Timeline for Relay with NodeMCU is not working
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
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| Sep 15, 2021 at 11:03 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 18, 2021 at 10:04 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 18, 2021 at 9:02 | history | bumped | Community Bot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 19, 2020 at 8:43 | answer | added | carl verbiest | timeline score: 1 | |
| Aug 8, 2020 at 4:09 | comment | added | Peter Feerick | @GaneshKumar Yes, a click sound from the relay, as it is a electro-mechanical switch, hence you should hear when it activates/deactivates. The yellow jumper to the side connects the VCC used to power the relays to the VCC used for the rest of the electronics on the module. The jumper is there because sometimes you don't have enough power, so you pull that jumper off, and use a second power source. If you put a GND or a VCC signal to one of the IN pins, that relay should either turn on or off. | |
| Aug 6, 2020 at 6:02 | comment | added | GK_ | But VCC is connected to VIN right ? | |
| Aug 5, 2020 at 13:49 | comment | added | GK_ | @peter-feerick : Click ? U mean a click sound will come when i connect IN4 to vcc on NodeMCU ? | |
| Aug 5, 2020 at 13:47 | comment | added | GK_ | @chris could you explain a bit more please. I'm a very beginner. i bought a 5v relay board, but i'm not sure what output nodeMCU provides, I hope it is same 5v ? | |
| Aug 5, 2020 at 9:44 | comment | added | Peter Feerick | If you attach and detach IN4 to VCC on the NodeMCU, does the relay click when you attach it? If it doesn't, and you still have VCC on the relay board connected to VIN(5V) on the NodeMCU, and GND on the relay board connected to GND on the NodeMCU, something is wrong with either your wiring or the board. Try another IN on the board and see if one is faulty. Those modules will work fine with 3v3 control signal coming from the NodeMCU due to the opto-isolator on the inputs of the relay board. If it does click, something is wrong with your code. | |
| Aug 5, 2020 at 9:15 | comment | added | chrisl | Can the relay module work with 3.3V logic signal? | |
| Aug 5, 2020 at 5:42 | comment | added | GK_ | No. That is the problem, When i trigger the power, the relay port is not closing and light bulb is not getting power | |
| Aug 4, 2020 at 15:14 | comment | added | SBF | Does the relay work when you connect IN4 to Vcc ? | |
| Aug 4, 2020 at 10:49 | comment | added | GK_ | On back of board it mentioned, "Node MCU V3" and in front top right corner , ver 0.1 | |
| Aug 4, 2020 at 9:55 | comment | added | Majenko | What version of the NodeMCU is that? | |
| Aug 4, 2020 at 7:08 | comment | added | GK_ | you mean the Main power Red wire right ?I removed the connection to take photo.. | |
| Aug 4, 2020 at 6:42 | comment | added | jsotola | the red wire is not connected to anything | |
| Aug 4, 2020 at 6:05 | review | First posts | |||
| Aug 4, 2020 at 16:32 | |||||
| Aug 4, 2020 at 6:03 | history | asked | GK_ | CC BY-SA 4.0 |