HUNGRY ROBOT - Coin Eating Robot! (3D PRINTER, ARDUINO, SENSOR, SERVO)

I really love to make use-for-nothing robots such as Drinky (Drinking buddy robot). I want to make a robot for emotional purpose not for functional. This is fun, makes smile and feels good.

This robot is also one of useless robot but, I'd like to make a funny robot! There are many coin-eating robots (Robie). I'm going to make it by using 3d printer and an Arduino. All source code and 3d printing modeling files are opensource. Feel free to make it by yourselves.

[ Instruction ]

• Source Code https://github.com/happythingsmaker/TrashEatingRo...
• 3D printing files https://www.thingiverse.com/thing:282445

[ Parts and Tools]

• https://eunchan.me/Hungry-Robot-1bac36202aae469e80...

Install Arduino IDE

• https://www.arduino.cc/en/Main/Software

Install CH340 Driver (for Chinese version)

• http://www.wch.cn/download/CH341SER_ZIP.html

DOWNLOAD - source code

• https://github.com/happythingsmaker/TrashEatingRob...

Select board / Processor / Com port

• Select Arduino Nano ATmega328P (Old Bootloader)

plug your arduino nano

find / select emerging com port

Hit the upload button

Download 3d modeling files from Thingiverse

• https://www.thingiverse.com/thing:2824451

Print all parts one by one

• Brim setting needs at least 1 mm

In this circuit, all parts are connected with Female - Female Dupont Cable. In order to save space in the robot, we need to cut and re-wire manually.

A servo motor uses 3 pins. Vcc and GND is essential. A PWM pin must be allocated with the servo motor. In this project, pin 13 is used.

The sensor is an infrared sensor. The sensor uses 3 wires as well. In order to read distance from an object, the arduino neeeds to read an analog input. In this project, A7 pin is allocated.

In this circuit, all parts are connected with female-female Dupont cable.

in order to save space in the robot we need to cut and rewire manually.

This sensor is an infrared sensor The sensor uses three wires.

in order to read distance from an object, the Arduino needs to read analog signal from this sensor.

we are going to use pin A7 for obtaining the sensor value

A servo motor uses three pins. VCC ground and PWM.

A pwm pin from the Arduino must be allocated with the servo motor. In this project we are going to use pin 13.

The black one is a horn from servo motor. We need to use the screwdriver and screw bolt.

and fix the motor with the body.

Use the cable tie from inside to outside.

cut the rest of cable tie. it's very simple you don't need to use bolt anymore.

I'm gonna assemble the head part in the same way.

Put the cable tie through the hole and use one more cable tie.

Check the head moves well. Cut the rest of them

This part is most important part. This is a link and it links from head to body. Assemble them together in same way. Try some move

Make sure the color, location and pin numbers

make sure the colors

And then, assemble the cover

I used Blu Tack

This is full - long - take video (*just in case)