Android control Arduino over usb

Hello there..

I need help...i m trying to make an app on android studio that i can connect an arduino with usb and control relays with toggle buttons. I tried everything i found on the internet but nothing worked. Anyone that worked on a similar project to help? I don't want to write on a command line and send it i want to have togglebuttons and went pressed turn on relay or off

I put USB between Arduino and the phone because it will stay on one place. No need for wifi or bluetooth

Other apps on GooglePlayStore work with the arduino but I don't want them like those.

I wrote the app just can't made the connection.

Thanks

fmilburn over 4 years ago

Hi Nicolas,

Have you tried using Processing? I haven’t tried it with Android but have used it with Arduino to connect by USB with other OS. A search for Android Processing Arduino turns up a number of hits.
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BigG over 4 years ago

I assume from your comment "Other apps on GooglePlayStore work with the arduino but I don't want them like those" that you've confirmed that your phone/tablet has OTG capability (https://www.carlcare.com/global/tips-detail/how-to-fix-usb-otg-android-not-working/ )

I'd suggest searching online about Android OTG/USB Host mode and connecting your phone/tablet to Arduino. Here's two results I pulled off Google.
https://developer.android.com/guide/topics/connectivity/usb
https://www.allaboutcircuits.com/projects/communicate-with-your-arduino-through-android/
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nicolaoscon96 over 4 years ago in reply to BigG

My device support OTG, I have already connected the arduino to my phone using ArduinoDroid IDE and i can send and receive data from the arduino.

I m just trying to make the serial communication between my app and the arduino
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BigG over 4 years ago in reply to nicolaoscon96

Have you tried or are you using Flutter with Android Studio to develop your app? If so, you could use this widget to handle serial communication: https://pub.dev/packages/usb_serial
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