#Training Camp# Simple Digital Oscilloscope - Low-Cost Mini

A belated post →_→
As usual
, I made a separate board for acquisition and display, but I didn't have time to modify the program. I also wanted a compact design, but I'd already bought the parts!
So,
let's see who has a bunch of metal film resistors left over –
is it you?!
Further shrinking the size! (Super dense board, don't get the wrong idea!)
Retain the original metal film resistors!
One-button start with the core inserted on the back! Remove them when not in use! (Whispering: I want to put the screen on the outside of the casing too, so I can easily remove it!)
Make your STM32/GD32 no longer gather dust!
Very easy to solder (mostly component-based). But resistors are flying high!
Where is the component-based design that uses the core board to save space by mounting the resistors on the component chip's
signal input terminals?
Sorry, this is a toy, just a rough overview; it doesn't seem necessary to be so precise, right?
Cut it!
Simply keep two bent pin headers and use DuPont wires to bring them out.
The PWM output also uses bent pin headers
, and the overall pinout is the same as the original. The firmware can be used directly (a lazy person's dream).
I drew a 3D shell, but the step height was too low, and the screen was a bit too small.
It took me a long time to polish it, and I even had to take out the EC11's base. It was a lot of work. The shell has been modified, but I haven't verified it, so I won't post it here.
Let's take a look at the actual product.
Normally,
the shell looks like this
. After the modification, it looks like this. You can directly put the board inside.
If there's a chance later, I'll also take out the screen and plug it directly into the shell like the core board. I'll continue to work on it.