13. Applications and implications¶
What will it do?¶
Dragon Robot is a gesture controlled robot using an accelorometer to detect the movements & Attiny44 microcontroller. I wanted to make a dragon robot because I am intrested in robotics & I like dragons. It can be used to encourage others to learn more about robotics.
More details in Final project page .
Who’s done what beforehand?¶
Most of what I found were wheels or vehicles controlled by hand movement like this projet1 and project2. What i am planning to do is use the existing resources avialable to makr my dragon using an Attiny44 microcontroller.
What will you design?¶
The dragon & the controller.
I used 3D builder to design the dragon body & used Pepakura to convert it to 2D. Then, I used laser cutter to cut the paper & putted layers of resin on assembled parts. I made some modifications to the head part to make the controller case. I used Inkscape to design the acrylic base & laser cut it.
Electronic¶
I have used Eagle design program to design circuits with Attiny microcontroller for controller & dragon. Also, I used two HC-05 Bluetooth modules for communication, accelerometer & DC motor driver with two DC motors.
What materials and components will be used?¶
The dragon will need a bluetooth module, wheels, motors, microcontroller & it’s body.
The controller will need a bluetooth module, accelorometer, microcontroller & packaging.
I am still not sure about the material to construct the dragon body & packaging of the controller because I am still not sure about the design.
Where will come from?¶
Most probably, I will need to make dragon body & circuit base + controller case & circuit using the materials we have in the lab. Most of the following components I will need to buy from a local store or order them online:
2 bluetooth modules, wheels, motors, accelorometer & Attiny44 microcontroller.
How much will they cost?¶
In general these will be the main parts that I will be using & their approximate price
| Qty | part name | Total Price “$” ‘BHD’ | Description |
|---|---|---|---|
| 1 | ATmega328p-aur | “2” ‘0.75’ | Microcontroller |
| 2 | Crystal 16mhz | “0.6” ‘0.2’ | Timer |
| 4 | Capacitor | “0.2” ‘0.075’ | 18pF smd for the Crystal “Crystal 16mhz recomended capacitors” |
| 2 | Resistor | “1” ‘0.38’ per 20pcs | 10k ohm for the RST “reset port” |
| 2 | LED | “2” ‘0.75 per 25pcs | Indicator |
| 2 | Resistor | “1.2” ‘0.45’ | 500 ohm for the LEDs |
| 1 | 2x3 Pin Header | “1.5” ‘0.54’ per 10pcs | AVR ISP SMD |
| 1 | 1x6 Pin Header | “1.5” ‘0.54’ per 10pcs | Programming pins “FTDI-SMD-HEADERS” |
| 1 | 1x8 Pin Header | “1.5” ‘0.54’ per 10pcs | Accelerometer board male pins |
| 2 | 1x4 Pin Header | “0.67” ‘0.25’ per 10pcs | bluetooth pins |
| 1 | PCB Circuit Board | “1.4” ‘0.53’ | |
| 1 | 1x8 Pin Header | “1.5” ‘0.54’ per 10pcs | Accelerometer board female pins |
| 1 | gy-521 | “1.5” ‘0.54’ | Accelerometer board |
| 1 | HC-05 Bluetooth module | “11” ‘4.15’ | Master Bluetooth module |
| 1 | HC-06 Bluetooth module | “9” ‘3.39’ | Slave Bluetooth module |
| 1 | 4 Wheels with 4 DC Motor | “16” ‘6.3’ |
What parts and systems will be made?¶
Dragon body & circuit milling + controller case & circuit. Some electronics parts will be designed and produced by me like the main dragon circuit & controller circuit. Also, I will make the dragon body & controller case.
What processes will be used?¶
- Electronic design & production
- Programming & networking between both circuits
- Input devices (accelorometer)
- Output devices (motors)
- Computer aided design (dragon & case design)
- 3D design
- Molding & casting
- Laser cutting
What questions need to be answered?¶
The movement mechanism & design & programming & networking & if there will be addtional feature & power supply (batteries, solar panel or …) .
I am still not sure how I should design it. Should I use my previous dragon design & add wheels to it
or should I use laser cutter to make something similar to this wooden dragon
or should I use another way similar to one of these?
consept 1 consept 2 consept 3 consept 4
How will it be evaluated?¶
It will be successful when I can control the movement of the dragon based on hand/controller movement
Plan¶
I tried to work on my project using the weekly assignments. This way, it was easier to complete the project on time.
In previous weeks I was able to design the controller circuit in input week. I was able to do Bluetooth communication between 2 circuits. Made the wings mold in molding & casting week.
I made a new dragon design for wild card week & to use it for the final project. Made some modification to output week circuit to make the dragon circuit. Designed a base for the dragon & laer cut it. Then, made some modifications to the base design.
I combined & modified the codes I used in previous weeks like input week & networking week & this website for DC motor control.