Activity Led
Posted: 01 Apr 2020, 17:16
Hello,
I built my RFlink and could not be more happy with it ! Well technically I could, by adding a small LED to the receiver (RXB6) or/and transmitter (STX882) data lines to know when the gateway is receiving/transmitting (for visual purposes more than anything).
My question is the following : can I simply add a LED with a resistor between GND and data in/out or should I use a transistor to make sure I don't draw more current than what the Arduino can support ?
Thank you !
I built my RFlink and could not be more happy with it ! Well technically I could, by adding a small LED to the receiver (RXB6) or/and transmitter (STX882) data lines to know when the gateway is receiving/transmitting (for visual purposes more than anything).
My question is the following : can I simply add a LED with a resistor between GND and data in/out or should I use a transistor to make sure I don't draw more current than what the Arduino can support ?
Thank you !