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Products: Wi-microDig v6.4x/6.0x
Wi-microDig v6.4x/6.0x
>> Wi-microSystem || Application info || Technical specs || Driver download

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The Wi-microDig is a thumb-sized easily configurable hardware device that encodes upto 8 analog sensor signals to multimedia industry compatible messages with high resolution and transmits these messages wirelessly to a computer in real-time for analysis and/or control purposes.

Sensitive in real-time It has 8 inputs of each 10 bits resolution (1024 steps of each 4.9 mV) that can sample at upto almost 1000 Hz with milliseconds latency to capture even the finest gestures and movements. Use it conveniently with our sensors to create your interactive installation, ultimate controller, .. For hardware hackers, the Wi-microDig features a hardware hacking area to add your own sensor circuit.

Wireless The wireless transmission complies with the Bluetooth v2.0 standard (using the WIDCOMM or Microsoft Bluetooth protocol stack, but not the Bluesoleil stack), which is a common and reliable protocol that is legal to use anywhere in the world, and at 115.2 kbps much faster than MIDI speed at 31.25 kbps. The wireless range of the Wi-microDig is specified to be at most 400 meter (without obstructions), since it is a Bluetooth class 1 device ! To get the maximum range you will also need a class 1 Bluetooth interface for your computer (note that the built-in Bluetooth interface in Apple computers is class 2 with a much lower range). A Bluetooth interface allows for the use of upto 7 Wi-microDig units simultaneously so it's possible to make a wireless sensor network.

Configurable It's updateable firmware v6.4x enables it to operate in both "standalone" mode (sensor data is processed before it is transmitted) as well as host mode (raw sensor data is transmitted). Standalone mode includes various sensor processing and mapping features such as gesture recognition that can be conveniently configured using our EditorX software. Configure it with EditorX and it will remember the settings after power down. If you need raw sensor data or if you need more sensor mapping or analysis complexity, use it in host mode with our Link software or in combination with a programming or analysis environment to process the sensor data. Our SensePlay software goes another step further by letting you select and setup the Wi-microDig's inputs and the media it's supposed to control without going through an intermediate protocol like MIDI or OSC.

Compatible Even though it encodes analog (0-5V) sensor signals to multimedia industry compliant MIDI messages, you don't need a MIDI interface to receive them. Because the Wi-microDig uses Bluetooth, the MIDI messages appear on the computer at a virtual serial port (called "COM" port on a Windows computer). Our editor software takes the data from there and allows you to route the data in a variety of ways to the software or device of your choice. Once configured using our EditorX software you can use the Wi-microDig with software that communicates directly with devices through the virtual serial port. Our Link software has even more capabilities. Or you can use our Connect application to map the data to/from the serial port from/to a virtual MIDI port or an OSC port.

But wait, there is more ... !

I2C The Wi-microDig's I2C capability makes it compatible with one of the more common bi-directional communications protocols used in robotics for sensors and actuators - connect upto 4 I2C devices (sensors or actuators) directly to it. It's possible to connect more by daisy-chaining them.

Get it now ! It is sold as part of the Wi-microSystem. To get the maximum range you will need a class 1 Bluetooth interface. The BluetoothAdapter has both these features. Want to use the power grid instead of batteries ? Use the Wi-microGlobalAdapter. For a thumb-sized, USB-cabled version (no MIDI interface needed) with actuator outputs, check out the USB-microDig, that, together with the USB-microMIDICable can also send MIDI messages directly to your MIDI gear. For more inputs and resolution, as well as actuator outputs, check out the Digitizer.

Application Information

Product Wi-microDig

Software Support
Drivers The Wi-microDig requires a Bluetooth interface, such as the BluetoothAdapter. See also Apple's Bluetooth FAQ.
Connect MacOS / Windows
EditorX MacOS / Windows
Link MacOS / Windows
SensePlay MacOS / Windows
Plugins Max iCube, oCube and digitizer, Pd iCube, Live Dig4Live
API software Processing, OpenFrameworks, C/C++
More software Find more software on our resources page. I-CubeX digitizers can be used with any software on any operating system as long as it can communicate using the I-CubeX system exclusive messages as specified in the firmware documentation.

Quickstart Manuals Connect (MacOS), Connect (Windows), EditorX, SensePlay, Link, Max iCube, Max oCube
Firmware Information and reference
Other Apple's Bluetooth FAQ

Technical specifications

Product Wi-microDig (Digitizer v6.3x/6.0x)
Version firmware v6.4x, hardware v6.0x

Sensor input
Number of inputs 8 (of which any of at most 4 pairs of inputs 1-2, 2-3, .., 7-8 can be used for an I2C device)
Connector 8x3-position female header (2.54 mm / 0.1" spaced), where each of the 8 analog inputs requires a 3-position column, and each of the 4 digital (I2C) devices a 2x3 column
Range 0 to 5 Volt
Resolution 10 bit or 7 bit (user selectable)
Sampling interval programmable from 0 ms (min) - 16380 ms (max) in steps of 1 ms (actual sampling rate below)

Sampling rate active inputs (signal processing disabled)
1 1-2 1-4 1-8
standalone mode control 990 980 645 330 Hz (max)
pitch 990 980 645 330 Hz (max)
host mode 7 bit Hz (max)
10 bit 985 980 865 525 Hz (max)
Sampling latency up to 35 ms (one active input without signal processing)
Input impedance greater than 10 MOhm
Signal processing functions inversion
scaling (0.04 Volt min range leaving 3-bit resolution)
threshold detection (0.04 Volt min step)
peak/dip detection (over 16 samples max)
averaging (over 16 samples max)
differentiation (between 2 consecutive samples only)
noise gate (5 Volt max range)
Supply voltage 5 Volt
Supply current 30 mA per sensor, 240 mA for all sensors together

Data format
Standalone mode MIDI channel voice protocol:
MIDI pitch-bend (10 bit resolution)
MIDI note-on/off, key-pressure, control-change, program- change or after-touch (7 bit resolution)
See firmware documentation for details
Host mode MIDI system exclusive protocol:
See firmware documentation for details
Transmission Bluetooth® v2.0 class 1 (range: 400 m unobstructed; serial port profile: 115 kbps, no parity, 1 stop bit, 8 data bits, data flow ON)

Power Supply
Voltage 5.5 - 26 V, 9 V (typical), 9V battery reverse polarity protected
Current 300 mA (max), 40 mA (no sensors connected, no inputs enabled, no Bluetooth link), 54 - 128 mA (Bluetooth data transmission)
Connector 9V battery snap connector

Dimensions 61 x 21 x 14 mm (2.4 x 0.83 x 0.55 inch)
Weight 0.02 kg ( oz), excl. power supply

Known bugs and issues

We are not aware of any bugs at this time. Please notify us if you think you may have encountered one.

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