EEVblog > EEVblog Specific

EEVblog #1238 - Vion: The World's Worst Multimeter

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nctnico:

--- Quote from: amyk on August 20, 2019, 02:20:11 am ---I don't see a separate ADC, so it's probably using the 12-bit one in the nRF52832 itself. No obvious voltage reference either, might just be using the CPU VDD itself. Even I know that's a big no-no, and I don't do analog stuff much either.

--- End quote ---
You don't always need a voltage reference for doing precision stuff with an ADC in a microcontroller. The reference can also be a precision resistor.

thm_w:

--- Quote from: nctnico on August 23, 2019, 10:54:57 am ---You don't always need a voltage reference for doing precision stuff with an ADC in a microcontroller. The reference can also be a precision resistor.

--- End quote ---

Could you give an example please? I assume not multi-slope or similar.

YU7C:

--- Quote from: EEVblog on August 15, 2019, 03:37:22 am ---You think a $2 multimeter is bad?
A review of the Kickstarter & Indiegogo Vion bluetooth multimeter that promised the world.
Grab your popcorn for a master class in idiotic product design.



--- End quote ---

Sorry Dave, after this review I can't trust anymore on your expertise of products!

Until you start wearing a mustache!    :-DD

CChin254:
IC Identification of this Device:

AnalogueLove1867:
The very culture of the whole patreon, kickstarter communities combined with desktop OS loonix, hacker communities results in abominations like this.
The self-professed geniuses fighting against capitalism being nothing but untalented smooth brains scamming people out of their money.

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