AD9833 Programmable Waveform Generator

[@erfanamini4919]

Fascinating way to educate people, short videos with tons of information and a calm voice makes it more than perfect

[@AnasKuzechie]

Thank you

[@a0-zu3dt]

Absolut fantasitc. I feel unsure and dont know if i want to build my own modules. but your description is so good and you optimizations are so well that i am close to say "yes". Keep going on! Thanks for your enthusiasm.

[@AnasKuzechie]

Thank you

[@LMB222]

The resistors on your diagram are in the wrong place. The inputs for wave type are always low.

[@____________________________.x]

Your blog page is really interesting, such a great resource, thanks

[@AnasKuzechie]

Thank you

[@daCount0]

Nice, good and helpfull documentation of your project(s) here and on your webpage

[@AnasKuzechie]

Thanks

[@andrewwatts1997]

I saw a big change in amplitude with the sine and triangle wave. Where you filtering the output somehow or was that the chip itself doing that. With a lookuptable wave generator that this chip uses, amplitude should remain the same over the entrire freq range.

[@inaki9812]

Thanks. Very nice. A Little mistake in pull-down signal selector scheme.

[@____________________________.x]

Oh yes, nice spot 👍

[@muhammaduzairrashid7544]

wow, much appreciated

[@AnasKuzechie]

Thanks

[@andreabaldini7073]

last question ... to generate only sine is it right to ground the pins of arduino D3 and D4? thanks so much really kind

[@AnasKuzechie]

To generate only sine, disconnect the 2 switches, and in the C++ code replace the if statement with gen.ApplySignal(SINE_WAVE,REG0,f);. I hope this helps.

[@shahzaibjaved8826]

How do you connect the potentiometer to arduino pin A6? The potentiometer has 3 pins, how do I know where to connect each pin?

[@mbanc443]

One side of pot goes to +5v the other to GND and center to the Analog inpuit A6 or whatever input you provision in line 18 of the code.

[@STeaLiRaQi]

I have problem in this code There is so many errors i faced how i can fixed it?

[@solveit1304]

0.5V on sinewave, 5V on square wave - does manufacturer mention about it?

[@svensjegorovs]

Hey there, has someone an idea, how to connect the GY-9833 (AD-9833) to a Raspberry Pi Pico. The Pico SPI has 4 wires: SPIO TX, SPIO SCK, SPIO CSn, SPIO RX. The Module has only 3 connections for communication: SDATA, SCLK, FSYNC. Is there an library for Micropython available? First step for me is to find out the correct connection and setup of the SPI-connection to the right pins. On my understanding SPI works with MISO, MOSI, Clock and select signal. I'm new with the Pico and micropython. Best regards Svens

[@drinski6720]

Is it possible to setup duty cycle of square waveform?

[@qiaoshengzhang7372]

Very cool design! Where did you download the AD9833.h ? Or you wrote it by you own ? Thanks

[@FantaBH]

hello there, great video, with just one problem. Where to get your ad9833.h library , as one I found does not recognize few of commands used in your simple code, so it is obviously different library which you using in this example.

[@aijobaby597]

Whether you got the outpuy....

[@jonathanwong880]

Superb

[@AnasKuzechie]

Thank you

[@khushwantmistry1031]

Please guide for 10 k pot , I mean connection of three pin of pot , my circuit not produce any kind of frequency , please help

[@aijobaby597]

Whether you got the output....

[@exbf2]

hey there, is there any way to extend the possible frequency range from 1-5 kHz to something higher? for example: 1Hz-1MHz?

[@aijobaby597]

Whethet you got the output....

[@szekerespista3758]

Dear Mr. This module can output sawtooth signal/ ramp osicillator?

[@ClaudeDufourmont]

Hello very interesting, what is the difference between square and half square signal

[@bitlong4669]

A rectangle.

[@avighnaclasses5194]

Nice video, thank you Can we make it for arbitrary wave form such as sine pulse with hanning modulation?

[@andrewwatts1997]

Sadly no, it only outputs sine, triangle or squarewaves. All waveform calculations are done within the ad9833 via rom lookup tables.

[@shambhulingayya.n.doddapuj9702]

Thank you, so much for the wonderful demo :). Can you please let me know if it is possible to generate a 30 kHz pure sine wave with this ad9833?

[@AnasKuzechie]

Hi. It’s been a while since I made the video. You can always refer to the data sheet of the IC. Thanks for your feedback.

[@ceylontruckers8428]

I did the same as in this video. But I got only sine and triangle wave patterns.😥Please reply sir.🙏

[@AnasKuzechie]

I’m not sure what’s happening. I do have other tutorials where I programmed the chip from scratch (no library used) using Assembly or C++. I interfaced the AD9833 with ATmega8 microcontroller.

[@ThomasLouttit]

Getting an error saying "Compilation error: AD9833.h: No such file or directory" How do I fix this problem? I downloaded an AD9833.h file but not sure how to include it in the Library as it is looking for .zip file. Help Please.

[@m.karthikkumar8836]

I am having the same problem

[@hencosteenberg6685]

Do you know if it is possible to do bpsk modulation at 5mhz with a esp 32

[@andreabaldini7073]

hi, is the code right so short or is a part missing? and the 10k variable trimmer how should it be connected between arduino and ground or between arduino and positive 5v ?? Thank you so much

[@AnasKuzechie]

Hello. The code is okay. As for 10k pot, middle terminal to Arduino pin, one side pin to ground and other side pin to 5V.

[@andreabaldini7073]

@@AnasKuzechie very good ! 👍

[@RyanSi2000]

Can we set/control the Amplitude in this module ?

[@AnasKuzechie]

Not in this project. I do have other tutorials where I wrote a library for the module. Please refer to those videos as reference.

[@think7677]

I have same code write and proper connection do but not generated sine wave and triangle wave .

[@a0-zu3dt]

Hello. I first would check, if the AD9833 get the right signal. So make a print command, read the inputs from 2 and 3 and check what the arduino says. Both on (1/1) - triangle 2 low 3 high (0/1) - sine perhaps you took the wrong switches - their are different types - (i had this problem before) second u can comment out all the section were the switch read is. then the arduino should send "waveType = TRIANGLE;" to test. May this help you

[@a0-zu3dt]

I watched again the circuit. It is very important to connect the switch properly. Outherwise the arduino make "non sense". You should read some articles on how the arduino digital input works. you need in any case a 1k ohm to ground to read inputs properly.

[@50Hz]

Does the sinewave go below 0V or is it all above 0V

[@AnasKuzechie]

All output signals bound between 0 and 5 volts

[@50Hz]

@@AnasKuzechie thanks for the responce i was using an AD9851 thought i might use this as an alternative. But probs not. The AD9851 has trippled in price so makes bricking them costly for me.

[@laflaf3d]

@@AnasKuzechie so can you explain low VPP that we can see in your video please ?

[@rendymuhammad8090]

Can we display both signal (example : sine and triangle) in the same time?

[@AnasKuzechie]

No, since there is one analog output.

[@SatishKumar-yn8tr]

What is sinewave amplitude. Please reply.

[@AnasKuzechie]

5V peak to peak

[@laflaf3d]

@@AnasKuzechie why do you say that when your VPP is 544mV (at 3:04 in this video) ? Only your square is near 5V. I ask that because I am looking for the cause of this difference. Indeed I observe the same phenomen on with my module

[@tongpan2001]

May i know where you get the AD9833 board?

[@AnasKuzechie]

AliExpress

[@planker]

Excellent. Perhaps this is correct path, too much fake XR and other IC's with bad wave forms. I'll do this it's simple enough, I might even try the ATtiny88 board that hasn't been able to find a job. Man O Man I really want this to work. Thanks.

[@AnasKuzechie]

Thanks for your feedback

[@bitlong4669]

That chip is like $20 tho… there are much cheaper ways of accomplishing this.