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5V relay module for Arduino and other microcontroller projects
This module has 8 x 5V changover relays with the option of using them through optocouplers. There is an LED for each relay to indicate when it has been activated.
The relay allows the low current microprocessor outputs to switch higher currents and voltages. With the optocouplers it fully isolates the live side of the relays from your microprocessor, this will require a seperate 5V supply to power the relays.
Trigger voltage : 5VDC
Supply Voltage : 5VDC (only needed if using optoisolators)
5V relay module for Arduino and other microcontroller projects
This module has 2 x 5V changover relays with the option of using them through optocouplers. There is an LED for each relay to indicate when it has been activated.
The relay allows the low current microprocessor outputs to switch higher currents and voltages. With the optocouplers it fully isolates the live side of the relays from your microprocessor, this will require a seperate 5V supply to power the relays.
Trigger voltage : 5VDC
Supply Voltage : 5VDC (only needed if using optoisolators)
Tilt switch module for Arduino and other microcontroler projects
This module has a tilt switch that is normaly open and will close when the module tilts, it has a resistor connected in series with the switch so it can be used directly with a digital input on an Arduino when powered by 5VDC.
Digital temperature sensor module for Arduino and other microcontroller projects
This module uses an NTC thermister to sense the temperature.It also has a comparator to give a digital output as well as an analogue output and a potentiometer to adjust the level for the digital output.
Percussion knock sensor module for Arduino and other microcontroler projects
This module is a switch that will detect being hit, it is not as sensitive as the vibration switch (KY-002) so can be used in projects that may be moving and an impact needs to be detected. This sensor acts like a switch that will "make" when the sensor is knocked.
Object detection/avoidance module for Arduino and other microcontroler projects
This module uses an IR diode and IR receiver that will detect if there is an object in front of the module. It also has 2 potentiometers to adjust the sensitivity of the module.
Line tracking sensor module for Arduino and other microcontroler projects
This module uses an IR transmitter and receiver that will detect how reflective the surface is in front of the module. It has a potentiometer to adjust the sensitivity of the module so it can detect if the surface is black or white.
Metal touch sensor module for Arduino and other microcontroler projects
This module uses a darlington NPN transistor and a comparator to detect when the base of the transistor (or what you connect it to) gets touched.It will give a digital output as well as an analogue output and it has potentiometer to adjust the sensitivity for the digital output.
Microphone sound sensor module for Arduino and other microcontroler projects
This module uses a minature microphone to detect sound levels. It also has a comparator to give a digital output as well as an analogue output and potentiometer to adjust the level for the digital output.
Finger heartbeat measuring sensor module for Arduino and other microcontroller projects
This module uses abright IR LED and a phototransistor. When a finger is placed between the LED and transistor you will get an analogue output of light intensity that passes through the finger, this will vary every time the heart beats and indicate heart rate.
Rotary encoder module for Arduino and other microcontroler projects
This module uses a 30 position rotary encoder with push switch.
The rotary encoder works by having 2 switches (A&B) for each position that are slightly offset, indicating the direction of rotation by detecting if "A" switches before or after "B".
