Published February 1, 2019 © MIT

ESPlorer I - Arduino Off-Road Robot

3D-printed robot, controlled by an ESP32 with web control, camera, off-road crawler suspension and more.

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Things used in this project

Can be any ESP32 dev module with battery connector

Can be DRV8833, DRV8825, and others w/ 4 inputs only

Linear Regulator (7805)

Can by any MPU6050

Li-Ion Battery 1000mAh

Can be >= 1000 mAh (I used 2000)

Battery Lipo 500 mAh

To avoid ESP32 crash on drop voltages of DC motors

DC motor (generic)

Tires for robot

Better if have a battery connector on dev module

3D Printer (generic)

I have one robot plataform, metal and rigid.

I want use this in off road, more interesting :-)

But with rigid chassis no good performance on off road.

Because this I made my first robot plataform, 3D printed, with off road crawler suspension.

And I made one firmware in ESP32 Arduino, with advanced features:

Web control (not need an app, just one browser)
Car control by virtual joystick (It is good due you do not need to see the screen to touch the control buttons and very fun)
Another virtual joystick to control the servo of camera
Slow speed mode, using PWM over PWM, to give slow speeds but high torque.
And More....

See it on action (off road):

ESPlorer I robot