Hi everyone,
I have a question about the attached circuit:
(Sorry if it's unclear - I have very little experience in drawing circuit diagrams). What I have here is a 5V relay module powered by a battery, with an LDO providing the 5V input to the relay. When the signal (S) pin is low, the module and LED are off. When S is high, the module and LED are both on.
My question is this - when the module is on, after a while the LDO gets hot. Why is this? I figure I probably need to add another resistor somewhere, but where is the best place?
I have a question about the attached circuit:
![QOoPLfw.jpg](/forums/proxy.php?image=http%3A%2F%2Fi.imgur.com%2FQOoPLfw.jpg&hash=4ca9dfb2ca58c20ba33e7f643b07654d)
(Sorry if it's unclear - I have very little experience in drawing circuit diagrams). What I have here is a 5V relay module powered by a battery, with an LDO providing the 5V input to the relay. When the signal (S) pin is low, the module and LED are off. When S is high, the module and LED are both on.
My question is this - when the module is on, after a while the LDO gets hot. Why is this? I figure I probably need to add another resistor somewhere, but where is the best place?
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