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Solderless Male to Female Jumper Leads - set of 40
This set of coloured male to female jumper leads can be used intact, or peeled appart into small sets or single leads. Great for prototyping with Arduino, Raspbery Pi and other projects
Keep track easily with 10 different colours for quick fault finding.
4 of each: Red, Orange, Yellow, Green, Blue, Grey, Purple, Brown, Black and White
Each length: 200mm
Passive buzzer module for Arduino and other microcontroller projects
This module is a simple passive piezoelectric buzzer that will give out a variable tone depending on the frequency put in to it.
Frequency : 1.5 to 2.5kHz
Voltage : 1.5 to 15VDC
Microphone sound sensor module for Arduino and other microcontroller 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.
Voltage : 5VDC
Ultrasonic ranging module for Arduino and other microcontroller projects
This is a module with a 40kHz ultrasonic transmitter / receiver pair mounted on the front of a small PCB, with the required control circuitry on the back.
It sends a short 40kHz square wave out, and calculates the distance by recording the time it takes the wave to return to the sensor.
Voltage : 5VDC
Working Range : 20mm to 4500mm
Accuracy : 2mm
HC SR04 Distance Measurement Tool
This article will demonstrate how to build a simple distance measuring device using the HC SR05 ultrasonic sensor board. This project can be used standalone as a way of measuring short distances or, it can be incorporated into other projects that require distance measuring. This sensor works best when the two transceivers are parallel to a solid surface, at a distance between 2cm to 450cm.
Here’s what you will need:
Arduino Uno x 1 or Arduino Nano x 1
First, you will need to connect the HCSR04 sensor to the Arduino. Simply use the male to female jumper leads to connect the two together as described below and in fig.1:
Solder the KY1602 module onto the 1602 LCD screen. Pin 1 on the KY1602 module is the one closest to the 4 data and power pins. Once soldered, you can now connect the LCD display to the Arduino as shown in fig. 1.
Connect the Arduino to a computer and install the libraries mentioned above. If you need help installing the libraries, CLICK HERE for a quick tutorial.
You can now start writing the code to get this all working:
First, clear the IDE window. Then, include the aforementioned libraries:
Initialize the KY1602 I2C LCD driver (address 0x27 in this example) and specify the LCD display (in this case 16 characters, 2 rows):
Begin the void setup function. Initialize the LCD screen and turn on the backlight:
Add 100ms delay:
The completed code should look like this:
Press the “Upload” button at the top (button with tick, located below “File”). The IDE will now compile the code and upload it to your Arduino (this will take a few moments).
All done! The LCD will now start to display the distance calculated by the sensor.
SG90 Micro Servo for Arduino and other microcontroller projects
This micro servo is the most popular 9g servo in the world.
It is used for Radio Control models, robotics plus many other uses.
Compatible with Arduino and other microcontroller projects.
Supplied with 3 different servo horns and fixing screws.
Voltage : 5VDC
Speed : 60 Degrees in 0.12 second
Torque : 1.8kg/cm
Wire Length : 150mm
Size : 23x12.2x29mm
Weight : 9g
Capacitive touch sensor module for Arduino and other microcontroller projects
One side has a 9mm x 9mm capacitive touch area, and a TTP223 touch sensor IC on the reverse.
An LED indicates when the switch is touched. It can be set to either a high or low output, and momentary or latching output by joining or not joining the A and B connections:
A open = High output when touched
A Closed = Low output when touched
B open = Momentary switch action
B Closed = Latching switch action
Voltage : 3 to 5VDC
PCB Size 14x10mm
PIR sensor module for Arduino and other microcontroller projects
The HCSR501 is a PIR (Passive Infra-Red) sensor that can detect the presence of people by measuring the infrared radiation radiated by the body. It can be used in a vast and diverse number of projects, including but not limited to: automated lighting systems, burglar alarms, automated door systems, etc.
Principle of operation
All objects with a temperature above absolute zero (0 kelvin) emit electromagnetic radiation. The higher the temperature of the object, the smaller the wavelength of the radiation emitted. The normal human body temperature is 37°C (310.2 kelvin) and it therefore emitts infrared radiation (mostly at a wavelength of 12µm). The PIR sensor can sense when a person has walked into its field of view by measuring the difference in the infrared radiation received from the ambient environment and the human body.
Voltage : 5-20VDC
Power Consumption: 64mA
Logic output: 3.3V
Range: 7 metres, (<120°)
Lock Time: 200 miliseconds
Operating temperature range: between -15°C and 70°C