neazoi
Advanced Member level 6
Hello, I need a little bit of help here
I would like to use the 16f876A or similar 28-pin micro to switch on/of some relays.
If the relays have a 5V coil, can I switch them on by directly connecting the microcontroller pin to the coil, or do I need a transistor switch?
I prefer driving the relay directly but I do not know how much current can the micro provide on each pin.
The relays coils datasheet is this one https://www.techno-star.biz/relays/ea2.pdf
Also what about latch type relays, which require current only when switching? Would I be able to directly drive their coils using the micro?
I would like to use the 16f876A or similar 28-pin micro to switch on/of some relays.
If the relays have a 5V coil, can I switch them on by directly connecting the microcontroller pin to the coil, or do I need a transistor switch?
I prefer driving the relay directly but I do not know how much current can the micro provide on each pin.
The relays coils datasheet is this one https://www.techno-star.biz/relays/ea2.pdf
Also what about latch type relays, which require current only when switching? Would I be able to directly drive their coils using the micro?