyazo without the 6th servo.
Screenshot - 9f3495a79e163ed225d13d92b03b26e0 - Gyazo this is the code for the glove
Screenshot - 465c9d678cc9650e9f0dda6fdbb9c45d - Gyazo and this is for the 3d printed arm.
The problem is the hand doesnt work at all..
I dont know what to do.
Any help is well welcome.
Thank you for your time and your help.

2

Please post your sketch and schematic here to avoid the need to visit another site

What do you mean by

3

The servos doesnt rotate when im using the glove

7ca8fdebe3c982590a5321fca3365e3e
7ca8fdebe3c982590a5321fca3365e3e608×507 195 KB

09fb300ef4493ed20eaebb96199df496
9f3495a79e163ed225d13d92b03b26e0
9f3495a79e163ed225d13d92b03b26e0900×1017 19.5 KB

465c9d678cc9650e9f0dda6fdbb9c45d
465c9d678cc9650e9f0dda6fdbb9c45d968×838 26.7 KB

4

Please do not post pictures of code

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the < CODE/ > icon above the compose window) to make it easier to read and copy for examination

https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum

Is the project really powered by a PP3 9V battery ? If so, then it is completely unsuitable as it cannot supply the required current

Is there a common GND connection between the servos and the Arduino as there should be ?

5

Yes the circuit on the glove is powered by 9v.
And i did everything the same on the robotic hand as in the schematic

6

I see a number of problems

  • using the low power 9V battery
  • no common GND between the servos and Arduino
  • use of 360 degree servos which is unlikely to be want is required
  • inadequate power for the NRF24 module

I suggest that you start by getting a single servo working with the Sweep example in the IDE. Due to the nature of the servo it will not sweep but change direction and speed, which will prove that it is working

7

the MG996R 180 degrees should be good?

8

9V battery?

PP3 NO2

9

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