Como medir correntes de microampères (µA) com uma sonda de corrente de osciloscópio
Trying to characterize the sleep-mode current of a battery-powered IoT sensor, a wearable, or any ultra-low-power MCU design often runs into the same frustrating wall: an oscilloscope current probe works beautifully down at the milliamp and amp level, but the moment the current drops into single-digit microamperes, the waveform basically disappears into the noise floor. […]