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Wunder Bar - IoT Kit (Seeed Studio)

SKU: SS110990446

$480.50 AUD, inc GST
$436.82 AUD, exc GST

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Wunder Bar - IoT Kit (Seeed Studio)
480.5 AUD

SKU: SS110990446

$480.50 AUD, inc GST
$436.82 AUD, exc GST


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

The WunderBar Internet of Things WiFi & Bluetooth Sensor Starter Kit is a quick start development tool for Software Application Developers unfamiliar with complex wireless hardware designing, and a complete open-source wireless hardware reference design that enables Hardware Design Engineers with a out-of-the-box development tool that helps users get started quickly building, inventing, developing, and experimenting with Internet of Things senor based designs using WiFi and BLE senor applications.

The WunderBar IoT Starter Kit from relayr mimics the appearance of a chocolate bar with a WiFi enabled master module, plus six detachable smart sensor mini-modules. Each module has Bluetooth Low Energy (BLE), a sensor or actuator, and an on-board battery. The mini-modules provide functionality including light, color, distance, noise, temperature and humidity sensing, plus an accelerometer, a gyroscope and infra-red (IR) remote control capability. The Starter Kit has available for download various software development kits (SDKs) for iOS, Android and Node.js. including test Apps which can be downloaded from relayr.io


  • • ŸWork right way

  • ŸEach module is fitted with firmware that makes it fully functional from the start. Yet it's flexible enough to allow you to configure it for your App.

  • • ŸFast and secure

  • Based on core technologies developed by Twitter, LinkedIn and Yahoo, the Wunderbar kit and Cloud constitute a fast, secure and scalable system.

  • • ŸEnergy-efficient

  • Each sensor module runs on a single coin cell battery that will last for at least a month. It's because of the way the firmware utilizes the BLE transmitter.


Master module

  • • ŸMain MCU: Freescale MK24FN1M0VDC12, Kinetis-K 32-bit ARM® Cortex™-M4 core with DSP instructions

  • • ŸClock Speed: 120MHz

  • • ŸFlash: 1024 KB

  • • ŸSRAM: 250 KB

  • • ŸGainspan GS1500M WiFi module: IEEE 802.11b/g/n, WPA/WPA2, full TCP/IP stack including SSL/TLS Nordic nRF51822 BLE (ARM® Cortex™-M0, Bluetooth 4.0 stack)

  • • ŸIO: 12 exposed GPIO pads, including 4 ADC, SPI, I2C and SDIO

  • • Ÿ3.3V regulator including Li-Ion/Li-Po charger

  • • ŸFull-speed USB w/OTG controller

  • • Ÿ32 kHz Xtal oscillator for RTC

Sensor modules

  • • ŸSoC: Nordic nRF51822 BLE (ARM® Cortex™-M0, Bluetooth 4.0 stack)

  • • ŸClock Speed: 16MHz

  • • ŸRAM: 16 KB

  • • ŸFlash: 256 KB

  • • ŸIO: 8 exposed GPIO pads, including SPI, I2C, TWI, UART, ADC

  • • Ÿ32 kHz Xtal oscillator

  • • ŸOne of the following sensors:

Included Sensors

  • • ŸTemp / Humidity – Features HTU21D, a low power digital sensor of relative humidity and temperature.

  • • ŸAccel & Gyro - Features MPU-6500 six-axis (gyro + accelerometer) MEMS MotionTracking device.

  • • ŸLight / Proximity - Features TCS37717 high sensitivity RGB color sensing and proximity detector.

  • • ŸIR Transmitter - Features SFH4441 high power infrared emitter, 950 nm, special package, half angle ±17 °.

  • • ŸMicrophone / Noise Sensor - Features SPQ0410HR5H-B, a miniature, high-performance, low power silicon microphone.

  • • ŸAccessory Adapter / Bridge - Features 4-pin connector compatible for Grove add-on boards and sensors.

Dimensions: 18.6 x 29 x 6.8 mm


1 bar of chocolate casing + 1 circuit board + 5 cell batteries + 1 lithium battery + 1 USB cable + tacky tape

Getting Started with Wunder Bar

Install the relayr Manager App on your smartphone:


Google Play

Download the SDK for your platform

If you have any questions, please visit relayr forum.

Documentation and Resources:

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!