1
\$\begingroup\$

I have this "MOMENTARY BUTTON TOGGLE AS ON/OFF USING 555 TIMER CIRCUIT". I want to turn on/turn off the circuit using single momentary button and also being able to turn off the circuit from one of the NodeMCU GPIO pin.

As of now, I can only toggle ON/OFF using the momentary button. The problem is I didn't know how can I reset the circuit when a GPIO pin from NodeMCU has changed state.

I badly needed help. Thank you very much in advanced. Your help is greatly appreciated.

enter image description here

\$\endgroup\$

1 Answer 1

Reset to default
1
\$\begingroup\$

You can force the output low with a GPIO by using a transistor to drive the /RESET input low.

Eg.

schematic

simulate this circuit – Schematic created using CircuitLab

\$\endgroup\$

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.