Over the years, we’ve seen some modern microcontrollers turn out to be 5V-tolerant – now, RP2040 joins the crowd. Half a year ago, when we covered an ISA card based on a Pi Pico, [Eben Upton ...

Here is a nice hack you may find very useful if you have a cheaper bench power supply that ... After finding a download of the circuit diagram for his CSI3003X-5 supply he was able to reverse ...