The Arduino Uno is a digital device, but it has an analog-to-digital converter (ADC) to allow us to probe the analog signals that permeating our analog world. The ADC is a 10-bit device that can map an analog signal consisting of a voltage ranging from 0 to 5 volts to a decimal value between 0

An Arduino project I am working on uses the TinyGPS library and an EM-406A GPS receiver to keep track of the date and time. This data is used by the rest of my program. When I was coding up this project, I ran in numerous bugs and believe the cause was derived from serial communication

The Arduino Uno (ATmega328) has a single hardware serial connection. If more serial connections are needed, you must implement these in software. Luckily, there is a very easy to use library to implement software serial connections. It is called SoftwareSerial.h and is included with the latest Arduino IDE. The following code demonstrates how to use

Serial communication between computers and/or microcontrollers allows messages to be sent using a single wire. The message takes the form of a series of voltage pulses that encode a sequence of zeros and ones. There are two main protocols for serial communication, TTL and RS232. The major difference between the two is the voltages that

I recently looked for a really good schematic for a breadboard Arduino and couldn’t find one so I made one and share it below. This schematic is for an extremely bare-bones circuit and includes only the needed components to operate a ATmega328 running the Arduino Uno bootloader. I leave it to you to design your