Author Topic: Hacking the $18 Fnirsi DSO152 portable oscilloscope  (Read 990 times)

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Offline david.givenTopic starter

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Hacking the $18 Fnirsi DSO152 portable oscilloscope
« on: April 17, 2024, 09:15:39 am »
Warning: I made this.



As a 200kHz oscilloscope I don't think it's worth much, but as a CH32F103-based Blue pill development board in a nice case with a high-bandwidth screen, battery and charger and USB-C, it's potentially pretty useful.

I've since found out that Fnirsi make the DSO153, which is an upgraded model with signal generation support. This looks similar but has a different microcontroller and a more complex board and, obviously, an output analogue stage. I can't get a good picture of what the microcontroller is but it's likely to be an upgraded CH32F. It's another $10 more expensive, which takes it out of the sub-$20 sweet spot of being-cheap-enough-to-buy-as-a-component that the DSO152 is in, but if anyone does want to build a custom diagnostic tool it might still be worth a look...
 
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Online Atlan

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Re: Hacking the $18 Fnirsi DSO152 portable oscilloscope
« Reply #1 on: April 17, 2024, 07:09:30 pm »
One pin is enough for programming ? I program the CH32v003 via the SWDIO pin.
FNIRSI 1013D Always provide a picture or video with the problem where the parameters of the oscilloscope are visible, and a picture of the diagnostic screen with the values.
 

Offline david.givenTopic starter

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Re: Hacking the $18 Fnirsi DSO152 portable oscilloscope
« Reply #2 on: April 18, 2024, 09:07:24 am »
The V models are RISC-V based, though, and AFAICT they use a different debugging protocol; I've never used one. This one's an ARM and uses the standard two-wire SWD protocol (which is both a good thing, because it's standard, and a bad thing, because it uses two wires...).
 
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