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Thai Tamarind Fans

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Woldemar Rozhkov
Woldemar Rozhkov

Cd Dvd Rom Generator 1.50 Download ##TOP##

(a) On-line troubleshooting via a searchable Knowledgebase, answers to frequently asked questions, the latest driver and firmware downloads available at (b) Toll free telephone support at 1-800-OK-CANON (652-2666), Monday through Friday (excluding holidays).

cd dvd rom generator 1.50 download

The idea of my project is to rethink your smartphone as a portable, powerful and secured platform, able to simulate an oscilloscope and a signal generator for your electronic circuits. Here, your phone isn't just an accessorize or an ordinairy remote control : it becomes the center of the project, and a tool to help you create better things in the future.

The signals generated by these apps go directly to the audio output of the phone : to the phone speaker if there isn't headphones plugged, or to the jack output if the phone detects headphones. I wanted an electronic signal (not a sound) in exit of the phone, so I decided to use the jack output. So, the electronic signal comes out the phone by the jack output and goes to the electronic circuit with a jack cable. The signal generator application chosen for this project (Function Generator) takes advantage of the smartphone stereo output : the first channel of the signal generator is connected to the left audio side, and the second one is connected to the right audio side. So, you dispose of 2 separated signal channels (left and right) using the single audio output of your phone!

In this project, the exchange of signals between the electronic circuit and the phone is constant. First, the signal generator simulated on the phone should be able to send waveforms to the right and left outputs of the stereo jack. Then, the oscilloscope simulated on the phone must be able to receive an electrical signal using the microphone input of the phone.The only way to make all these connections between the phone and the circuit is to use a 3.5 mm jack cable with 4 poles. Thus, the use of the oscilloscope or the signal generator is done with a single cable.To make this cable, start by cutting a 4 wires cable of 30 cm long. Then solder to each end a jack male connector, respecting the same wiring on each end. This cable will be like an extension cable between two female jacks.An extra cable can be made to use a second phone with this project.

To test the proper operation of the signal generator, connect a speaker to the signal generator output power, and generate a low frequency sinusoidal signal (between 300Hz and 1kHz). You should hear a sound from the speaker, becoming more and more acute when the applied frequency becomes high.

The audio bandwidth of mobile phones is reduced to human audible signals. This means that the signal generator and the oscilloscope apps will be able to generate and process signals from about 150Hz to 15kHz, although the signal generator app can generate signals up to 22kHz. Beyond this bandwidth, the signals are more and more weaker, with a lower quality.

Obviously, this project can not compete with the quality of professionals signal generators and oscilloscopes. The Oscillophone is dedicated for students studying electronics and makers. If you must work regularly with electronic signals, invest in oscilloscopes and signal generators is not a waste of money!

An important limitation of this project is the simultaneous use of the signal generator and the oscilloscope. On my Android phone, when the Function Generator app is opened and then reduced in the background, the sound generated is turned off. This prohibits the use of both applications at the same time and seriously undermines the usefulness of this project on some circuit.

Another solution is to use two phones: one as a signal generator, the other as oscilloscope. This option has been made during the assembling of this project, which integrate two jack female connectors in parallel to the circuit and 2 jack cables.

Could you explain to us noobs why you changed the oscilloscope's input high-pass filter capacitor and the resistor after the op-amp?Anywhere I look this up, 0.1uF is suggested for DC removal. As for the resistor, I don't have a single clue actually.Also, I couldn't find an answer for why using 8V specifically for the function generator. I would think for testing speakers, but those typically need 10V+. Although, I've seen function generators with 8V out on the market.One last question is, why is there a 1.8V limit on the phone's mic input specifically? The microphone input level is 1 - 100mV and the line level goes to 1V - assuming the phone's audio is on the consumer quality side, not professional. I would think that 1.8 is more like a safety measure so would question the characteristics above 1V.Thank you!

Hi, sorry. I'm confuse. There are two female jack connector at the rear side, for two range of signal generator. If using as an oscilloscope, i need to add one more female jack connector (output). So total 3 female jack connector?


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