Is there a way to use common/cheap components to put the 3.3V and 5V pins on an Arduino under load, in order to measure if they are giving a correct and stable voltage? Can I calculate a certain load to test?
Something keeps happening to my boards which causes the 3.3V pin to measure the correct voltage when idle, but to spike when put under load, which kills the component I was powering (XBees, which are previously tested working).