Arduino for Amateur Radio: DDS VFO using the AD9850
Вставка
- Опубліковано 27 лип 2024
- Using an Arduino to drive an AD9850 Direct Digital Synthesiser Module as an HF variable frequency oscillator.
Contents
0:00 Introduction
0:33 The AD9850
0:46 Plugging it into an Arduino board
1:18 Rotary encoder
1:39 LCD display
2:11 Plugged in assembly
2:35 Summary of main parts
2:47 Commercially made alternatives
3:16 Get some Arduino experience first before building this
4:47 A VFO control sketch (program)
6:08 Block diagram
6:24 Customising the code for your needs
9:30 A more detailed description of the circuit
10:24 Summary
Links referred to in the video are as follows:
Arduino website www.arduino.cc/
Build own Arduino for $5 • 1-Day Project: Build Y...
Digital voltmeter www.electroschematics.com/9351...
Arduino single frequency generator with code webshed.org/wiki/AD9850_Arduino with code
VK5TM website www.vk5tm.com/
AD7C website: www.ad7c.com/projects/ad9850-d...
VK8BN website: vk8bn.me/info/arduino2/#more-224
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(then if you buy something I'll get a small commission at no cost to you) - Наука та технологія
I admire your technical skill and ability to put together things from discarded objects.
I have been inspired by many f our projects.
a lot of useful info, ordered my parts and gonna attempt a few.
Thanks for doing these videos. I am learning a lot by following you.
The AD9850 is so much fun and you can use it for a lot of cool projects: WSPR, RTTY, Antenna Analyzer etc. etc.
Wow... nice work Peter, will be curious how this project evolves.
👍Thanks for posting this Peter.
Esse sim, tem todos os esquemas e modelos de programação para set do arduino. Ótimo
Really useful video! Most just throw "Arduino" at the problem without further elaboration. I've never done anything with one, but am looking to start. Thanks again!
Hi Peter,
Thanks for posting this video. Years ago I did a fair bit of PIC programming, but nothing much since. Until I saw your video I knew next to nothing about Arduino - it looks very "plug 'n' play".
Cheers & 73,
Mike VK2IG
I think it was ad7c who made an entire schematic and demo code for this. Love this module!
*Joblessalex* can you find out where I can view his (ad7c?) video and get a schematic?
I will still need to find videos on programming this Arduino thingy. I never coded a radio or anything since I quit working in electronics about 30 some years ago. Just getting back into it because getting out and about has severely diminished. Radio will be my form of participating with the outside world soon.
very informative.
you should review the ubitx code and what it has done
Hello Peter! There is a way to make an I Q VFO using two AD9850 for DC phasing receiver? I think this would be a nice solution to make a general coverage rx right?
Alejandro Weber Sorry... great video as always!
+Alejandro Weber Quite possibly. Never done it though.
Thank you for putting this together...
73 KB3ZYN
5 & 9 plus description Peter but please..ARDUINO not ARDRINO..
73 G3NBY.
I am confused. Is the RF output on this VFO to be used in the place of a crystal oscillator in a radio or alike? I am not really sure why or how a DDS VFO would be used in a RF project.
- VK3FBIC -
You'd use a DDS if you want frequency agility. It's more stable than a free-running VFO which uses (now) hard to obtain variable capacitors and reduction drives. Plus you get a digital readout!
vk3ye That makes sense. Would you simply put it in place of a variable capacitor and crystal?
In place of the whole VFO circuit - not just crystal & v/capacitor.
vk3ye Thanks a bunch peter! When i learn more about arduinos i will give this project a go! And put it in a RF project.
Cheers - VK3FBIC -
Too bad the sketches and libraries rarely compile correctly and there are hours and hours and hours of frustration
Bonza !
Di tunggu balik nya