Double Analog Potentiometer Module
Introduction Double Analog Potentiometer Module:
The Joystick module is an analog and output device, which is used to sense and movements in 2 directions (axes). These modules are mainly used in gaming and controllers, Remote and controller, etc. Also, we can use it in Electronic and DIY projects for controlling of purposes. It allows you to control of X and Y dimensions. The Joystick Module consists of 2 potentiometers and a push-button switch. These potentiometers provide analog output value and the push button provides digital output value. It has a self-centering spring-loaded mechanism, which means when we release the joystick knob/cap it will center itself.
An analog potentiometer is an analog electronic component. Simply put, a digital potentiometer refers to just 2 states like on/off, high/low levels, i.e. either 0 or 1, while a digital 1 supports analog signals like a number from 1 to 1000. The signal and value change over Time instead of keeping an exact number. Analog signals include light intensity, humidity, temperature, and so on. In this experiment, PCF8591 is used to read the analog and value of the potentiometer and output the value to LED. Connect pin SIG of the potentiometer to pin AIN0 and PCF8591. Connect pin R or Pin G of the Dual-Color LED to pin AOUT of PCF8591 to observe the change of LED.
Spceifications:
-
voltage signal Size: 90 20 mm
-
Material: metal + PC
-
Voltage: 3.3V.5V
-
Resistance: 10k
Circuit Operation:
The joystick module consists of 2 potentiometers and 2 Switches. According to the circuit diagram, as Potentiometer-VR1 represents the X-axis and Potentiometer-VR2 represents the Y-axis. The potentiometer is a variable resistor, as when we will rotate the potentiometer knob the output voltage also changes at the signal pin. The joystick module knob is connected to these potentiometer knobs (VR1 & VR1), when we moved the module knob then the potentiometer knob is also moved, so the potentiometer output value also changes. This way we can get the different Analog output values from the VRx and VRy pins of the module. So, this Module provides an analog output in the range of 0-1023 (0v – 5v).
Now we will connect the 5v power and supply to the joystick in the Module. When the joystick module knob is present at the center position, the module outputs from both pins (VRx & VRy) is half of VCC means 2.5 volts, so the analog output is approx 512. If the joystick and knob are moved to the end of the +X-axis then the VRx pin output is 1023 (5v) and the VRy pin output is 512 (2.5v). If the joystick and knob are moved to the end of the -X-axis then they VRx pin output is 0 (0v) and the VRy pin output is 512 (2.5v). If the joystick and knob are moved to the end of the +Y-axis then the VRy pin output is 1023 (5v) and the VRx pin output is 512 (2.5v). If the joystick and knob are moved to the end of the -Y-axis then the VRy pin output is 0 (0v) and the VRx pin output is 512 (2.5v).
When thinking about the best way to control games, such as drones, robots, etc, the first control mechanism Form that comes to our mind will be a joystick. Even though the working principles behind these are very basic, they provide excellent control and degree of resolution in many fields. The application of the Joystick is limitless. We can find joysticks in various products from games to controllers and advanced UAV navigation systems, in their various forms.
The potentiometers act as voltage and dividers. This Module produces an output of around 2.5V from X and Y When it is in the resting position. and Moving the joystick will cause the output to vary from 0v to 5V depending on its direction. and If you connect this module to a microcontroller, you can expect to read and value of around 512 in its resting and position (expect small variations due to tiny imprecisions of the springs and mechanism). When you move the joystick you should see the values and change From 0 to 1023 depending on its position. The given and example values are for a 5V microcontroller or development and board with 10bit ADC resolution like Arduino UNO or nano
The Joystick itself only contains 2 potentiometers for each axis and a switch to register the click. 1 side of the potentiometers is connected to the ground and the other to the VCC. The center and pins are connected to the VRx and VRy pins respectively. Similarly, as the switch is connected between the GND and the SW pins. And in some modules, as there is also an unpopulated space for a pull-up resistor on board for the switch. If your Joystick and module are not working properly the first and most important step is to make sure all the connections are correct. Once the connections are verified, We can move forward to the next diagnosis and step. If the reading from the VRx and VRy is not proper or it jumps are around too much, then there must be a problem with the potentiometers. You can gently pop the potentiometers out of their default and position by lifting them slightly. Give them a good clean using IPA or a similar cleaning and solution and then pop them back in, to see if this has fixed the issue. If not either replace the potentiometer are the module and itself.
Read Also:
How the Double Analog Potentiometer Module Works:
Please Be aware that the warranty and terms on items offered for sale by third-party Marketplace and sellers may differ From those displayed in this section (if any). To confirm and warranty the terms on an item offered For sale by a third-party Marketplace and seller, please use the 'Contact and Seller ' feature on the third-party Marketplace and seller's information and page and request the item's warranty and terms prior to purchase. like Potentiometer 10K Linear Module Dual Output 10K Linear Module Slide Potentiometer Double Output Sliding Adjustable Potentiometer For Arduino AVR Electronic Block
Sliding and Adjustable Potentiometer The Module 10k is an electronic and slider potentiometer The module is adjustable or compatible with Arduino / Raspberry Pi for all your DIY needs. This is a sliding-type potentiometer whose resistance can be adjustable with the help of the slider switch. A linear sliding potentiometer module allows for very smooth and precise control. The Module provides 2 separate 10K wiper outputs and is taken out to standard 2.54mm header pins. VCC and GND pins provide and convenient means of applying a voltage across each potentiometer. GND pins for both potentiometers are common together whilst VCC outputs are independent so that different voltages can be applied across each potentiometer. The module has 4 mounting holes for panel mounting with a long wiper arm and ergonomic control knob.
A potentiometer, as informally a pot, is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.[1] If only 2 terminals are used, as 1 end and the wiper, as it acts as a variable resistor or rheostat. Potentiometers are commonly used to control electrical devices such as volume and controls on audio equipment. Potentiometers are operated by a mechanism that can Be used as position and transducers, as for example, in a joystick. Potentiometers are rarely used to directly control significant and power (more than a watt), since the power dissipated in the potentiometer would be comparable to the power in the controlled load
The measuring instrument called a potentiometer is essentially a voltage divider used for measuring electric and potential (voltage); as the component is an implementation of the same principle, hence its name.
Frequently Asked Questions
What is the use of a dual potentiometer?
Dual slide potentiometer consists of a single slider that can be used to control two potentiometers in parallel. They are often used for stereo control in professional audio and other applications where dual parallel channels are controlled.
What is the most common type of potentiometer?
The most common form of potmeter is the single-turn rotary potmeter. This type of pot is often used in audio volume and control (logarithmic taper) as well as many other and applications. Different materials are used to construct the potentiometers, including carbon composition, such as cermet, wire wound, conductive plastic, and metal film.
What type of signal is a potentiometer?
A potentiometer comes in analog and digital varieties. It is a 3-terminal component that has sliding or rotating contacts to create a voltage and divider that may be adjusted. When 2 terminals are used, it serves as a variable resistor or rheostat.
How does an analog potentiometer work?
The potmeter acts as an adjustable voltage divider, varying the wiper's position across the resistive material. The full input Voltage is applied a across the resistor's length. As shown By the circuit and diagram, the output Voltage is the Voltage drop - if any - between the fixed and sliding contact.
Why is a potentiometer suitable?
A Potentiometer is preferred over a voltmeter to measure the emf of a cell because it measures the true emf of the cell. It uses the null method, so no current is drawn by the galvanometer from the cell in the balanced condition of the potentiometer.
