hey dude, You've got a good thing going on. I hope you keep it up, and hopefully some gear manufacturers get onboard and send some gear to review. You've got to love pulling things apart as soon as you get them. I'm enjoying your series, and look forward to the next installment
I added "The Art of Electronics" to my Amazon wish list! Loved watching this video, you seem to have a real passion for what you do :-D Do you teach? You should do. LOVE that watch, it's truly amazing! Will you be producing any more kits? I seriously want one! BTW I'm with you on the no-case-equals-more-geekiness! A lot of my projects have no cases, choosing instead to build up a the project in physical layers so you can see all the parts inside :-D
Dave; do you have any advice for calculating the required CLC filter network between a micro and an SMD antenna? I'm running at 2.4GHz and I've found the correct trace width to yield a 50 ohm transmission line.
As I was watching this it occurred to me that he might have been able to use the front panel to line up the surface mount buttons. Set the buttons in solder paste, and then attach the front panel. you just have to keep it level and get it into your kitchen oven. Use the oven reflow technique and voila, the buttons are soldered in place, aligned properly. It just takes some more time. I've never tried that of course, but I'd be curious to see if it would work.
Been waiting for a long time to see if you would drop the PCB files on us to go with the source code, BOM and all the other info you have over at calcwatch.com. Id live to build up one of these in 2018. Every few years I scan through your message board to see if there are any new developments with your mk2
When I was a kid I loved calculator watches so much, and was really getting a strong interest in math, I'd have given my left nut to get a scientific calculator watch back then. These days I wouldn't have any practical use of one, but when I was younger that would have been one of the coolest things I could get.
Come on Dave, no software contrast regulation for the lcd? Not even a trim pot in the bias line? Looks great at 1.5v per cell, goes down hill from there. You see this on rubbish little lcd products all the time.
Who would want a watch so big it eats two cr2032 cells at a time, all held together with super glue. 2) ever heard if zebra connectors? I for one, am not looking forward to replaceing those cr2032 cells just to play with my calc watch. Just a curiousity really. what a horrible piece of engineering.
Only 1500 of these to go, I will absorb all of Daves knowledge
Yes, the first release of code was all mine. But then I released it as open source and others have taken over. It now even plays chess!
hey dude, You've got a good thing going on. I hope you keep it up, and hopefully some gear manufacturers get onboard and send some gear to review. You've got to love pulling things apart as soon as you get them.
I'm enjoying your series, and look forward to the next installment
He did in fact keep it up.
I added "The Art of Electronics" to my Amazon wish list!
Loved watching this video, you seem to have a real passion for what you do :-D Do you teach? You should do.
LOVE that watch, it's truly amazing! Will you be producing any more kits? I seriously want one!
BTW I'm with you on the no-case-equals-more-geekiness! A lot of my projects have no cases, choosing instead to build up a the project in physical layers so you can see all the parts inside :-D
Very helpful. ..
I would SO buy from you , Dave .
- From another Dave .
Dave; do you have any advice for calculating the required CLC filter network between a micro and an SMD antenna? I'm running at 2.4GHz and I've found the correct trace width to yield a 50 ohm transmission line.
As I was watching this it occurred to me that he might have been able to use the front panel to line up the surface mount buttons. Set the buttons in solder paste, and then attach the front panel. you just have to keep it level and get it into your kitchen oven. Use the oven reflow technique and voila, the buttons are soldered in place, aligned properly. It just takes some more time. I've never tried that of course, but I'd be curious to see if it would work.
is the pcb custom made at home? or did you have someone do that, and how much did it cost? :)
Can I buy one of these as a DIY kit!?!?!?!?!?!?
what's that in min 5:54 . watchband attachment id? what's that>?
aren't you going to program the lcd to show the time and work as a calculater?
@MalaTemporaCurrunt On the uWatch web site.
What about waterproofing this design?
is this lab at your home btw?
Is the watch FCC approved? xD
@mantaz111 That's not quite as easy.
Been waiting for a long time to see if you would drop the PCB files on us to go with the source code, BOM and all the other info you have over at calcwatch.com. Id live to build up one of these in 2018. Every few years I scan through your message board to see if there are any new developments with your mk2
When I was a kid I loved calculator watches so much, and was really getting a strong interest in math, I'd have given my left nut to get a scientific calculator watch back then. These days I wouldn't have any practical use of one, but when I was younger that would have been one of the coolest things I could get.
Lots of hot glue.
Come on Dave, no software contrast regulation for the lcd? Not even a trim pot in the bias line? Looks great at 1.5v per cell, goes down hill from there. You see this on rubbish little lcd products all the time.
27996th!
Who would want a watch so big it eats two cr2032 cells at a time, all held together with super glue. 2) ever heard if zebra connectors? I for one, am not looking forward to replaceing those cr2032 cells just to play with my calc watch. Just a curiousity really. what a horrible piece of engineering.
What have you designed and made recently ?