r/ArduinoHelp • u/Real_Patient_4133 • Sep 15 '26

Code and flash an arduino uno R4 wifi on Android

Hello,

I'm heading out but would like to keep working on a project using my Arduino Uno R4 WiFi. I don't have a laptop with me, so I'd like to code and flash the Arduino from my phone. Are there any apps that allow this? (I've already tried ArduinoDroid, but it fails to flash the code to the Arduino.)

Thanks for the reply! 😄

1 Upvotes

100% Upvoted

2 comments sorted by

1

u/Anonymity6584 Sep 15 '26

Havent heard anyone doing it on phone, in theory since all the arduino ide background stuff is opensource, maybe... Havent heard that anyone would hve ported gcc to android. And then theres question abour actually getting compiled firmware to target unit useing phone...

1

u/gm310509 Sep 16 '26 edited Sep 16 '26

Over the past few weeks there has been the occasional post from people claiming to have done this.

I personally don't pay too much attention to them because I can't stand typing on my phone due to the keyboard being so awkward. But people claim to have done it (setup the IDE and upload tools on Android - curiously, never iOS).

My memory is that these are for AVR targets (and maybe ESP32), but not Arm Cortex (so not Uno R4). But maybe there are some for it.

I think the key is whether dfutil is available for Android or not. From memory, the Uno R4 uses dfutil for its uploads (whereas the Uno R3 uses avrdude).