Scullcom Hobby Electronics #59 - Design & Build a Function Generator Mk2 Part 1
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- Опубліковано 21 лип 2024
- In this project we will design and build a Function Generator. The Frequency will be controlled by using a rotary encoder and functions controlled by push buttons. A 20 x 4 LCD and Arduino Nano will also be used for the user interface and control.
Below are the download links for this project:
Ardunio software version 1.7:
www.scullcom.com/Function_Gen_...
Schematic, Layout and Parts List:
www.scullcom.com/Function_Gene...
PCB Gerber files link below:
www.scullcom.com/Fun_Gen_Mk2_M...
PCB size is 100mm x 99mm - double side print. - Наука та технологія
UPDATE on Louis (11/28/2022): I reached out to Louis and he responded back letting me know he is “doing OK, just getting a little older”. He also said he has been busy with projects around the house and with his family, and cleaning up his electronics shed to make more room. I don’t want to go into more without his permission, but just wanted to let all who read this know that he is okay.
Thanks for the update, came here to see if all was ok.
Great news! Would so much like to complete this project and perhaps a new one sometime. No other channel comes close!
@@michaellindborg1510 Yeah, he’s a fantastic gentleman and I am so glad too that he’s doing okay.
Hi F16. I'm glad Louis is okay. He's freed up his lab by now, but perhaps he could provide the community with the solution he used years ago to create the dual power module for this project. Do you think he could just provide us with the schematic? Can you help us by asking Louis? No explanation, just a schematic of the solution used. Would be great. Thank you.
@@singleton2014 09-salient.pens
2nd April 2021::: Dear Louis, I have been following your channel for many years and have found you to be an absolutely charming, intelligent and keen person. Your videos and projects are brilliant and have been extremely informant. We do not know each other personally, but if I would, I would consider you very sympathetic and a good friend.
It's been quite a long time since your last Video and your last comments. It is obvious that something troubles you. Some have posted comments inappropiate to your absence on the channel. They lack empathy to understand, that there are sometimes things in ones private life to which one has a higher commitment. Be it ones own health or that of some family member. I feel for you and your loved ones and wish you the best and if in my or your community followers power... strength, good or better health and all the best!!
would be great to hear from you in any which way possible... Take Care Pierre Kiefer
Louis ... we truly hope you are doing fine. Just a 10 second update video from you would really be the best Christmas present for us here.
All the best for 2023, Merry Christmas !
26 May 2022 ::: I have thought twice about saying something like this...... But, I fear that Louis is no longer with us, looking at the timeline and any chit chat on his website, the latest reply I can find was December 2018, and one comment lower down about 2 years back according toy YT, I think that the pandemic may have taken its toll, I do hope that I am horribly wrong and that Louis is still here but just sick and tired of certain disrespectful comments that have been made. This man is one of the few who is able to explain and teach theory in such a way that one could understand it. Louis, May you be blessed in all you do. You have been a great inspiration to many of us that follow this channel...
I've had the very same fears and worries. His videos and projects are among the absolute finest and most educational Ithere is, and I treasure them highly.
Maybe we should contact UK officials to give us an answer? I really do want to know what's happening. Hope mr. Louis is OK and doing well.
Although we are not longtime friends, for some reason I feel we are. I hope you and your family are well. I sure miss your projects. Real electronics! Can't beat it. Hope you can come back soon.
Hello Louis... you kind soul and electronics extraordinaire... where art thou?!!
Still about just been busy.
Electronics community needs you back sir. This is a call of duty.
@@F16_viper_pilot Thats very good, hopefully he returns when he feels like it. I would much appreciate new videos from him. Thank you very much for letting us know. Love from Turkey...
The amount of effort and attention to detail you put into your videos is always impressive. Seriously.. the explanations, the whiteboard drawings, and so on.. it's all very much appreciated. Fantastic job.
thanks for your kind comment, much appreciated.
Regards,
Louis
He is the professor we all wish we had! If it’s okay to ask, did you ever teach at University level? Stoked to see part two!
Thanks for your kind comment.
After watching hundreds of electronic vids, I can safely say, this channel is one of the best.
We are missing you Louis! :D hope everything ok and just you are finishing the fusion plant! :-)
indeed !
Thanks. I am fine just been very busy with other family commitments. Regards, Louis
Thanks Sam.
@@scullcomhobbyelectronics1702 Hello Louis. How have you been. Hope you are staying healthy these days. James Hauser
Scullcom Hobby Electronics I'm glad to hear that you're all right. Your loyal subscriber from Ukraine.
Just wanted to say "thank you" for all your videos and projects. I know it's now been years, but just wanted to stop back by and tell you how much I appreciate what you did for a guy that had more curiosity than brains. You helped relieve a bit of the "brains" issue with your videos and the time you took to explain each thing. I loved your teaching style and the way you started each project in a "crude but works" way and modified it in logical steps until it was a good lab worthy piece of equipment. Miss the videos but hope you're keeping healthy and happy in whatever you are doing nowadays!
A TRUE ENGINEER, in every sense of the word! Thank you Louis for your service here on UA-cam, and passing on some of your knowledge and experience.
Hi Louis,
Thanks VERY much for all your work in making these videos, and the associated blog/website.
I've been using them to help teach me about electronics: I've been more of a user of electronics before.
I see a gap in the activity, and I wanted to say we all miss you. Keep well.
Loyal subscriber in Sheffield.
Another superb, very comprehensive project. I'm sure you inspire many others to get involved with electronics. Thank you.
your videos are the best of the best in the electronics department. Thorough explanations, affordable and useful projects, I learned so much from them. I'm really sad you're not posting anymore. I just hope everything is ok with you and hope that sometime, somehow, you'll come back and teach us more and more!
The best educational channel I've ever seen, we are missing you!
You are one of few here on youtube that I must see! I understand that you have a life to live, but we all miss your talent and great videos! You are like the best uncle one can have, despite never to meet you in person! Have a great day!
Thanks Tony. Just been busy with other family commitments and work.
Having only recently discovered your channel I'm gradually working my way through. I just wanted to thank you for sharing your knowledge with this relatively new and inexperienced but enthusiastic hobbyist. I really enjoy the way you deliver the tutorials. Please keep them coming and thank you.
He quit broadcasting over three years ago now. I do hope he's OK.
You should have a lot more subscribers than 27K . Your channel is excellently edited and explained . Thanks for your contribution to electronics and engineers , enthusiasts .
Noticed you checked in a month back. Glad to hear you’re OK. Miss your presence. I learned a lot from your projects and built many of them. In fact I still have 2 to finish.
Looks like another well thought through, well documented and well described project.
You Sir are one of the best UA-cam educators.
Thanks Flemming for your kind comments.
Regards,
Louis
Mr. Scullcom, I hope we will se you in future videos, I love your content and can´t thank you enough for all your projects!
Happy new year! I do love the projects provided here, everything is nicely explained and the end results are really nice.
Evening Louis!
I've been watching a few of your others as well - beautifully presented and explained in every one!
I'm employed in Industrial Electronics, but I am primarily trained as a repair engineer rather than design, and this is why your projects appeal so much, as you explain the design principles!
HUGE Thumbs-Up from me, eagerly looking forward to Part 2
Chris Williams
Thanks Chris for your comment.
Wherever you are, or whatever you're doing - we wish you the best.
@@F16_viper_pilot Outstanding! Thank you for the update.
I would like to thank you for the contents of your channel, my workbench is becoming complete with your equipment, in addition to being excellent, the content very well explained ...
I thank you so much for sharing your knowledge, please continue your excellent work.
Ernando from Brazil.
I really miss your videos. You sparked my interest in electronics.
I have just read that you are ok Louis which is a relief as I have been concerned over the past year. all the best Berni
Dear Mr. Scullcom, it has been over 2-1/2 years now and I been hoping to both see you back and to finish this project. Your videos were unique in that you did the full round trip in both hardware design and software. So your videos are very-much appreciated and needed and so your absence from UA-cam is very-much felt.
But I must ask you: In all honesty (as a long-time viewer), will you actually be coming back (as you alluded to in your comment-replies) or is this the last video from you? Thank You!
I was already worried, but I am glad that you are well and hope that you continue.
I have no idea why your channel isn't more popular. But you have a loyal fan base! I've learned a lot from you. I hope you're OK and that you'll continue to upload videos.
I also was kind of worried that something bad happenen to you. Glad to see you’re back on the Tube!
Thanks Paul. I have just been busy on other things of late.
Hey ! Just to say I'm glad you are doing well, I just enter to know about you and I read the last comments. Cheers !
Another great project! I really enjoy your videos because they are a masterclass itself. Thank you.
Thanks Isidoro.
Thanks
Mr. Scullcom, we are all worried about you, I hope you are well, please leave a message for us. thank you
Thanks for your concerns. I am fine just been very busy with other work.
@@scullcomhobbyelectronics1702 We all hope you'll find some time for a small video. Thx.
It’s time to come back.
@@scullcomhobbyelectronics1702 please return, your videos are very good quality.
Where are you 😔
We are still missing you Louis! I hope you once return with some new projects :)
Thanks Péter.
Glad to see you back! Great project!
Thanks Rudy,
Its just finding the time to do them ;-)
Regards,
Louis
Hey Mr. Louis, please, return to UA-cam, your channel is the best. Much Love.
@Scullcom Hobby Electronics, Hope you are doing fine, i miss your little project/tutorial video's hope all is well there and that we may once more love your vid's
Hope your well. I still have my function generator using the xr2206 chip which i build in 1979, 40 years ago. Old Gits at play :-)
Beautiful Video well explained and beautifully drawn diagrams as always. Thank you.
Thanks.
We miss you.
I wonder why Mr. Scullcom didn't upload any new videos in the past 8 months. I do check his channel now and then for new projects.
Since December I asked myself, if this gentleman is still doing well?
If you read this post, sir, please leave a message. Greetings from Germany
I was wondering the same. He did mention in another video that he had some other commitments
keeping him away from projects. Hope all is good, and he is able to return soon.
@@bassreaper7779 I also check in from time to time and am a little concerned and hope he is doing well.
Robert
Hi Peter,
Thanks for your message. Yes I am still fine. Due to other commitments over the last few months I have not had the spare time to make any new videos, sorry about that.
I will try and do some updates as soon as I can.
Best regards, Louis
@@scullcomhobbyelectronics1702 I too have been concerned about you friend and I'm pleased to hear that you are OK.
No rush, but when you find time I would love to see more from you in the way of videos because they are some of the best on youtube IMHO.
Robert, K6FNI
@@scullcomhobbyelectronics1702 Good to hear from you
Very nice video. I really enjoy the way you explain everything.
Thanks!
Thanks Bogdan.
I've have a couple of commercial func. Generators; and I have an XR-2206, as well as 2 ICL8038.
Although I don't need another F.G., It looks like I may build this. I have a number of test equipment
device's in a case in the trunk of my car. So this could come in handy, and add to my collection
of test equipment. As always, Thumbs-Up!
Thanks Ted for the comment.
Regards,
Louis
You are awesome, keep going👌
May our god give your strength and health to do more awesome work like this.
Love your videos - hope all is well!!!
@@F16_viper_pilot Nice - thanks for letting us all know.
Its a shame this channel is so underrated....
The amount of effort and details in you videos is priceless, thank you.
A bench power supply for the next project?
Hope you get time for electronics again soon. We are waiting for you. Hope the best for you. :)
I love the new projects thanks Sr you are the best.
Thank you.
Underrated channel really
Hi Louis, I do hope you are well as you ha ent been back to this channel for 4 months and I am so looking forward to progressing with this project
Hey Louis great video. I read the comment for the reason why you haven’t made any videos. Hopefully soon you will get some spare time because you’re really good at making them.
Very nice projects as always. Thanks a lot for sharing your knowing. I am learning a lot with that
Nice to hear you find it helpful.
Regards,
Louis
A long awaited Scollcom video.
I was getting worried :), did you drop out of youtube or gotten ill, good to see you back strong as ever.
It will be interesting to see where you take this fine project, i will surely be waiting for part 2.
Nice touch with the AM funktion.
Thanks Flemming. Yes its been awhile, I have been busy doing other jobs at home and at my mothers new house just lately so had little time for electronics.
Regards,
Louis
Waitting you comeback!!!
Great educational videos. Hope you are doing fine. Thank you.
We miss you !
Nice job by the way, truly the " Art of Electronics" or how she should be done. :-)
Morning Louis!
I'm looking forward to Part 2 and any further parts!
I did notice in your demonstration that the triangle was slightly distorted at the corners and the square-wave corners a little bit on the rounded side!
Will you be covering upgrades/developments regarding these slight waveform distortions in the next parts?
I would be making one as a mains-operated bench project using two ready-made +V, -V and +5V psu board kits - is there any objection (from a performance point of view) to doing this?
One final point, I'd love to see a video from you on making front panel cut-outs, etc., for an LCD module as used here - any chances?
For the spike in the sine wave, put a 330 ohm resistor between pin 13 and 14. Put across this resistor a 1K trimmer for adjustment.
Thanks Roland for the suggestion. I will give it a try.
Regards,
Louis
Just checking in I hope all is well.
Hi Louis hope your keeping well.
Thanks Brian. I am fine just been very busy of late.
i love all of your videos , and i hope you are doing OK
i am very glad to you sir .your work is so nice.
Thank you.
I know it's been some time but has anyone built this project, and maybe finalized it and made it functional? I have a pcb made and populated, but I'm struggling with the rotary encoder and I cant seem to get the potentiometers tuned in for some reason.
Hi Louis Hope that you are well. Can you include the schematic for the power supply? Thanks!
I wonder if anyone had any problems getting the negative supply working. Mine is cursed. I have checked all assoc. parts and measured the inductor to be sure it is in fact 220uh. Replaced U1 three times. Neg. reg. is working fine. BTW, thanks Louis for all your help. The only way it will give -6v to the main pcb is with my bench supply connected to TP2.
I hope this note finds you well.
Any update on your channel would be much appreciated by yours truly. Thanks.
Does anyone know where I can purchase a pcu for this project with the + and - 9v and 5v with ground?? Thanks much. Am going to build this interesting project.
Afternoon Louis!
Any more news on this project? I've just received the main PCBs and I'm looking forward to the power supply and display sections for this, as we're all at a sticking-point awaiting your next instalments on this!
I had the circuit board printed and populated. I have good power going to the board. I have downloaded all the libraries necessary to make the arduino sing. All is good. It boots up with his message (yay), but then the rotary encoder wasn't working correctly. It would try to change the multiplier through rotation and not the button push. I double checked all wiring and paths and they are ok? Has anyone else made this project yet? If so, did you get the encoder to work properly? I have double checked the gerber files using gerbv and the board is manufactured just like the file, so it isn't an error in producing the board. Any advice would be appreciated. By the way I have a few extra boards made up if anyone else wants to give this project a try.
Dear Sir, I hope you are doing good... I used to watch your videos. I miss your project videos
Where are you sir? Your content is amazing.
Has anyone else built one of these? I would really appreciate some feedback. I have the circuit board built but as the extreme newbie that I am, I am puzzled on how to supply the 5v, 9v and -9v to the board. I would really appreciate some help. Will this work if I supply 5v, 12v and -12v. I can find a voltage supply that has that??
Louis, how do you like the Siglent?
Hope you are well Louis.
Brilliant as usual...
Thanks Marco.
Hope You are well Mr. Louis!
@@F16_viper_pilot good to hear that
Afternoon Louis!
Everyone who views your wonderful Channel is really concerned for your well-being Sir!
I'm going to be ordering my PCB for this when I get paid in a couple of weeks time and we're all anxiously waiting for Part 2 and subsequent instalments!
How far have you got with software and design improvements - does V1.7 you've provided include the things you mentioned that needed dealing with at the tail end of Part 1?
He quit broadcasting over three years ago now. I do hope he's OK.
Scully? Are you there? We ve been missing you quiet long now
Morning..... I have been watching your channel. I am a beginning electronics hobbyist. Which of your projects would be good for a beginner?
Hi. I know it has been some time since part 1 of the project but I have just discovered it. The links to the gerber files and Schematic are not working. Is there any way to get hold of them? I have looked at number of projects and yours is by far one of the best. I hope all is well. Love your other projects.
great mix of analog and digital
Thanks
Very interesting design. Looking forward to part 2.
Thanks.
Hey! I miss your movies very much. I like watching you! Greetings from Poland. Take care of yourself! when you create new episode? :)
Great Project
This video is 3 years old. Are there more coming? More importantly, are you well sir?
One thing I would change. Rather than limiting the output range of the DAC, I would have set the gain of the inverting amp to give me a voltage swing of 2.525V then applied a DC offset to shift it down to the required voltages. That way your not wasting the resolution of the DAC.
Perfect solution and thanks.
I'll share with you my project later, which I've done the same Project using FPGA (with DDS concept), I know that FPGA is little bit expensive. the range I got was between 1- 1000'000 Hz.
Is there any way to go beyond this range, i.e. more than 50MHz?
I appreciate your experience and Hard-Working.
thanks again
Awesome video !
Thanks
Hi Louis ! Briliant project and video as usual !
I was about to revamp my old XR2206 based function generator when you published this video, so perfect timing...
Do you still have a spare PCB liying around ? If so, how can I contact you to buy one ?
Kind regards,
Jose Luis.
What software was used to produce the PCB component layout graphic that is found in the PDF zipped with the schematic and parts list? Is it generated in KiCad?
Thank you Mr. Scully for another great project.
Hi,
I use KiCad for the schematic and PCB design. For the component layout I use the layout image from KiCad and then enhance it and add colour using Paint Shop Pro software.
Regards,
Louis
Hi, how are you? Is chanal freezing?
where is the part 2? please I hope you come back.
You could have grounded the one end of R15, omitting the capacitor, and fed your DC offset via R33 directly to the op amp's input. Also, I would have used 150 ohm resistors at the outputs of the schmitt trigger buffers, giving an effective impedance of 50 ohms, not 600...
As always, thanks for sharing your work. I've been working on a project with a AD9833 DDS signal generator module (which cost me £3.55 from eBay) being controlled by an Arduino Nano. Have you thought about using this instead of the XR-2206 ? That makes it easy to display the frequency because that's what you configure in the software. I just have to get the gain and offset issues sorted with my op amp (AD818).
Hi,
Thanks for your comments. I have purchased a few AD9833 chips to have a look at and may use one in a future project.
Regards,
Louis
... Can you make tesla meter for the number of design wind turbines .. I need it very much and I have a lot of waiting ...
It's been over a year now since Louis last posted on UA-cam. I hope everything is fine with himself and family. I do miss his project videos and haven't really done anything myself since this last video.