I've had a PCB manufactured, which is doing a whole bunch of things, all working flawlessly, using EEPROM, MAX232, Voltage Conversion etc etc.
Part of the circuit is supposed to use a 2N2222 as a switch for a low current 24v output, it is also supposed to have an indicator LED to show when this is active. I can't seem to light the LED and power the transistor at the same time (Both work fine independently) I've tried many combinations of resistor values/jumpers.
Can anyone suggest a way to solve the problem without changing the design such that new PCBs need to be manufactured? (Bodge wires totally fine though)
It's a 'standard' 3mm red LED
Output voltage from GPIO pin is 3V3
Output current from GPIO is around 50mA