The ATMegaZero ESP32-S2 is an ESP32 development board that looks just like the Raspberry Pi Zero, which means the shape and 40-pin GPIO interface are the same as the Pi Zero, and the same accessories ...
As shown in the figure, I simulated an IV conversion circuit using multisim. It should have Vo=-I*R1, but the running result is not like this. Using a probe to observe, the + stage in the circuit is g...