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Welcome to Otto Builders the community of Otto DIY robot, we share knowledge, solve problems and make all kinds of opensource robots.

Remote control
Remote control

Having issues with installing the App or remote controlling your robot?

Share your questions or problems in this topic and we’ll be here to sort them out as community.

Firmware version for Otto the robot who wants to be strokеd

📑 Attached code and Link to firmware here -

The firmware is based on V11. Suitable for the Otto Plus kit (the circuit must have a Bluetooth module, a touch button and an ultrasonic sensor HC-SR04). The firmware has removed the LED matrix control and other elements that I do not use in my Otto, so it now takes only 68% of the Arduino memory. Otto knows how to respond to your stroking (touching the upper part of the body), and live for a some time satisfied without showing your love. When the time has passed, as soon as... (More)


Congrats you just found a bug, we will fix that in the next release in the meantime

Just copy this folder


Into this folder


and then it should work as you see here:

Newbie here. Can I use Bluetooth with Arduino Nano Every in an Otto Starter? I'm using a BLE 4.0 Bluetooth Module. I've tried uploading the Bluetooth app code with both the "Arduino Nano Every" board and "Arduino Nano (Old Bootloader)" board, but just get error messages.


Hi everyone. How to solve the conflict between IRremote and Buzzer? (Timers Issue) Thanks!!

hi Felipe KSW
Have you found the solution yet?
I had the same problem when adding an additional device command block like a Buzzer or an LED Mouth.


Hello everyone, my name is Josué, i'm from México, let me introduce you to Otto Baymax, i participated in the Otto Remix Challenge 2019 with this small robot, I have added some features and functions to the original code and robot that I wish you could see, what you'll see on this video, is OttoBaymax responding to voice commands and playing some phrases from this well known movie (Latin American dubbing), hope you like it :)