$10 O-Scope revisited

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ThunderOwl
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Re: $10 O-Scope revisited

Post by ThunderOwl » Sun Mar 26, 2017 2:56 pm

Update for that simple BT/USB "BluePill" based scope (entry S-14 in my list of DIY scopes). Almost finished version by me:
http://bildites.lv/a/xfjbphbf#33yk2zed
Project forum here:
http://forum.easyelectronics.ru/viewtop ... 4&start=75
In every man's childhood, first 40 years are the hardest

mausi_mick
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Re: $10 O-Scope revisited

Post by mausi_mick » Mon Mar 27, 2017 3:17 am

I have now activated channel2 with the second MCP6S91 ...
On the screen ( bottom right) is now a second touch-field to activate the amplifier.
The signals are from external generators.

The video is on Youtube:

https://youtu.be/8uKkUnRKve0

mausi_mick
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Re: $10 O-Scope revisited

Post by mausi_mick » Mon Mar 27, 2017 5:34 am

ThunderOwl,

is it somethimng like this:


https://www.crowdsupply.com/aeroscope-l ... -112434141

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ThunderOwl
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Re: $10 O-Scope revisited

Post by ThunderOwl » Mon Mar 27, 2017 6:21 am

mausi_mick, check my pictures gallery, it is simply STM32 BluePill with MCP6S21 in a box ;-)
In every man's childhood, first 40 years are the hardest

mausi_mick
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Re: $10 O-Scope revisited

Post by mausi_mick » Mon Mar 27, 2017 8:35 am

ThunderOwl,

what will You make with the HC05/HC06 ?

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ThunderOwl
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Re: $10 O-Scope revisited

Post by ThunderOwl » Mon Mar 27, 2017 9:59 am

mausi_mick wrote: what will You make with the HC05/HC06 ?
Well, project S-14 (my list reference) initially was Bluetooth only, with HC-06 module. USB connection and Windows host software was actually added at later time, and now is more capable than Android app (which is very rudimentary). I added some pictures, this "BT-USB-O-Scope" checking signal from another project, "Murzik-2" by Fusion (still have to add this to my list).
I added 3 pictures here:
http://bildites.lv/a/xfjbphbf#2krddrqc
http://bildites.lv/users/ThunderJuris/albums
Project "BT-USB-STM-O-Scope":
http://forum.easyelectronics.ru/viewtop ... 17&t=27404 )page 2 nad later)
Project "Murzik-2" (STM32F446 + AD9283):
http://radiokot.ru/forum/viewtopic.php? ... &start=480 (page 25 and later)
Attachments
BT-Sope_Murzik-2_003.jpg
BT-O-Scope & Murzik-2
BT-Sope_Murzik-2_003.jpg (174.53 KiB) Viewed 459 times
In every man's childhood, first 40 years are the hardest

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ThunderOwl
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Re: $10 O-Scope revisited

Post by ThunderOwl » Mon Mar 27, 2017 11:06 am

mausi_mick wrote: what will You make with the HC05/HC06 ?
Well, project S-14 (my list reference) initially was Bluetooth only, with HC-06 module. USB connection and Windows host software was actually added at later time, and now is more capable than Android app (which is very rudimentary). I added some pictures, this "BT-USB-O-Scope" checking signal from another project, "Murzik-2" by Fusion (still have to add this to my list).
It is 100kHz. I think so... :)
I added 3 pictures here (EDIT: 5 pictures added, 2 with LED light mounted):
http://bildites.lv/a/xfjbphbf#2krddrqc
http://bildites.lv/users/ThunderJuris/albums
Project "BT-USB-STM-O-Scope":
http://forum.easyelectronics.ru/viewtop ... 17&t=27404 )page 2 nad later)
Project "Murzik-2" (STM32F446 + AD9283):
http://radiokot.ru/forum/viewtopic.php? ... &start=480 (page 25 and later)[/quote]
In every man's childhood, first 40 years are the hardest

mausi_mick
Posts: 129
Joined: Fri Aug 12, 2016 1:40 pm

Re: $10 O-Scope revisited

Post by mausi_mick » Mon Mar 27, 2017 5:55 pm

ThunderBowl, very nice pictures !

Do You transfer the scope-data via bluetooth to android to display it there ?
It's quick enough ?

something other, you asked for AD9850/51 connected with SPI. I have tested it , but not with success. It was possible to generate a frequency and I can see it on the screen, but if I try to change the frequency their is chaos . Sometimes appears a very high frequency and if I try to set to 100 Hz, he gives a very low frequency back. I tested some diffent software (from Arduino), but I think it's difficult to transfer the frequency order.

Perhaps other have more success, but I stopped it.
Now I try to integrate the two amplifiers in the scope:
DLO138-SPI_Display_Preamp_2.JPG
DLO138-SPI_Display_Preamp_2.JPG (57.99 KiB) Viewed 434 times

mausi_mick
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Re: $10 O-Scope revisited

Post by mausi_mick » Thu Mar 30, 2017 5:42 pm

ThunderOwl,

I had problems with SPI for ADS9851, but now I need only three Pins , I put Pin AD_RST to ground.
Now I have installed the two preamps:
DLO138-SPI-Display_front_plate.JPG
DLO138-SPI-Display_front_plate.JPG (33.96 KiB) Viewed 381 times
The switches with red plastic is for AC/DC, among them the switches for the reducer ( similar DSO150 input-stage).

The sockets left under the display is output from ADS9851.

mausi_mick
Posts: 129
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Re: $10 O-Scope revisited

Post by mausi_mick » Sun Apr 02, 2017 3:20 pm

I have now built in a sinus to squarewave-former with 50% duty cycle.
The former is realized with a smitt-trigger and a divider trough two ( HC7474). Therefore the input-frequency is multiplied by two to
eliminate the divider.
DLO138-SPI-Display_SinusSquarewave.JPG
DLO138-SPI-Display_SinusSquarewave.JPG (42.74 KiB) Viewed 276 times
to save on a new touch-input area on edge I have integrate the select function between SINUS / SQUARE(wave) in the Frequency-menu
(see Video).
https://youtu.be/z_VZjN_pj-o

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