I'm trying to turn on an LED when a signal is in LOW (0V) state. This is on a very small PCB. SO I used a very small single bit inverter.
On paper, this should work, but the LED is not turning on. If I bypass the inverter and simply drive the LED, it works (obviously on when signal is high instead of low). The Blue LED displaying power is working correctly.
Should this work, or am I supposed to use a transistor to turn on the LED?
On paper, this should work, but the LED is not turning on. If I bypass the inverter and simply drive the LED, it works (obviously on when signal is high instead of low). The Blue LED displaying power is working correctly.
Should this work, or am I supposed to use a transistor to turn on the LED?