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At SparkFun we use many Arduinos and we’re always looking for the simplest, most stable one. Each board is a bit different and no one board has everything we want, so we decided to make our own version that combines all our favorite features. The SparkFun RedBoard combines the simplicity of the UNO’s Optiboot bootloader (which is used in the Pro series), the stability of the FTDI (which we all missed after the Duemilanove was discontinued) and the R3 shield compatibility of the latest Arduino UNO R3.

The RedBoard can be programmed over a USB Mini-B cable using the Arduino IDE: Just plug in the board, select “Arduino UNO” from the board menu and you’re ready to upload code. RedBoard has all of the hardware peripherals you know and love: 14 Digital I/O pins with 6 PWM pins, 6 Analog Inputs, UART, SPI and external interrupts. We’ve also broken out the SDA, SCL and IOREF pins that showed up on the UNO R3, so the RedBoard will be compatible with future shields. This version adds an SMD ISP header for use with shields.

You can power the RedBoard over USB or through the barrel jack. The on-board power regulator can handle anything from 7 to 15VDC. Check out the related items below for a compatible wall-wart power supply.

Not sure which Arduino or Arduino-compatible board is right for you? Check out our Arduino Buying Guide!

Features:

  • ATmega328 microcontroller with Optiboot (UNO) Bootloader
  • USB Programming Facilitated by the Ubiquitous FTDI FT231X
  • Input voltage - 7-15V
  • 0-5V outputs with 3.3V compatible inputs
  • 14 Digital I/O Pins (6 PWM outputs)
  • 6 Analog Inputs
  • ISP Header
  • 32k Flash Memory
  • 16MHz Clock Speed
  • All SMD Construction
  • R3 Shield Compatible
  • Red PCB!

Documents:

Chair Voyager
Advanced
  • 420
  • 6

Work in progress

Around the world in 8 minutes

Chair Voyager

5 members

Learns or Teaches Arduino without any Line of Code #1
Easy
  • 1,292
  • 20

Protip

Hello everyone, this is the first Arduino tutorial on how to program without writing any line of code, using Ardublock.

Soil Moisture Sensing
Easy
  • 3,248
  • 43

Full instructions

Making a plant self watering system using SparkFun's Soil Moisture Sensor

DIY Breathalyzer
Intermediate
  • 7,623
  • 18

Full instructions

Use an MQ-3 alcohol sensor as a breathalyzer and display the user's BAC.

Fluxx
Super hard
  • 6,455
  • 45

Full instructions

Filling hospitals with heroes

Fluxx

Team Fluxx

Getting Started With ARTIK Cloud - Grove Weather Station
Easy
  • 1,208
  • 17

Work in progress

Quick and easy project that uses Samsung's ARTIK Cloud to collect temperature data from an arduino

Using FreeRTOS Semaphores in Arduino IDE
Intermediate
  • 7,958
  • 18

Protip

FreeRTOS, simple, easy, robust, and optimised for Arduino IDE. Using FreeRTOS Semaphores to share and protect physical resources.

MoodBot Progress Report #2
Intermediate
  • 116
  • 3

Work in progress

A working prototype for a bracelet that senses temperature and computes it into a mood, and then tweets a Parks and Recreation quote.

enabLED
  • 515
  • 6

Work in progress

Crutch enhancement suite! Using an accelerometer, fsr, LEDs and a GPS to visualize and map crutch usage.

enabLED

4 members

Super Friends Button
Intermediate
  • 1,013
  • 17

Full instructions

Send a text with an Arduino to tell your friends that they need to ASSEMBLE!

HiSens Lake Monitoring System
Intermediate
  • 519
  • 7

Full instructions

We are proposing a multi-function system to monitor algal blooms in Lake Erie and other affected bodies of water.

HiSens Lake Monitoring System

Team Calvary Engineering LLC

QuaCKibator
Intermediate
  • 74
  • 2

Full instructions

QuaCkibator takes the guess work and headaches out of egg incubation and makes it mobile. Easy to replicate at home or in the classroom.

HugWear
Advanced
  • 356
  • 12

Full instructions

A wearable pet designed to comfort kids!

HugWear

4 members

Food Security
Easy
  • 1,124
  • 8

Full instructions

A motion detector that sits in my food cabinet. Can be used to detect motion next to rat traps or to notify you of hungry roommates.

Trivia game
Easy
  • 52
  • 2

Full instructions

A fun trivia game for 2 players. The two push buttons are used as buzzers. The piezo makes a sound when one of the buttons is pressed.

Trivia game

Team CHEESE BUGER MAN

lostplayground
  • 722
  • 1

Full instructions

The company that toys with your emotions introduces its newest product: Nostalgia.

Ambient Temperature Controller
Easy
  • 293
  • 4

Full instructions

Control the temperature in your room using a DHT22 sensor, a relay, and a RedBoard to turn on/off a heat source in this case the light bulb.

Wireless Arduino Joystick Shield
Easy
  • 204
  • 3

I needed a remote controller for my Sparkfun RedBot. This is what I came up with.

7 Segment LED Displays 101 - How to Make one Work
Easy
  • 692
  • 6

Protip

Seven Segment LED Displays are everywhere and are available in many configurations. This tutorial will show you how they work.

Tekkikat Teaches Morse Code
  • 653
  • 6

Work in progress

Help Tekkikat drive a DeLorean by learning morse code at the same time!

Whack-a-Button
Easy
  • 127
  • 2

Full instructions

It's like Whack-a-Mole. Just try to stop playing - we dare you!

Sight Cycle - IoT Bike Light
  • 671
  • 4

Work in progress

The intelligent bike light that adapts to its environment using an array of LEDs that independently dim when ambient light is detected

Oscar: The Singing Trash Monitor 
  • 521
  • 4

Full instructions

Finally. The solution to overflowing trashcans.

Sparkfun COM-11408 4 Digit 7-Segment Display Hookup Guide
Easy
  • 1,209
  • 3

Protip

Have you ever wondered about how a 7-Segment LED actually works? This is a basic tutorial for using these inexpensive 4 digit displays.

Temp Sensor + LCD
Easy
  • 149
  • 2

Work in progress

Just for fun and soldering practice, I hooked a temperature sensor and LCD.

Back-Saver
Easy
  • 508
  • 3

Work in progress

Backpack-carrying follower robot powered by Wunderbar and Sparkfun RedBoard

Back-Saver

Team Direct

Night Light
Intermediate
  • 38
  • 1

A galaxy-ish colored night.

Smoke 'Detector'
  • 1,147
  • 2

Full instructions

A simple smoke "detector" using Arduino and a Carbon Monoxide sensor.

Ball Shooter
Easy
  • 41
  • 1

This is a basic ball shooter that uses a flywheel. It shoots fast and goes far.

Clockwork
Intermediate
  • 400
  • 2

Full instructions

Clock-inspired chair that rotates over time the longer someone sits, pushing people to take more frequent breaks throughout the day.

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