Make your X-Y capable analog oscilloscope more useful!

Your oscilloscope can do a lot more using the

Dutchtronix AVR Oscilloscope Clock

Now even better with hardware version 3.1, a major upgrade

"Standard" kit

NOTE: THIS IS AN ARCHIVE COPY. THE PRODUCT IS NO LONGER AVAILABLE.

 

Look at the Dutchtronix AVR Oscilloscope Clock,  firmware version V3.5a:

 

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Connects to your analog scope in X-Y mode using probes (1x, 10x) or cables.

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Uses the new Atmel AVR Atmega328p with twice as much memory

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On board 5V power regulator for use with user provided wall adapter (8-15V DC center positive)

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On-board Real-Time Clock IC with 32.768kHz crystal and battery backup: this clock won't lose time!

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Digital to Analog converter with built-in OpAmp (AD7302): no probes required.

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Professionally made dual sided 3" x 3" PCB (with solder masks and silkscreen)

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Optional external 5V Power (clock side cable connector included)

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Two tactile switches on PCB

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Intensity Control Output, both positive and negative going

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Header for External Clock Signal (GPS 1 Pulse Per Second for example)

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Serial Connection is available at TTL (+5V) levels. Note that use of the serial connection is completely optional.

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PCB has footprints for various add-on components, including:

 
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true RS232 level converter with standard female DB9 connector

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BNC connectors to allow the use of BNC cables

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USB interface

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On-Off switch

 

Firmware features:

 

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Multiple applications pre-loaded: Clock, Terminal, Function Generator (The last two will require an RS-232 Level Converter circuit to connect to a PC)

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User control with 2 push button switches, including auto-repeat operation

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150-250 Hz refresh rate (dependent on the selected clock face mode)

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Set Time and Date using the on-board button switches.

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Set clock options and modes with On Screen Menu using the push button switches

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Roman Numerals Clock Display Option

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Binary Clock Display option, together with Hexadecimal numeric Display (Bi-Hex clock)

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Fractional Seconds display option showing time in 1/100 of a second increments.

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A total of 30 different Clock Display combinations is possible.

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Optionally add your own name to the Clock Display

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Automatic Daylight Saving Time correction for the years 2008-2014 for the USA and the EU

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Automatic Screen Repositioning to prevent screen burn-in

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Display Calibration mode

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Play modes to have some fun with the clock.

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Clean Reset of the EEProm Configuration Data option

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Select from Multiple Baud Rates on the menu

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Automatic Time and Date setting when connected to the NMEA Serial output from a GPS device

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On board very small boot-loader, less than 512 words, leaving 31KB code space available

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Boot-loader is STK500V1 compatible and uses avrdude to upload firmware (see WinAVR)

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Firmware pre-programmed and upgradeable through the Serial Interface using the built-in boot-loader (this will require an RS-232 Level Converter circuit to connect to a PC)

 

Besides keeping accurate time using both clock hands and numeric display, this AVR clock provides a host of options like:

 

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Numeric time display field showing 12hr, 24hr, hexadecimal time or the date

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12 Hour, 24 Hour, Roman Numerals or mininal clock dial. For true geeks, we offer the  binary clock display (with hex numeric display)

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No need to adjust the clock for Daylight Saving Time; it can be done automatically

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Show the clock features to others using the built-in demo mode

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Need more accuracy: turn on the chrono mode to see the time in 1/100 of a second increments.

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Calibration screen to optimally adjust the scope and probes.

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On board seconds indicator Led on or off

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Automatic Screen Repositioning on or off

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Play modes: run clock fast, in reverse or both

On Screen Menu

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Clean reset the clock to its virgin state

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Enter the name of your choice using the menu and it can be shown on the clock face

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Connect your GPS module using a TTL level Serial Connection and the clock will accurately display the current date and time

 

Changing the time or date is done using the on-board push button switches; the item being changed will flash. Depending on the selected display, this can be text (numeric display), a clock hand (analog clock only display) or even columns of "lights" (binary clock only display).

 

 

Binary Clock Display 08:35:27

 

A video showing the AVR Oscilloscope clock in DEMO mode on a Tektronix 608 X-Y monitor is available on YouTube. An X-Y monitor is essentially a low frequency oscilloscope without the time-base section. The Tektronix 608 has a very good CRT and the image quality is the best possible.

 

 

 

This AVR Oscilloscope clock is available as a kit, using all through-hole components. The kit includes the components necessary to assemble the board shown below (the Standard kit), including a preprogrammed ATmega328p microcontroller. It does not include an oscilloscope and requires an external wall adapter (7-15V DC, center positive) or  +5V regulated power source.  It also includes a connector for the Power header on the board. The user can use this connector to build a +5V power cable.

 

 

PCB Dimensions: 3" by 3"

Push button switch S2 is included with the "Standard" kit

Firmware in the "Standard" kit is V3.5a

 

Low-end Digital Scopes will not work well, High-end Digital Scopes do work (Tek TDS2014B, Tek TDS3034B, Tek TPS2024,  HP54600B)

 

Please note that the firmware used on this AVR Clock is an Open Source application (the Source Code is available below) and is completely free. The price of the kit covers the parts, labor, and distribution only; there is no charge for the firmware and it is programmed into the AVR microcontroller as a courtesy.

 

 

 

 

Clock with Roman Numerals

Calibration Screen

 

Looking for the original version of the Dutchtronix AVR Oscilloscope Clock? Click on the image below