Xadow: Make it Wearable!

Today  we are going to announce the winners of FREE Xadow modules! Hooray!

related activity:


We have received quite many great ideas for this campaign, but sadly we had to narrow down to 2 winners:

Luke Munn, an artist and researcher at CoLab in New Zealand.

” I have been researching wearable technologies for an upcoming work I’d like to produce, called “Net Time”. It is a wearable allowing for a bodily sensation of ‘internet time’ by polling server data, vibrating the skin/bone when each pulse arrives.”

Vignesh Ravi, an 18-year-old engineer from India, wants to make an open source medical grade multi parameter watch Prometheus (cool name!).

“Coming from a developing country I understand how technology has inadvertantly made lives better and how better can be scaled down to yield better results. I believe in future this data would be priceless and can enable predictive diagnosis.”

Congratulations to Luke and Vignesh! We’ll send you the Xadow modules required soon!

Xadow inspires ideas and fuels innovation in different fields. Let’s take a glimpse at Make Fashion 2014: 2 cool projects using Xadow that we wanna share with you!

(For more pictures welcome to refer to https://app.yinxiang.com/shard/s6/sh/c23aa85b-6b89-4848-877b-c9f16e42b68c/9946b44740bd7e699bd0618a4212aa97

The first is the Tech Tie, which uses a Xadow Mainboard and 16 Xadow OLED displays. It is the world’s FIRST wearable tech tie, which makes you stand out in the crowd, especially at night!


The second is the Illuminated Vintage. It looks so fantastic, and surely catch all the attention from the audience in the Make Fashion.

The vintage uses multiple Xadow Main Boards that were running RGB LED’s that were triggered by various Xadow sensors including IMU‘s, sound, light and accelerometers! Imagine a world where your clothes regulate your body temperature, monitor your vital signs, and your necklace begins to glow when the sun goes down.

For more projects, please visit xadow.cc

New Product Post

New products this week:  New Arrivals

Staff Pick

Here comes the weekends, and we’ve picked two products for you. If you already have RPi or Galileo, they’ll be more useful with our choice this time.

USB Console Adapter for Intel Galileo

USB Adapter for Galileo_04

The Intel Galileo Development Board has a serial console port to access the boot-loader and Linux prompt. However, it is not easy to access this serial console because the connector is a stereo phone jack and the signal is the RS-232C level. With this console adapter, you can connect this non-standard serial port to your PC via USB.

We also prepared Galileo Dash Kit for you, helping you save $17 in getting Galileo & Grove Sensor Pack all in one.

Wolfson Audio Card


If you already have a RPi, it’s time to have its own sound card. You can:


  • Play back High Definition audio files up to 24-bit / 192KHz
  • Stereo line-in and line-out ports to connect to your hi-fi system for sound playback and recording on the Raspberry Pi®, both 3.5mm line-out and digital S/PDIF output are accepted


  • Build a VoIP conference phone for your Raspberry Pi® using the two onboard MEMS mics
  • Connect a boom microphone and headset to make hands-free calls using VoIP telephony. both 3.5mm mic jack and a digital S/PDIF input are accepted


  • Record High Definition audio using any of the microphones or line-in ports
  • Voice activation– onboard stereo digital microphones make this a perfect solution to voice activate your project


  • Connect the Raspberry Pi® to the cloud and play your music anywhere around the house
  • Develop and play online games with your friends that allow in-game audio via a gaming headset

You can buy a bundle with RPi to save more money! For more RPi related products, please visit here.


Solid State Relay SHARP S208T02

Solid State Relay SHARP S208T02

SSR stands for Solid State Relay. It is an integration of an infrared emitting diode (IRED), a Phototriac Detector and a main output Triac. Based on optical coupler, SHARP S208T02 features advantages over electromechanical devices like shorter switch time and longer lifetime.

SHARP S208T02 features 8A Max Current Load is  and  240 Voltage Load.

Xbee Breakout Kit

Xbee Breakout Kit_02

Display: Big or Small?

The Beast – Shield Matrix

Shield Matrix

We love matrix! Shield Matrix is a stackable shield for Arduino Mega. It’s like a All-In-One LED Console. It can be controlled remotely by IR receiver. Wireless interfaces like nRF24L01 & Xbee are kept for your idea. You can use it as a Digital clock using the RTC and Buzzer. You can also make it Weather station using environment sensors adding to it.

The Beauty – Tiny I2C Char LCD – 5V

Tiny I2C Char LCD_02

This is a breadboard friendly, 2.54mm pitch, I2C controlled 8×2 characters LCD board for 5V microcontroller. It has the pull-up resistors for I2C bus in it. It’s a Switch Science product with the simple elegance from Japan.

Getting Connected: Far or Near?

Introducing YL-4432G – highly integrated wireless ISM transceiver module

433Mhz RF Module WT 4432G_01

It’s based on Silicon Labs Si4432 with several frequency range: 433/868/915MHz.

It features very low receive sensitivity (-121dBm/1200bps), coupled with industry leading +20dBm output power ensures extended range and improved link performance. Built-in antenna diversity and support for frequency hopping can be used to further extend range and enhance performance. Please review the corresponding area of the application.

433Mhz RF Module WT4432G

Introducing Near Field Communication

NFC, stands for Near Field Communication, which is a set of short-range wireless technologies. It’s behind daily applications such as access control system and mobile payment system.


GalaRing is based on NFC. Or we say it variant from tag, which is more suitable for daily wear with Waterproof . Besides, there is No need to recharge it.

You can embed the identification, unlock programs, check privacy images, and quickly recall commonly used passwords to copy and enters. Everything is so natural and perfect.

The ring comes in M and L size. Please check the size and applicable phone models.

Grove – NFC

grove nfc

Finaly, NFC comes to Grove system.

Grove NFC features a highly integrated transceiver module PN532 which handles contactless communication at 13.56MHz. You can read and write a 13.56MHz tag with this module or implement point to point data exchange with two NFCs. Grove NFC is designed to use I2C or UART communication protocols, and UART is the default mode. In addition, we assign an independent PCB antenna which can easily stretch out of any enclosure you use, leaving more room for you to design the exterior of your project.

Grove NFC supports P2P communication. If you seek for better size NFC, we also suggest Xadow NFC, it supports reading/writing tags, phone-to-Xadow NFC communication, tag emulation at this time, it’s a 3-in-1 all-star.

Max operating distance for detecting NFC tags is 28mm, which depends on current antenna size.

NFC Antenna

The 120 mm NFC Antenna is also in stock. It has an IPX/U.FL connector and can be used by NFC Shield V2, Xadow NFC and Grove – NFC.

Tool & Kits

BGA Reballing Practice Kit

BGA Reballing Kit

A kit with (almost) everything you need to reball your first BGA chip! It includes the exact brands and tools used by Hacker Camp Shenzhen to teach BGA reballing at a mobile phone repair school. Accompanies the Hacker Camp Shenzhen 2014 BGA workshop video from Dangerous Prototypes.

You may need our Tools on Soldering to begin your journey from average to an experienced engineer.

Premium Make Your Own Cable Kit

maker cable kit

How often have you been caught without the right cables? You can salvage an old ugly one from somewhere, or make a last minute part order that delays your project. Never again! The Premium Make Your Own Cable Kit from Dangerous Prototypes contains enough connectors to make (almost) a  lifetime supply of cables for standard 0.1″ (2.54mm) headers.

Logic Pirate

Logic Pirate_02

The Logic Pirate is an inexpensive, yet capable open source logic analyzer. It can sample 8 channels at 20 million samples per second, and may be overclocked for even faster acquisitions. It’s designed to support the open source SUMP logic analyzer protocol with software available for most operating systems.

Connect the Magic – Challenge with Wiznet

Connect the Magic

Connect the Magic

This challenge is straightforward. Implement WIZnet’s WIZ550io Ethernet module, or W5500 chip, in an innovative design, document your project, and submit your entry.


The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that enables easier internet connection for embedded systems using SPI (Serial Peripheral Interface). W5500 suits users in need of stable internet connectivity best, using a single chip to implement TCP/IP Stack, 10/100 Ethernet MAC and PHY.

We also use W5500 in our product design. A new version of Seeeduino Ethernet you will see.

For more Wiznet enabled product, you can find them in our Bazaar.

If you wanna join the challenge, it  launches on March 3, 2014 and commences on August 3, 2014.

Click the link to begin your journey in Internet of Things revolution.

Wearable design: Wristband

Xadow is designed for wearable electronics, and a typical application is wristband. My first understanding is that as wearable electronics, Xadow has special requirements for its enclosure: 1st, flexible & bendable as a band; 2nd, prevent damage of pulling force; 3rd, convenient to change PCB and for wearing. To solve the problem of bending, we try fastening PCB onto a soft belt. To avoid PCB & FFC from the damage of pulling force, the material of soft belt need to have a very high elasticity.

The following 4 sketches show the thoughts:


nylon tape + Magic Tape


silicon tape + PVC + buckle


chainable plastic cases


Nylon tape + clips

The soft band in the sketch above is nylon tape. There are magic tapes on the nylon tape and at the back of PCB. Use magic tape and the lower nylon tape to fasten PCB, and use clips to fasten the upper and lower tapes. On the one hand, the simple structure makes it easy to change and assemble PCB; on the other hand, the materials are very common in daily life, and the process is not complicated either. However, the downside is that the upper tape and lower tape couldn’t be synched in bending. Besides, different sizes of PCB make the appearance unsmooth, lack of esthetics. In order to synch the upper and lower bands in bending, we use screws to fasten the bands.


Sketch: Nylon Tape + Screws


Effect drawing- Nylon tape + screws

The pictures above use nylon tapes and screws to fasten the upper & lower tape as well as PCB. However, it still couldn’t synch the upper and lower band in bending. Besides, the large number of screws makes it quite messy. That’s why we stop going in this direction.

to be continued…

written by nosk, translated by violet

Electronics can be fashionable

Technology is no longer just the “design” feature, fashion designers started to collaborate with technologists because they want to make garments and accessories people will want to wear and include in their daily life.

Let wearable devices be trendsetters and people will love wearing them!

Imagine a world where your clothes regulate your body temperature, monitor your vital signs, and your necklace begins to glow when the sun goes down.


MAKE FASHION is an annual wearable technology fashion show. It introduced Calgary designers to the exciting world of wearables through a series of informative, hands-on, designer-lead workshops.

As the sponsor of MAKE FASHION 2014, we provided Seeeduino & Xadow series, which are extremely suit for designers and wearable applications.


Dr. Patricia Flanagan made Blinklifier with Seeeduino.

The Blinklifier explore the power of feedback loops in environments where human and wearable computers are intertwined and explores their application as tools for self-modification and sustainable change.

maker faire fashion

Picture: Maker Faire Shenzhen 2014!

Make it wearable with Xadow


Tech Tie used the Xadow mainboard and 16 of the Xadow OLED screens – it was encased in milled aluminum and showcased a variety of scrolling designs.

tech tie mf

We are glad to see them again at Maker Faire Shenzhen 2014!

credit: Shannon Hoover

make fashion xadow

These pieces here also used the Xadow components

We had fans that lit up when moved with the accelerometers, and lights programmed by the Xadow mainboard, and the umbrella would create patterns with the LED’s when they were spun.

Xadow is a though small but perfectly formed Arduino(TM) compatible board series containing several modules. It’s a kit extremely suitable for space-sensitive projects such as wearable devices & arts designs, which have higher request on size, weight and flexible cascade connection. You can find more modules here.

more gallery:

  • https://plus.google.com/photos/+JeffMcDonald/albums/5986247294569111393
  • http://www.flickr.com/photos/stylewerxproofs/sets/72157641743954245/