Wristwatch Oscilloscope Kickstarter Project

Calculator watches stopped being a sign of nerd chic a long time ago. If your wrist has been crying out for a device that declares to the world, "I am a hopeless technophile... and proud of it!," then this wearable o-scope-in-a-watch might be just the fashion statement revolution you have been waiting for. For a $99 pledge, you can receive one of the first prototype as part of Gabriel Anzziani's Kickstarter project (hurry - only one left as of this writing). Per the website, "The Oscilloscope Watch has all the features of a modern watch (time, calendar, alarm, etc...) combined with all the features of the popular Xprotolab (Oscilloscope, Waveform Generator, Logic Analyzer, Protocol Sniffer, Frequency Counter). The Xprotolab has been featured in several other online magazines, such as Hack a Day. and Elektor." The $60k goal has been met and exceeded.

Its open source code allows users to customize the device for personal needs. Attention to power consumption means about 12 hours of continuous use per charge, or 30 days acting as an actual time-keeping device and occasional bragging demonstrations. "The oscilloscope can't be truly wearable/portable if not accompanied by the probes. There are a few solutions for this problem: 1) Carry small probes in a keychain. 2) Make a wristband made out of the probe cables. 3) Use the probes as the watch straps... A special BNC adapter will also be designed that will plug in the 9 pin header, this will allow [use of] standard probes." A true devotee might consider having a storage sac surgically implanted in his/her forearm.

O-Scope Wristwatch on Kickstarter

Here are the Oscilloscope Watch's specifications:

The Oscilloscope Watch design is based on the Xprotolab, so the specifications will be similar. The Oscilloscope Watch User's manual will also be similar to the Xprotolab manual, with the additional documentation related to the watch functions.

General Specifications

ATXMEGA256A3U 256KB Flash, 16KB SRAM, 4KB EEPROM
Sharp Memory LCD display 1.28", 128x128 pixels
Approximate watch size: 2" x 1.6" x 0.6"
Li-Ion Battery 400 mAh, rechargeable via the micro USB connector
Internal PDI interface
8 tactile switches
USB connectivity: PC application available, Android App available.

Logic Analyzer Specifications

8 Digital Inputs, 3.3 V / 5 V tolerant
Maximum sampling rate: 16 MSPS
Frequency counter: 16 MHz
Buffer size: 4096 bytes

Protocol Sniffer Specifications

UART: 5,6,7,8 data bit formats, 2560 byte buffer.
SPI: 439 kHz max clock, All combinations of CPOL and CPHA, 2560 byte buffer.
I2C: 400 kHz max clock, 2048 byte buffer.

Oscilloscope Specifications

2 Analog Inputs
Maximum Sampling rate: 4 MSPS
Analog Bandwidth: 200 kHz
Resolution: 8bits
Input Impedance: 1 MΩ, 15 pF
Buffer size per channel: 4096 bytes
Input Voltage Range: -14 V to +20 V

Arbitrary Waveform Generator Specifications

1 Analog Output
Maximum conversion rate: 1 MSPS
Low pass filter: 50 kHz
Resolution: 8 bits
Output current > ±7 mA
Buffer size: 4096 bytes
Output Voltage: ±4 V

Posted November 14, 2013

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Kirt Blattenberger,

BSEE - KB3UON

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