$10 O-Scope revisited

What are you developing?
User avatar
rexnanet
Posts: 207
Joined: Wed Mar 16, 2016 10:34 am

Re: $10 O-Scope revisited

Post by rexnanet » Thu Aug 31, 2017 1:44 pm

RogerClark wrote:
Wed Aug 30, 2017 9:12 pm
rexnanet wrote:
Wed Aug 30, 2017 12:45 pm

Is there support for F303'duino?
Use STMs Core or STM32GENERIC
Thanks!
I'll give it a try when I solder the F303 on the BluePill board.

User avatar
ThunderOwl
Posts: 135
Joined: Fri Oct 28, 2016 6:04 am
Location: Riga, Latvia
Contact:

Re: $10 O-Scope revisited

Post by ThunderOwl » Thu Aug 31, 2017 2:24 pm

rexnanet wrote:
Thu Aug 31, 2017 1:44 pm
RogerClark wrote:
Wed Aug 30, 2017 9:12 pm
rexnanet wrote:
Wed Aug 30, 2017 12:45 pm

Is there support for F303'duino?
Use STMs Core or STM32GENERIC
Thanks!
I'll give it a try when I solder the F303 on the BluePill board.
My best wishes for such experiments. I have two BluePils "modded" with F303, one with separated digital and analog power pins, one left as it was, connected. Both free right now for tests of anything interesting.
In every man's childhood, first 40 years are the hardest

User avatar
rexnanet
Posts: 207
Joined: Wed Mar 16, 2016 10:34 am

Re: $10 O-Scope revisited

Post by rexnanet » Thu Aug 31, 2017 4:41 pm

Thanks ThunderOwl!

Do you have a video of the F303 oscilloscope version from that forum ("Murzik")?

User avatar
ThunderOwl
Posts: 135
Joined: Fri Oct 28, 2016 6:04 am
Location: Riga, Latvia
Contact:

Re: $10 O-Scope revisited

Post by ThunderOwl » Thu Aug 31, 2017 8:21 pm

rexnanet wrote:
Thu Aug 31, 2017 4:41 pm
Thanks ThunderOwl!

Do you have a video of the F303 oscilloscope version from that forum ("Murzik")?
I don't have a video of it right now, but I can make a video or some screenshots with certain frequencies displayed some next days.
Here are screens of my weird construction, but there are no pics that would show performance:
http://bildites.lv/a/sfkqpxdx#tjbrytfu
In every man's childhood, first 40 years are the hardest

User avatar
rexnanet
Posts: 207
Joined: Wed Mar 16, 2016 10:34 am

Re: $10 O-Scope revisited

Post by rexnanet » Fri Sep 01, 2017 8:59 am

ThunderOwl wrote:
Thu Aug 31, 2017 8:21 pm
I don't have a video of it right now, but I can make a video or some screenshots with certain frequencies displayed some next days.
Here are screens of my weird construction, but there are no pics that would show performance:
http://bildites.lv/a/sfkqpxdx#tjbrytfu
A video of it working would be great! It's better to see the update rate and the overall graphical look and UI responsiveness.

From the photos it looks good. You went with a LQFP adapter instead of the BluePill board, why was that? Not to waste a board?
The TFT case looks great. It includes that 5V booster and the Battery from the other photos, right?

What is that 8 pin DIP chip? An input op-amp? Or is it that AC/DC switch?

User avatar
ThunderOwl
Posts: 135
Joined: Fri Oct 28, 2016 6:04 am
Location: Riga, Latvia
Contact:

Re: $10 O-Scope revisited

Post by ThunderOwl » Fri Sep 01, 2017 9:08 am

Chip is AC/DC switch. About OpAmps, this simple variant uses opamp that is built in F303.
Adapter board - I think I had it previous of any chinese boards that I acquired later.
In every man's childhood, first 40 years are the hardest

User avatar
ThunderOwl
Posts: 135
Joined: Fri Oct 28, 2016 6:04 am
Location: Riga, Latvia
Contact:

Re: $10 O-Scope revisited

Post by ThunderOwl » Fri Sep 01, 2017 9:23 am

Did some quick shots at 3 frequencies, "Murzik-1" (by user named Fusion), F303:
Attachments
Murzik1_03.jpg
Murzik1_03.jpg (113.74 KiB) Viewed 715 times
Murzik1_02.jpg
Murzik1_02.jpg (143.9 KiB) Viewed 715 times
Murzik1_01.jpg
Murzik1_01.jpg (149.22 KiB) Viewed 715 times
In every man's childhood, first 40 years are the hardest

User avatar
ThunderOwl
Posts: 135
Joined: Fri Oct 28, 2016 6:04 am
Location: Riga, Latvia
Contact:

Re: $10 O-Scope revisited

Post by ThunderOwl » Fri Sep 01, 2017 9:23 am

continued...
Attachments
Murzik1_06.jpg
Murzik1_06.jpg (126.54 KiB) Viewed 715 times
Murzik1_05.jpg
Murzik1_05.jpg (116.49 KiB) Viewed 715 times
Murzik1_04.jpg
Murzik1_04.jpg (139.97 KiB) Viewed 715 times
In every man's childhood, first 40 years are the hardest

User avatar
ThunderOwl
Posts: 135
Joined: Fri Oct 28, 2016 6:04 am
Location: Riga, Latvia
Contact:

Re: $10 O-Scope revisited

Post by ThunderOwl » Fri Sep 01, 2017 9:29 am

P.S.: about STM32 chip and adapterboard - there is low pin count chip used, 32 pin. "Normal" chips are 48 pins. But this one was enough for such version. There are mods now, with input gain selectors, etc too.
In every man's childhood, first 40 years are the hardest

User avatar
rexnanet
Posts: 207
Joined: Wed Mar 16, 2016 10:34 am

Re: $10 O-Scope revisited

Post by rexnanet » Fri Sep 01, 2017 10:18 am

Thanks :)
Maybe we should migrate this talk to the other post... :)

Post Reply