How can I send signals to the cobot from an arduino and the othor way around?

maxhuizing · February 2021

Hi,

I want the cobot to send a signal to my arduino so that the arduino knows when to use the steppermotor. Is it as easy to just have a single wire between the cobot and the arduino??

Hope someone could help

Max Huizing

bcastets · February 2021

Arduino have 13 IO pins with voltage of 0 to 5V.
UR controller also have IO but the voltage is 0 to 24V.

Image: https://www.arduino.cc/en/uploads/Reference/arduino_board.png

Image: https://us.v-cdn.net/6027406/uploads/editor/sf/5eea3vg6cnx4.jpg

You could connect an IO output of UR controller to the arduino via a relay.

UR output goes high (24V)
Under the 24V the relay switch on
With relay on the input pin of the arduino is supplied with 5V

Here below is an illustration of a possible relay connection.

Image: https://us.v-cdn.net/6027406/uploads/editor/0f/fq55upc3in4x.jpg

maxhuizing · February 2021

which relay would you advise me to buy??

bcastets · February 2021

I guess something like this would be ok:
https://www.digikey.ca/en/products/detail/omron-electronics-inc-emc-div/G5Q-1A4-DC24/355242

You need to have a coil which activate at 24V.

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How can I send signals to the cobot from an arduino and the othor way around?

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