Please return the kit to the 48 project display as you found it.1) What tools do I need to develop my own programs on the XScope?īesides the power supply, you need an external programmer, such as the AVR ISP 2, or a debugger, such as the AVR JTAGICE mkII or the AVR ONE!. When you are through with your project, please remove everything EXCEPT for the oscilloscope module and the little wires as shown. Note that I have ch2 of the scope monitoring the AWG output, which is acting as the clock input to the chip. We will need to change the output of our AWG to a square wave since digital circuitry is designed for binary or 2-level (on or off) signals not analog (continuously varying in amplitude). The Xproto lab Scope has an 8-bit logic analyzer we will only need 4 of those channels to monitor Q3, Q2, Q1 and Q0 outputs. We are simply using it to generate interesting signals so we can see how a logic analyzer works. Old digital clocks used to use discrete logic like this before microprocessors became the less-expensive alternative. This is a diagram of a 74LS193 BCD/Decade Up/Down Counter. Logic Analyzer Display of Digital Counter Now increase the AWG frequency to the high end of its range note how ch2’s waveform shrinks relative to ch 1.This RC circuit is a low-pass filter. Note that the amplitudes of ch1 and ch2 are about the same. (You can change the channel 2 trace position to bring it even with channel 1 for ease of comparison). Make sure the AWG is set for sine waves and adjust it to the low-end of its frequency range while observing the oscilloscope display. However, the way this is wired sends the higher frequencies to ground, thus attenuating the signal. The way it works is that a fixed resistor presents the same resistance to any frequency (in theory) from DC (direct current) to light waves but a capacitor is reactive (its impedance changes over frequency a capacitor blocks DC but progressively offers less resistance the higher the applied frequency goes. A simple audio filter can be constructed from just a resistor and a capacitor, it is called a RC circuit. As the sliders are moved on a sound board, filters and amplifiers are engaged to boost or diminish signals for the desired effect. Channel 1 is monitoring the output of the AWG, channel 2 is showing the output of the diode circuit, how it chops off the negative portion of the sine wave.Īre you familiar with this piece of audio equipment? The graphic equalizer? The left-hand side has the lowest frequencies and the right-hand the highest. If the diodes are facing the right direction, they will pass most of the positive signal and shunt to ground most of the negative portion (the diode itself will consume. This simple circuit is a half-wave bridge rectifier. If it does not work: ASK FOR HELP! (That is why your MakerSpace is here). Once you are satisfied that the scope is working, proceed to the 3 projects below.
GABOTRONICS XSCOPE SOFTWARE
You can test your software installation by simply running a jumper wire from the AWG output to the channel 1 or 2 oscilloscope inputs (make sure ‘trace’ is checked). Type command line $sudo sh usbfix.sh (followed by your user name) DEB package that does: Linkĭouble-click the appropriate.
GABOTRONICS XSCOPE DOWNLOAD
I wrote on their forum that the new Ubuntu Linux package did not work for me if you find that to be the case, download this old. Here is the link to the Gabotronics page for the software download: Link Please leave the small jumpers for power and ground for the scope in place for the next user (so it does not become ‘burnt toast’). You might notice that there is not the same power supply in this kit as for the other bread board ones this project will be powered via USB and the miniature oscilloscope.
GABOTRONICS XSCOPE PROFESSIONAL
In my professional work, I have paid $50K for an oscilloscope that could resolve gigahertz frequencies this $20 scope only has a 200KHz bandwidth, yet that is very useful for audio and low-speed digital work. The square grid pattern helps the technician compare the relative amplitude and period of waveforms. It is the most basic general-purpose test instrument next to the digital volt/ohm meter. What would you think of a $20 instrument that was a 2-channel oscilloscope, AWG (arbitrary waveform generator) and an 8-bit logic analyzer? It seems crazy, but it is true! Using your computer as the display cuts the cost of a test instrument down considerably as does micro-electronic wizardry.Īn oscilloscope is a test instrument that displays changes in electrical voltage over time. USB type A plug to type micro-B plug cable If something is missing contact us at via Email.) Kit Inventory (Always check to see that all of your parts are present.
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