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Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
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Wristwatch Oscilloscope Kickstarter Project
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.
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.
Logic Analyzer 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
- Internal PDI interface
- 8 tactile switches
- USB connectivity: PC application available, Android App available.
Protocol Sniffer Specifications
- 8 Digital Inputs, 3.3 V / 5 V tolerant
sampling rate: 16 MSPS
Frequency counter: 16 MHz
Buffer size: 4096 bytes
- 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.
Arbitrary Waveform Generator 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
- 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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