Timeline for powering Nodemcu using Vin
Current License: CC BY-SA 3.0
22 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 11, 2018 at 1:14 | comment | added | Pablo Suarez | Im struggling with the same problem, did you finally manage to fix it? Thanks, Pablo | |
| Feb 6, 2018 at 3:26 | answer | added | GERMAN | timeline score: 2 | |
| Feb 6, 2018 at 0:33 | comment | added | dandavis | fwiw, i have no trouble doing this with CP2102-based nodeMCUs (amica), but I've never gotten it to work with the larger CH340G lolin boards, which also don't give you 5v out when plugged into USB; useless. Your best bet for those is to get a cheap LDO module (or smps) and power it from any of the 3.3v pins. | |
| Feb 4, 2018 at 17:31 | comment | added | bukke hari prasad | Yeah sir. However, if i follow the connections as outlined in the blog, i think it must work right? But it doesnt work for me? Is there something that i am missing here? | |
| Feb 4, 2018 at 17:20 | comment | added | Juraj♦ | there are different manufacturers | |
| Feb 4, 2018 at 17:14 | comment | added | bukke hari prasad | I referred it long ago. And followed instructions from there only. | |
| Feb 4, 2018 at 17:09 | comment | added | Juraj♦ | why you simple do not google it henrysbench.capnfatz.com/henrys-bench/… | |
| Feb 4, 2018 at 16:16 | comment | added | bukke hari prasad | Yeah, i made the connection as you said sir. 5v to Vin and ground to GND. | |
| Feb 4, 2018 at 16:14 | comment | added | Majenko | So... you connected the 5V power supply's positive to VIN. Did you connect the power supply's ground to GND? | |
| Feb 4, 2018 at 16:14 | comment | added | Majenko | Ok, that makes more sense - since the earlier boards don't have a VIN pin, they have a 5V pin. | |
| Feb 4, 2018 at 16:12 | comment | added | bukke hari prasad | Im sorry. Its V2. I did a google search and found that V2 was called second generation at this blog frightanic.com/iot/…. | |
| Feb 4, 2018 at 16:10 | comment | added | Majenko | What does that mean? NodeMCUs have a version number, not a "generation". What version number is printed on your NodeMCU? | |
| Feb 4, 2018 at 16:09 | comment | added | bukke hari prasad | second generation. | |
| Feb 4, 2018 at 16:08 | comment | added | Majenko | Which NodeMCU version? | |
| Feb 4, 2018 at 16:04 | comment | added | bukke hari prasad | I took a USB charger - 5v 1A and connected its positive to Vin of NodeMCU. I am not using any arduino here. | |
| Feb 4, 2018 at 16:02 | comment | added | Majenko | Did you connect the 5v to the Arduino barrel jack or the USB? | |
| Feb 4, 2018 at 16:00 | comment | added | bukke hari prasad | The 5v power supply is 1A. So with that too, the NodeMCU doesnt work. Am I missing something here? Please help me. | |
| Feb 4, 2018 at 15:57 | comment | added | Majenko | Then you're lucky that a 9V battery is one of the weakest batteries around, otherwise it would have killed the NodeMCU. It's the current you need to consider. The voltage is 5V and must always be 5V. If it seems "too weak", increasing the voltage is a very very bad idea. | |
| Feb 4, 2018 at 15:56 | comment | added | bukke hari prasad | No. the NodeMCU works on USB power still. Its not dead. | |
| Feb 4, 2018 at 15:55 | history | edited | bukke hari prasad | CC BY-SA 3.0 |
edited title
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| Feb 4, 2018 at 15:54 | comment | added | Majenko | 9V -> Arduino -> VIN -> NodeMCU 5V = dead NodeMCU. | |
| Feb 4, 2018 at 15:53 | history | asked | bukke hari prasad | CC BY-SA 3.0 |