Project | Philips PM2528 Digital Multimeter

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PCB layouts and risercard
12/03/2025 at 20:58 • 0 comments

Included in the 'deepdive' are PCB layouts, 3D-views and all details regarding the Risercard.
See the Deepdive in the GitHub repo.
The risercard is here.
Schematics N20/N21
11/30/2025 at 14:16 • 0 comments

Although for a long time already in the repository, the schematics for expansioncards N20 and N21 are now also included on the Deepdive-pages .
ADC Core (Expansioncard N21)
11/29/2025 at 17:09 • 0 comments

The functionality of the ADC Core (Expansioncard N21) has been added.

See ADC Core (Expansioncard N21).
ADC Control (Expansioncard N20)
11/19/2025 at 21:26 • 0 comments

The functionality of the ADC Control (Expansioncard N20) has been added.

See ADC Control (Expansioncard N20).
PM2528 - Dual Slope Integrating ADC
11/15/2025 at 14:47 • 0 comments

I've added an explanation of the ADC-method used in this device. It described the theory and shows screenshots of the measurement.
See ADC Deepdive.

Philips PM2528 Digital Multimeter