What number is the middle pin used for PWM, for Arduino Shiled

Other Hardware General Electronics
1

Greetings,

I wrote a program for my robotic arm in Arduino Mega and build an Android app to command via bluetooth.

Everything works fine ( tested with a servo motor for every axis ).
Because there are big currents I need to use a PCB shield, but the orange connetors do not have a number for me middle pin which is used for PWM ( see foto attached ).

Do you have a reference so that I can indentify the pin number?

Arduino2.jpg
Arduino2.jpg2100×2800 1.33 MB

2

Hi,
Can you post link to where you purchased the shield?

Thanks.. Tom... :slight_smile:

3

Sure,

Best regards,
SoDA

4

Hi,
Where did you get this?

Arduino2.jpg
Arduino2.jpg2100×2800 1.33 MB

If it came with the kit, where is the kit assembly instructions.

Tom.. :slight_smile:

5

Hi,
Do you have a DMM?
If so use it to check each middle pin on the servo PCB plug and the pin going to the Arduino.

Or look on the underside of the PCB and follow the traces.

arduino-tinkerkit-braccio-8.jpg
arduino-tinkerkit-braccio-8.jpg650×650 52.7 KB

Tom... :slight_smile:

arduino-tinkerkit-braccio-8.jpg
arduino-tinkerkit-braccio-8.jpg650×650 52.7 KB

6

Greetings Tom and thank you for the short answer,

I identified, the PWM pin like you suggested but it seems that the other to pins from the connector doesn't transmit the 5V and the Ground.

I tested it with an multimeeter and it shows 0V .

7

Continuity test between Arduino pins and PWM pin on each connector.

Or follow the tracks.

8

Thank you guys.

It works like a charm :slight_smile: