The RFduino has Bluetooth 4.0 Low Energy built-in, which enables it to wirelessly talk to any smartphone that has Bluetooth 4.0. Currently we have several open source apps built for the iPhone which were used in our demos. Open source Android apps are next.

The RFduino has a Nordic 32 bit ARM Cortex-M0 processor, so it has more power then the UNO, however it still runs the same, simple Arduino code the UNO runs, so there is no need to learn any new programming language or environment. Your standard Arduino sketches run on the RFduino.
The RFduino GPIO lines all support, Digital IO, Analog ADC, SPI, I2C, UART and PWM. There are 7 GPIO and fully software selectable and can be remapped as you wish.

The RFduino is similar to the Arduino UNO or DUE, except the RFduino is a fraction of the cost and size, in addition has wireless smartphone connectivity built-in!Up to now, adding wireless to an Arduino required an additional wireless shield which adds cost and size. The RFduino has wireless built-in, so there is no need for an additional wireless shield.The ultra small, finger-tip size board shown in video cover picture above has been put into an easy to use DIP form factor with 0.100" (2.54mm) pins, so it easily plugs directly into your solderless breadboards.






Some things the RFduino can do


The RFduino gives wireless senses to your iPhone and enables it to touch the physical world!

Some more things the RFduino can do




The RFduino is a stand-alone board, just like the Arduino UNO. In addition, the RFduino has a powerful ARM Cortex processor and Bluetooth Low-Energy 4.0 built-in, which take your projects to the next level!
Powerful enough to run your projects.
Small enough to fit inside your projects.
Low cost enough to be used for all your projects.
It's perfect for the hobbyist creating do-it-yourself projects, to professional engineers producing proof-of-concept prototypes.
It can be used with or without Bluetooth 4.0.

Beginners can use the pre-written Arduino sketches and advanced users can write their own from scratch.
We have several open-source RFduino and iPhone apps which are free to use, extend and share.

Stackable Shield Accessory Boards

The RFduino has been constructed with high quality, leading edge, state-of-the-art professional grade components.
We have also developed a few miniature accessory boards to help you with your projects. They plug directly into 0.100" (2.54mm) standard spacing, solderless breadboards or run fully stand-alone. They are stackable and plug directly into each other to provide many combinations.





Get It All - Pledge Level Information:

Get It All Kit $139 Pledge Level Includes:
2 RFduino
1 USB Programming shield board
1 RGB LED shield board
1 Servo Output shield
1 PCB USB Programming shield board
1 Prototyping shield board
1 Dual AAA Battery shield board
1 Single AAA Battery shield board
1 CR2032 Battery shield board
Get It All (Multi Project) Kit $219 Pledge Level Includes:
5 RFduino
2 USB Programming shield board
1 RGB LED shield board
1 Servo Output shield
1 PCB USB Programming shield board
1 Prototyping shield board
1 Dual AAA Battery shield board
1 Single AAA Battery shield board
1 CR2032 Battery shield board

Get It All (Master Developer) Kit $399 Pledge Level Includes:
10 RFduino
2 USB Programming shield board
2 RGB LED shield board
2 Servo Output shield
2 PCB USB Programming shield board
2 Prototyping shield board
2 Dual AAA Battery shield board
2 Single AAA Battery shield board
2 CR2032 Battery shield board
----------------------------
- White solderless breadboards, iPhones, batteries, computers, wires, cables and all other items of any type which were used in pictures, videos or demos are not included in any rewards.
- microSD Shield and the Dual Relay shield are backer suggested shields designed during the course of this project and are not included in any pledge levels. They are available as A La Carte. - Full list of A La Carte options to add to your pledge levels:


(Shipping amounts are for USA and International shipping.)

RFduino ....... $20.00 + $1 for shipping
USB Programming shield board ....... $20.00 + $1 for shipping
RGB LED shield board ....... $10.00 + $1 for shipping
Servo Output shield board ....... $12.00 + $1 for shipping
PCB USB Programming shield board ....... $19.00 + $1 for shipping
Prototyping shield board ....... $6.00 + $1 for shipping
Dual AAA Battery shield board ....... $16.00 + $1 for shipping
Single AAA Battery shield board ....... $16.00 + $1 for shipping
CR2032 Battery shield board ....... $12.00 + $1 for shipping
microSD shield board ....... $11 + $1 for shipping (see updates)
Dual Relay shield board ....... $21 + $1 for shipping (see updates)


What will the funds be used for?The funds will be used for the manufacturing run of the RFduino and shield accessory boards. Here is a breakdown of the manufacturing process:

  • PCB Fabrication
  • Passive Components
  • Active Components
  • Assembly Labor
  • Test Labor
  • QC and QA
  • Packaging
  • Shipping



Design, Functional Prototypes and Testing are done


  • Schematic design is done.
  • Engineering design review is done.
  • Layout is done.
  • Prototyping is done.
  • Antenna pattern testing is done.
  • Electronic engineering is done.
  • Electronic design reviews are done.
  • Field Range testing is done.
  • Designed for manufacturability (DFM) review is done.
  • iPhone testing done.



Our Contract Manufacturer is ready

We have a very reliable, high-quality, ISO Certified, contract manufacturer in California already in place and ready to start production on the RFduino and shield accessory boards.Manufacturing Plan


  • Place order for solder paste stencil.
  • Place order for parts.
  • Place order for PCBs.
  • Pick and place automated assembly.
  • Hand soldering the connectors.
  • Build test jigs for the production line.
  • Full production test.
  • Quality Control.
  • Packaging.
  • Quality Assurance.
  • Shipping.



Production Timetable and Shipping


  • PCB Fabrication (3 weeks)
  • Order Materials (No time offset, done while waiting on PCBs.)
  • Pick and Place Assembly (3 weeks)
  • Hand Assembly (2 weeks)
  • Test (2 weeks)
  • Quality Control (1 week)
  • Quality Assurance (1 week)
  • Packaging (1 week)
  • Shipping (1 week)



About the Inventor

I am an electrical engineer and Iíve spent decades designing and manufacturing high performance wireless products. These products were used by aerospace, industrial, cellular, and consumer industries. My designs and products have been used by companies and organizations such as NASA, JPL, USGS, Motorola, Sikorsky Aircraft and many others.I've created Open Source RF to focus on making high quality, creative products for the Maker, DIY and Open Source communities.