Danbo-PR-Robot-V1.0

Description

Danbo pr robot is a robot that distributes flyers among people. It makes a speech about pixels. We first use 2 arduino uno for the transmitting and receiving parts, we connect between them using nrf. We use driver circuits for motors and amplifier circuit for speaker.

Components used

1- Arduino Uno https://ram-e-shop.com/product/kit-arduino-uno/

2- Dc Motors https://store.fut-electronics.com/products/dc-motor-with-metal-gear-3-2-kg-cm-133-rpm-6v?_pos=33&_sid=25a962ad2&_ss=r

3- Servo Motor (15 kg.cm) https://ram-e-shop.com/product/servo-motor-with-magnetic-encoder-360-15-5-kg-cm-metal-gears-fb5311m/

4-Servo 10kg.cm https://ram-e-shop.com/product/servo-mg995/

5- lm386 https://free-electronic.com/product/lm741cn/

6- Ceramic capacitor 100n f https://free-electronic.com/product/ceramic-capacitor-100nf-50v/

7- Electrolytic capacitor 1000u https://free-electronic.com/product/irf540n/

8- Electrolytic capacitor 100uf https://free-electronic.com/product/electrolytic-capacitor-100uf-50v/

9- IRF540N https://free-electronic.com/product/irf540n/

10- NRF 24L01 https://free-electronic.com/product/nrf24l01-wireless-module-2-4-ghz-rf-transceiver/

11 - Variable resistance(10k) https://free-electronic.com/product/potentiometer-wth118-10-kohm/

12- Resistance 470 ohm https://free-electronic.com/product/resistor-470-ohm-3w/

13- Resistance 10k ohm https://free-electronic.com/product/resistor-10-kohm-3w/

14- Diode ln4007

15- Resistance 5k

Mechanical structure

1- 6mm wood (For body)

2- 3mm wood (For head)

3- 6mm acrylic (For gears)

4- M4 Screws (4m)

5- M4 nuts

6- 15 Cm Wheels

Steps to build the mechanical structure

1- Create 3D Model

We create a 3D model about Danbo's skeleton using “Solidworks" It would be easier for us to confirm every servo's position and angle of movement in the 3D model. After creating the 3D model, we convert it to 2D for laser cutting. We used 6mm(thickness) wood to laser cut the Danbo body and 3mm (thickness) wood to the Danbo head.

(Hint: You can find the design in the epo, if you are using older version of solidWorks please download the IGS files and drag it and drop it in your solidworks app)

(Hint: you can print the body using the Dxf files in the repo)

The DXfile in google drive: https://drive.google.com/drive/folders/12dDjX8gE220Q_c95igGJB5SD7zqggt2-?usp=sharing

2- Servo installation: There are 2 servos on Danbo's neck, 2 servos for the shoulders

3- Flyers Mechanism : Assemble the flyer mechanism as shoen in the design

4- Gearbox design:

Photos.Videos.-.Google.Drive.mp4

By Gear generator and some calculations, we Design gear box to give us desired velocity and torque. By Gear generator and some calculations, we Design gear box to give us desired velocity and torque.

5- Assemble the body and the head:

videoplayback_2.mp4

1- Fix the head plates with screws and nuts

2- Fix the legs together with the body and base

3- Put the wheels and gearbox together in the base plate

4- Fix the arm servos with the arm structure and head servo with the head structure.

Control

1- Transmitter Stage controller In this stage we will design the controller of the robot we begin with the circuit design

Components used in this circuit: In this circuit we use: -Arduino UNO

-nrf24l01 module

-two joysticks

• push bottoms

Schematic:

PCB layout:

Transmitter code of the Arduino: Uplad the code to your microcontroller, you can find the code in the repo

Shape of the shield:

Driver circuit:

Driver PCB Design:

2- Receiver stage: In this stage we will get from the controller the buffers and begin to control the robot by several of instructions

Components used in this circuit: In this stage we use: -Arduino uno

-nrf 24l01 module

-our driver circuits.

• 3 dc motor.

• 2 servo motor

Receiver code: Uplad the code to your microcontroller, you can find the code in the repo

3- Speakers Amplifier circuit:

Amplifier PCB We use this circuit in order to amplify the sound coming from the speaker.

Speaker's code: Uplad the code to your microcontroller, you can find the code in the repo

Pixels'21 Projects video

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