Im newbie. I buy AD as like at the picture. Im try to connect AD to my UNO: ***. Using digital pins 8 through 11, proto shield installed. 1 Using the Analog Devices AD DDS with an Arduino board; 2 Initialising and Resetting the AD; 3 Setting the output frequency. I have paired may AD with an Arduino Uno, LCD display, Rotary encoder, and a few other small parts and have put together a very descent DDS VFO.
|Published (Last):||14 December 2011|
|PDF File Size:||5.33 Mb|
|ePub File Size:||12.90 Mb|
|Price:||Free* [*Free Regsitration Required]|
It works very nice. I need the signal to supply an ultrasonic transducer working at 40Khz. Wawa Shannon Member Posts: The cheap encoders do go bad. The resolution can be as low as 1Hz. Drag this Rotary folder to. Save the sketch under a new folder with a ardukno name.
I put a trimpot from 5v to ground and connected the slider to A1; then used the analog voltage at A1 to adjust the Ref Clock with this simple change: Can you advise please?
Will keep you posted and share the build when all the goodies arrive from China! What you ask is possible. You can also try atduino to the Arudino forums to see if someone there can help as well.
But the bottom line which should show the freq change resolution is rapidly cycling through the different steps. Can you advice on how I can achieve this starting from you design. I love to see what others do! How to simply test AD module is dead or not? The RX range is surprisingly wide and using a precision diode detector in leau of the useless stock detector makes this rigs receiver really nice.
If there are any questions please just ask. Adjust the zeros below. May I suggest you check that the Ardiino library shows as one of the libraries in the Arduino Sketch software. Hi, very much appreciate your design.
AD9850 DDS VFO
There is no error. You did not include the Rotary library file correctly. Also thanks for replying to my post so quick. Thanks for open source code that you share… Kostas-Greece. SDR ha that function.
Familiar with schematics, but the Arduino is a whole new show for me. Will it work in 4 bit mode, or do I need to get ardhino I2C compatible display. Made some adaptor pads using press and peel really must buy some new stock of this. Glad it works well for you. Leave a Reply Cancel reply Your email address will not be published.
The A9850 should work down to the khz range without modificatiion. Must be interrupt pins. Could you please help me with these? Thanks in advance for your time. I did check the posts and the only thing I can find is September 30, Please double check all your wiring. Please help me to make correction whats wrong with my schematic of my sketch.
Arduino tehNiq: Signal generator with AD and Arduino
Thanks for the project as it work like a champ. Waiting is now on the rotary KY out of China.
I would suggest to you that you take a look at http: Anyone have a better idea? So forgive me if these questions are silly: I tried ax9850 adapt the script, but it does not work.
In the sketch you have published I am getting some errors especially for the rotary encoder code lines. Like myvfo or newvfo….