Ritesh test
Winners of the previous Quiz
30/06/2025
lakshya
Class 4
lps
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August 05, 2025
Q1.
You’re building a custom game controller that uses potentiometers. Each joystick contains two potentiometers, one for the x-axis and the other for the y-axis, which allow accurate direction control and smooth maneuvering of the toy plane.
The custom controller you're building contains two joysticks to manage multiple control functions. This setup requires a total of four potentiometers, for example:
- Left X-axis potentiometer – Controls the toy plane’s up and down movement
-
Left Y-axis potentiometer – Controls the toy plane’s left and right movement
-
Right X-axis potentiometer – Moves the toy plane forward and backward
-
Right Y-axis potentiometer – Retracts and extends the landing wheels
Wiring Setup
Each potentiometer in the setup is hooked up like a voltage divider.
One end is connected to 5 volts (Vcc),
The other is grounded at 0 V,
The middle pin,called the wiper,is connected to one of the microcontroller’s analog inputs.
The microcontroller uses an ADC (Analog to Digital Converter) to convert the voltage from the wiper into a digital value ranging from 0 to 1023, where:
-
0 represents 0 V
-
1023 represents 5 V
The custom controller you're building contains two joysticks to manage multiple control functions. This setup requires a total of four potentiometers, for example:
- Left X-axis potentiometer – Controls the toy plane’s up and down movement
-
Left Y-axis potentiometer – Controls the toy plane’s left and right movement
-
Right X-axis potentiometer – Moves the toy plane forward and backward
-
Right Y-axis potentiometer – Retracts and extends the landing wheels
Wiring Setup
Each potentiometer in the setup is hooked up like a voltage divider.
One end is connected to 5 volts (Vcc),
The other is grounded at 0 V,
The middle pin,called the wiper,is connected to one of the microcontroller’s analog inputs.
The microcontroller uses an ADC (Analog to Digital Converter) to convert the voltage from the wiper into a digital value ranging from 0 to 1023, where:
-
0 represents 0 V
-
1023 represents 5 V
The Problem
During testing, you observe that only one of the four potentiometers is working as expected, providing changing analogue values when the joystick is moved producing varying analog readings in response to joystick movement. The remaining three, however, either show constant values or don’t respond at all.
You suspect there may be a wiring issue with these potentiometers — possibly due to incorrect connections or a faulty setup.
The Problem
During testing, you observe that only one of the four potentiometers is working as expected, providing changing analogue values when the joystick is moved producing varying analog readings in response to joystick movement. The remaining three, however, either show constant values or don’t respond at all.
You suspect there may be a wiring issue with these potentiometers — possibly due to incorrect connections or a faulty setup.
Based on the potentiometer wiring configurations given below, identify which one is functioning correctly.
