I’ve looked pretty well everywhere and I can’t find anything that confirms or denies arduino’s ability to communicate with the vex cortex. My idea is to have an arduino output a variable voltage to activate LEDs based on an ultrasonic reading. The ultrasonic sensors can rotate and the amount voltag…

I’m assuming you’re talking about a competition that is not VRC, because use of an Arduino in VRC is strictly illegal. Yes, the configuration you describe is quite doable. The analog sensor ports on the Cortex read a variable voltage between 0 and 5 V. Also, you may be aware already, but do note t…

Yes, this is technically possible. You should be able to use the Arduino’s PWM outputs coupled with an RC filter to create an analog voltage to send to the VEX Cortex (or V5 brain). Here’s a guide about RC filters: https://www.instructables.com/id/Arduino-RC-Circuit-PWM-to-analog-DC/ Note that the …

Is this for the Open division in US OPEN or similar? Or just a project you’re working on in the off-season?

[image] Barin: because use of an Arduino in VRC is strictly illegal. …unless you’re in VEX-U… can’t tell from the user profile.

Well he said he was using the cortex which is illegal in VEX-U I believe.

Right. In VEX-U, the Adrino is legal but the Cortex is not. I should have read it closer.

To answer the OP question, yes it’s been done a number of times. one place to start is here [image] How to send data from Arduino to Cortex via UART using RobotC? General Forum There was this https://vexforum.com/t/cortex-brain-communicating-with-devices/23714/1 that ha…

Yes it works (interfacing the two platforms), I haven’t tried the code since Robot C 4.0 came out so the code would probably need some minor adjustments. I could dig it up if someone was interested. - I’m moving on to the V5 now since they are shipping again, our team will be moving to that platfo…

Can I have an Arduino communicate directly with a cortex?

VEX V5 Technical Support

jpearman March 15, 2019, 2:31am 8

To answer the OP question, yes it’s been done a number of times.
one place to start is here