FAQ   

Once you are done with the code in the simulator and have checked the simulation working fine in TinkerCAD, you need to upload the code to the Arduino Uno you have on your table and make the same circuit physically. Note that osciloscope, multimeters, resistors of different value will not affect the code. Use resistances more than 100 ohms.

To install the Arduino IDE you need to visit https://www.arduino.cc/en/software and download the compatible version of the IDE. Click on the one your systemis compatible with. Another page will open, click on "Just Download". Once you download it you need to install it.

Step 1: Connect the Arduino  with your system

Step 2: Open IDE

Step 3: Select board, i.e. the COM (Arduino Uno). If it is not showing or showing multiple Arduino Uno then Tools>> Port>> select the COM(Arduino Uno)

Step 4: Remove the default code in IDE, Copy the code and paste your code in IDE and click on "Verify" i.e. a tick mark at the top left corner of your screen.

Step 5: Now click on "Upload" i.e. a arrow sign next to verify.

Step 6: Code uploaded.

If an Arduino is previously used then the code is already there. So to reset the Arduino press the red button for 3 seconds and release. Then you will see few LEDs will blink and it indicates it already been reset.

Step 1: Connect the Arduino  with your system

Step 2: Open IDE

Step 3: Go to Tools> Port

Step 4: Select the COM which has Arduino uno in brackets else select the higher COM.

Step 5: If you still don't see the board in "select Board" then click on drop down and select the same COM.

Step 1: Connect the Arduino  with your system

Step 2: Open IDE

Step 3: Go to Tools> Board> Board Manager

Step 4: Install Arduino Avr Boards. 

Step 5: If 1.8.6 is not suitable and you find same issue select 1.8.5 and install. During Installation it will ask many permissions permit them and click install.

Click here.

This issue may arise if the board is faulty or you haven't uploaded the code or the data ports are short/faulty. To resolve this, change the pins you have selected there in the code. Say for example you have chosen 2,3,4 in your code and in your circuit. once you change the pins physically in circuit you have to change the pin numbers in your code as well.

For an I2C LCD display to work, the I2C address and the I2C backpack to LCD pin mapping must be correct. If the library default settings for either or both are not correct the LCD will not work. You can try to figure out the right pin mapping and use an I2C scanner to find the address. Check the address using I2C scanner and correct the code (e.g.-LiquidCrystal_I2C lcd(0x3F, 16, 2) ; here 3F is the address, it may become 27. These are in Hexadecimal.)

If you have tried all the Uno like similar troubleshooting for the Nano and it is still the same i.e. not working then you need to install ch340g driver for nano.  Click on it to download .zip file.

You will find many bands of color on a resistor.  You have to keep the tolerance band i.e. golden or silver color band (in most cases) on your right hand side and you have to find the values of color as per the above table. The first color's value will be the first digit, then the second one is the second digit and the third one is the multiplier. Total 4 band resistors are mostly available in the lab here.

On a capacitor you will find numbers and letters written on it. In most of the cases the value of the capacitance and the max. operating voltage is mentioned on it. But sometimes you will find values like 103 or 104 and letters like J or K. Lets understand the numerical value first. The first two are for the digits and the last one is the multiplier and the unit will be picoFarad. So here it is 1 0 x1000 pF i.e. 10000pF & 1 0 x10000 i.e. 100000pF. J or K is the tolerance of plus/minus 5% or 10% respectively.

To measure the current in a circuit you need to connect the multimeter in series. Before you do that make sure the red color probe is connected to the A or mA point on multimeter. Then only the multimeter will work as a ammeter.

To measure the voltage in a circuit you need to use the multimeter in parallel. Before you do that make sure the red color probe is connected to the V,ohm point on multimeter. Then only the multimeter will work as a voltmeter.

1 . or OL denotes 'overload'. If you see this on your screen then you need to adjust the range knob/ dial to a higher range because the value you want to measure is higher than the range you have already set. E.g. you have a resistance of 220 ohm and you have set the dial to 200 ohm in multimeter then it will show you 1. or OL because at thi point the multimeter can measure from 0 ohm to 200 ohm. Now you need to set the range knob to 2kohm to measure the resistance. 

If you see 0.00 on your multimeter that means you have set the range to a much higher range than the value you want to measure. You need to set the dial/ knob to a lower range in this case.

If you see 0.00 on your multimeter that means you have set the range to a much higher range than the value you want to measure. You need to set the dial/ knob to a lower range in this case.

It might happen when you export selecting a single body. You can use ctrl+a or you can select all bodies one by one in the 'bodies' section on your left hand side in Fusion360. once you select all bodies go to Files>Export>Choose location> choose filetype (.stl)> Rename> Save.

 Few important slides must be there in your final presentation and demonstration day's slide. It is as follows:

• Title and outline slide

• Problem statement

• Introduction and motivation

• Challenges faced

• Details of the solution

• Codes and Diagrams

• Components used and their main specification

• Videos and photos

• Team members and work distribution

• Learning from the project

• Conclusion and future direction