Hand Training Robot

First, we just wanted to program on an Arduino Uno to command our device. But since we didn’t want to put an extra box on a side and it didn’t fit inside the main piece of the system, we decided to design a custom PCB that would be able to control everything. Indeed, we didn’t need every components of the Arduino and we just took the bare necessities to put on a PCB adjusted to the dimensions of the device.

Here after you can see the final PCB with the legend of all the components we used:

 

 

 

1	Input power supply 12V	Used for the initial 12V supply of the PCB
2	Resistors 270 Ω	To limit the current of the LEDS
3	Resistor 10 kΩ	Essential for the utilization of the choose button
4	Input for button	To connect the choose button that validates the choices of the user near the LCD on the top of the device
5	Output to the joystick	To have a connection to the joystick when we press the handle for the Video Game mode
6	Output for LED 5mm	To connect the green LED 5mm for the Reflex mode
7	Output for LED 3mm	To connect the red LED 3mm that shows that the device is connected and ready to be used
8	Quartz 16MHz	Mandatory for the µC to have a clock for its time basis
9	Capacitors 22pF	Mandatory for the use of the clock of the µC
10	Input for linear potentiometer 50 kΩ	Connected to the handle to show its position to the µC
11	Resistor 1 MΩ	Mandatory for the use of the clock of the µC
12	Capacitor 100nF	Mandatory for analogical signals and a good alimentation of the µC
13	Output for communication with computer	To connect the µC to the Arduino connected to the computer to program the µC
14	Resistor 10 kΩ	Essential for the use of the reset button
15	Potentiometer 10 kΩ	To settle the contrast of the LCD display
16	Ouput for LCD display	To easily connect all the wires of the LCD display to the PCB
17	Input for rotational potentiometer 10 kΩ	To say to the µC the parameters chosen by the user
18	Reset button	To reset the PCB
19	Output for servomotor	To connect the alimentation and the command of the servomotor
20	Capacitor 100 nF	Essential for the 5V supply needed by the PCB
21	Capacitors 47 µF	Essential for the 5V supply needed by the PCB
22	Transistor 7805DT	To regulate and transform the 12V into 5V needed for the PCB
23	µC ATMEGA8 : AT90S4433P	To command and receive information of all the components connected to the PCB
24	Capacitor 100 nF	Essential for the 5V supply needed by the PCB
25	Capacitors 47 µF	Essential for the 5V supply needed by the PCB
26	Diode rectifier M7	Essential for the transformation from 12V to 5V
27	Transistor 7805DT	To regulate and transform the 12V into 5V needed by the PCB