Skip to main content

Recently Updated Pages

How to send data to p5.js from Arduino

Physical Computing Tutorials

What is the Serial Communication? Serial communication is the process of sending data one bit at ...

Updated 4 months ago by Joanne Leung

How to build a Simple Robot Arm with Servo Motor and Joystick

Physical Computing Tutorials

How to construct a robotic arm? A simple robotic arm is basically like a human arm which consists...

Updated 4 months ago by Joanne Leung

How to make Animation on NeoMatrix

Physical Computing Tutorials

What is NeoMatrix? NeoMatrix is a grid lined up with mutiple Neopixel. Neopixel is addressable LE...

Updated 4 months ago by Joanne Leung

How to use DFPlayer mini to play MP3

Physical Computing Tutorials

What is a DFPlayer? 11/2024 Update A new library added below. For people trying to avoid delay()...

Updated 4 months ago by Joanne Leung

Using a TCS34725 RGB Color Sensor

Physical Computing Tutorials

What is the TCS34725 RGB Color Sensor? The TCS3472 sensor provides a digital return of red, green...

Updated 4 months ago by Joanne Leung

How to control Arduino without using delay()

Physical Computing Tutorials

What is a delay()? delay() is a function that pauses the program for the amount of time (in milli...

Updated 4 months ago by Joanne Leung

Making Breathing Light with LEDs

Physical Computing Tutorials

What is a LED? LED (Light Emitting Diode) is a semiconductor light source that emits light when c...

Updated 4 months ago by Joanne Leung

Using a Vibration Motor

Physical Computing Tutorials

What is a vibration motor? Vibration motor is a DC motor in a compact size that is used to inform...

Updated 4 months ago by Joanne Leung

How to use a Neopixel strip

Physical Computing Tutorials

What is Neopixel? Neopixel is a name given by Adafruit. Neopixel is addressable LEDs, meaning tha...

Updated 4 months ago by Joanne Leung

How to use a PIR sensor

Physical Computing Tutorials

What is a PIR sensor? PIR stands for Passive Infra Red and therefore a PIR sensor can etect movem...

Updated 4 months ago by Joanne Leung

(MAC) Automatic printing with Automator

Physical Computing Tutorials

What is Automator? Apple’s Automator is a built-in Mac feature that allows users to easily “progr...

Updated 4 months ago by Joanne Leung

Using L293D IC for motors

Physical Computing Tutorials

What is L293D? The L293D is a 16-pin Motor Driver IC which can control a set of two DC motors sim...

Updated 4 months ago by Joanne Leung

Using a Soil Moisture Sensor

Physical Computing Tutorials

What is a Soil Moisture Sensor? The Soil Moisture Sensor measures soil moisture grace to the chan...

Updated 4 months ago by Joanne Leung

Using Arduino Leonardo to send USB MIDI data

Physical Computing Tutorials

One of the secrets of Arduino Leonardo is the in-built USB MIDI support. This is really useful fo...

Updated 4 months ago by Joanne Leung

Using an MFRC522 RFID reader

Physical Computing Tutorials

What is an MFRC522 RFID reader RFID means radio-frequency identification. RFID uses electromagnet...

Updated 4 months ago by Joanne Leung

Using the serial monitor and serial logger

Physical Computing Tutorials

What is serial communication? Serial communication is a type of communication between two device...

Updated 4 months ago by Tom Lynch

How to use a rotary encoder

Physical Computing Tutorials

What is a rotary encoder? A rotary encoder is an electromechanical device that converts the angul...

Updated 4 months ago by Joanne Leung

How to connect a Light Dependent Resistor (LDR)

Physical Computing Tutorials

What is an LDR? An LDR or Light Dependent Resistor is a component which restricts how much power ...

Updated 4 months ago by Joanne Leung

Connecting a Potentiometer

Physical Computing Tutorials

What is a potentiometer? A potentiometer (often abbreviated to pot) is an electronic component wi...

Updated 4 months ago by Joanne Leung

Using a Sparkfun Sound Detector

Physical Computing Tutorials

What is the Sound Detector? The Sound Detector is a board made by Sparkfun electronics that provi...

Updated 4 months ago by Joanne Leung