Cheap, easy to print, walking and dancing robot with Bluetooth Made by Ayunken
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updated March 6, 2023

Description

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Robot, inspired by Bob and Zowi with bluetooth functionality to be controlled from an Android phone.

You need, printed parts and electronics:

4 x 9g servos

micro controller of choice (Arduino)

battery (4x AAs)

HC-SR04 - ultrasonic ranging module

HC-05 - Bluetooth module

For now it is a prototype, and still a lot of things to improve:

-> Add the LED array.

-> Add a new base with support for standard batteries

Version of Bobwi with all parts modified to fit SG90 servos (already had them) and an 8x8 LED array with MAX7219 driver (to use 6x5 slab as the original Zowi) and buttons and switch on the back. When using the SG90 plastic I preferred to use the adapter rods so that the joints are better fixed.

I have modified Ayunkowi's housings and legs to make them more resistant.

I have reinforced the supports of the servos (SG90) in the body because they broke easily,

I have made the legs shorter and more resistant.

I have redesigned the head so that it fits the proximity sensor and is fixed, as well as I have put a support for the Bluetooth card and the keypad.

At the top there are 4 supports for the Arduino shield.

The head is higher than normal (7mm) so that 2 18650 batteries enter on top of the servos so that you do not have to disassemble the robot when changing batteries.

To charge it, it uses a plate from a power bank with 5V 2A output, from the positive it goes through the switch to then go to any 5V pin of the shield. The negative to any GND pin of the shield.

We invested lots of time and resources to provide open source code, software and hardware, please support this project by just giving us a ❤ Like and share and you are welcome to be a part of this friendly community of robot builders, teachers and makers. Join today our Otto Builder community

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