Connect up to 10 buttons using a single interrupt.
Project tutorial by Svizel_pritula
Sample code on how to interface with the SN74HC165N IC so as to save data pins when dealing with a large amount of simple digital inputs.
Project tutorial by Matt Moore
A battery charge checker on the base of Arduino
Project tutorial by Anton Nogin
Sketch of transistor tester project from Karl-Heinz Kübbeler, so it's much simpler to study, modify, verify and upload to an Arduino.
Project tutorial by plouc68000
More complex microcontroller projects often require a menu-driven interface. This library for XOD can help autogenerate them from a diagram.
Project tutorial by Matthew Hamer
Thermistor as thermometer.
Project tutorial by Marcazzan_M
The project shows you how to configure flexibly user variables via Web without hard-coding. Setting Schedule via web is an example.
Project tutorial by phpoc_man
This Arduino-powered Web Oscilloscope supports trigger, and changing voltage/div, offset and time / div. It supports 6 channels.
The AD7793.h library provided by Analog Devices has been adapted for using on Arduino along with the SPI library.
Project tutorial by iamsolar
A programmable, portable, rechargeable power supply based on Arduino featuring an OLED display for viewing V.I.P. of projects/prototypes.
Project tutorial by Shahariar
How to make a benchtop pH meter with an Arduino Uno and the Gravity analog pH sensor from Atlas Scientific.
Project tutorial by Atlas Scientific
Android device controls Arduino's inputs and outputs using USB and serial protocol.
Project tutorial by Projecter
When it sees you, it won't stop following!
Project tutorial by Little_french_kev
Monitoring and follow-up solution for the acquisition of multipurpose measurements. Based on Arduino and monitored using a Windows GUI.
Project tutorial by BBRI (Belgian Building Research Institute)
Add an external S-meter on any Icom amateur radio transceiver that has a CI-V control port.
Project tutorial by ddufault
Tester may block hardwired sensors of common burglary alarms and access systems so protected zone is open, even if the system's in arm mode.
Project tutorial by Cezarjar
Create a digital watch for Arduino combined with a 16x2 LCD Keypad Shield and using YAKINDU Statechart Tools.
Project tutorial by Robin Herrmann
You need to send a command to Arduino.
Project tutorial by mikefarr
Equipped with a keyboard, Ethernet Shield and LCD monitor, is able to execute built-in command and even to send command to a telnet server!
Project tutorial by Alessio Villa
Morse Code decoder that can adjusts to LED bright level and demonstrates how to implement timer interrupt.
Project tutorial by shjin
Recently I’m getting a lot of queries regarding XBee, In this tutorial, I'm going to show you how to interface XBee with Arduino.
Project tutorial by Fouad_Roboticist
Arduino is used to measure frequency and duty cycle of pulses and display them on LCD.
Project tutorial by ambhatt
This library creates an 8-bit IO port for Arduino by combining any 8 Arduino pins. With this library, one can send/get direct 8-bit data.
Get not only 5 volts but also 9, 12 volts (18 Watts max) out of any QC-compatible charger/power bank for supplying power hungry projects.
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