PC817 Optocoupler Module Features
An Optocoupler, is an electronic component that interconnects two separate electrical circuits by means of a light sensitive optical interface.There is a is a light emitting diode with a phototransistor inside the optocouplers, both of them are isolated from the external environment of the optocoupler; This means that the internal phototransistor can only receive light emitted by the internal light emitting diode. The phototransistor base is stimulated by light receive...
4 Channel Infrared Module Features
This module has 4 IR transmitter and receiver pairs that can be used to detect black and white color as well as obstacles. Each channel has digital voltage output. You can adjust the sensor’s sensitivity using the on board potentiometers.
Pinout
You can see pinout of IR module in the image below.
Required Materials
Hardware Components
Arduino UNO R3
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1
4 Channel IR Obstacle Avoidance Proximity Module
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1
Male to Male jumper wir...
TLP281 4-Channel Opto-isolator IC Module Features
Sometimes we need to separate the low-voltage section (microcontroller) from the high-voltage one in circuit in order to prevent noise and damage to the microcontroller. This module isolates the low-voltage section from the high-voltage section using TLP281-4 IC. This IC contains 4 LEDs (Light Emitting Diode). 4 high-voltage channels can be controlled by microcontroller using this IC.This module can also be used to turn on and off the servo motor and oth...
PS2 Joystick Module Features
This module consist of two joysticks and two independent buttons. The joystick is very useful in robotics. Each joystick has two potentiometers on two X and Y axes and one push button. This module has two analog outputs and one digital output. In robotics, it can be used to control moving parts and motors.
How it works
This module contain two potentiometers in both X and Y axis. As shown below, the joystick is normally in the ...
L9110 Dual Channel Driver Module Features
Motor driver modules are very common nowadays and widely used to control the speed and direction of motors. The L9110S dual channel module is one of them. This module can control two DC motors and one stepper motor. It is based on L9110 IC. The key features are:The allowable continuous current for each channel:  800mA.The operating voltage: 2.5 - 12V.Two control pins for each DC motor.Suitable for toy cars motors.Can control one stepper motor.
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L9110S Dual-Channel Driver Module Features
Motor driver modules are very common nowadays and widely used to control the speed and direction of motors. The L9110S dual-channel module is one of them. This module can control two DC motors and one stepper motor. It is based on L9110 IC. The key features are:
The allowable continuous current for each channel: 800 mA
The maximum allowable current: 1.5 A
Power supply: 2.5V to 12V
Note
The two connected pins to each DC motor can be PWM or digital. If define...
74HC4051 8-Channel Analog Multiplexer Features
The 74HC4051 8-Channel analog multiplexer module can be used when there are many analog inputs in a circuit. In this case, one of these inputs needs to be selected and processed each time. This multiplexer can be used to select from 8 analog inputs. There are three S0-2 pins, which by giving appropriate values, one of the analog inputs is set as the output on the Z pin.
74HC4051 8-Channel Multiplexer Pinout
This module ...
