How Do MCUs Communicate with Different Voltage Levels?
Today, we will discuss the “level shifting” circuit below, which is quite enjoyable to understand. Circuit design can actually be very interesting. First, let’s talk about the purpose of this circuit: when two MCUs operate at different working voltages (for example, MCU1 operates at 5V and MCU2 operates at 3.3V), how can MCU1 and MCU2 … Read more