Arduino 3D Printed Can Robot (one More Object Avoiding Robot)

In this "how to" guide I will show you how to make your own 3D printed Can Robot with the Arduino UNO micro-controller.

This is a remake of the Attiny Canbot that I found at Thingiverse.com by Wingman94 (link here) .

I made my own circuit with ATmega328 IC and I add a buzzer to make a beep tone every time that robot finds an object in front of it. I didn't include the IR remote control function.

This little robot is powered by one 3.7V 500mAh rechargeable battery and can be charged from the builtin charging circuit .

Watch my little robot in action:

Project page - future updates can be found here.

Let's get started!

Step 1: What You Will Need - Hardware

For this project you will need:

Atmega328 (with Arduino UNO bootloader)
28 dip socket
16 MHz crystal oscillator
2x22 pF capacitors
10 kOhm resistor
2 continuous rotation servo FS90R
HC-SR04 ultrasonic sensor
Buzzer
3.7V 500mAh rechargeable battery
Charging circuit
On/Off micro switch
PCB prototype board

*You will also need a TTL to USB module or an Arduino UNO board for the programming procedure.

Tools: You will need a soldering iron and hot melt glue gun and of course a 3D printer.

Step 2: The Circuit

Take your time and make your circuit as small as you can so it can fit inside the can robot.

Step 3: The Code

Connect your circuit with TTL to USB module (or Arduino uno board - note - remove ATmega328) with 5 cables to the programming header. The pins RX and TX must be cross-connected. You can change the speed of your small robot by changing the "speedS=10" variable - line 14.

Download the code from this step and open it with Arduino IDE. Inside you will also find all necessary libraries.