Hello all,
I’m planning to design an open hardware project focused on a precision measurement amplifier for DC/AC current, voltage, power, energy, and charge, with performance comparable to or even surpassing the Jetperch Joulescope.
Measurements will be done for up to 16V rails and about 3A currents for dual rails.
3rd channel will be used to monitor very precisely a single positive voltage up to 48V.
I've already selected the primary components and created a high-level hardware block design. My goal is to use high-quality parts to ensure durability (built to last and good performance).
The design will include options for measuring multiple rails, including a negative rail.
It will feature two input power source options, a USB input for programming, and data logging to a PC (with software to be developed later).
Also, three OLED displays will show data from the different channels, refreshing every 1-2 seconds.
For the initial version, I intend to develop the firmware myself. However, as I'm still a novice programmer, my choices for the MCU and ADCs are limited by the availability of compatible libraries and HAL.
What are your thoughts on my design?
Are there any aspects you would change or suggest improvements for?
What areas should I double-check or be cautious about?
Feel free to provide honest and direct/harsh feedback—I can handle it!
