ESP8266 Voltage Regulator (LiPo and Li-ion Batteries)
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- เผยแพร่เมื่อ 29 พ.ย. 2017
- For complete written version of this video with schematics and parts, visit ► randomnerdtutorials.com/esp82...
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One of the best videos I have seen explaining how to use batteries to power ESP boards, great work!
nice tutorial. short and sweet but contains all the necessary info. thanks!
Nice vid, informative. Thank you!
Thank you for this video. Your explanations are very clear and you gave all the details someone new to working with electronics could have hoped for !
You're welcome! Thanks for watching
For complete written version of this video with schematics and parts, visit ► randomnerdtutorials.com/esp8266-voltage-regulator-lipo-and-li-ion-batteries/
Amigo eres un verdadero genio!!!! gracias por todos tus aportes de proyectos!!!genio!!!!!!!!
Great video. Wish everyone would do it like that
A close read of the MCP1700 datasheet reveals that it recommends a 1uF ceramic capacitor on both input and output - this example circuit has none on input and only 0.1uF ceramic on output (in addition to the large electrolytic, which should be fine). 1uF ceramic caps (or bigger) are not cheap, and from my searching two of them will easily cost more than the MCP1700. Another promising LDO I found is the NJU7223F, which is up to 500mA, and 30uA quiescent. It only recommends 0.1uF caps, which are cheap and I have a lot of. But, that LDO is not a common one.
Just spent a while pricing stuff on ebay:
3.3v >200mA LDO: cheapest i found was the HT7333 for 10cents each, or 5cents if SMD is ok.
330uF Electrolytic cap: 2cents each.
100nF Ceramic cap:
2:22 could we use MOSFET insted of bjt (Bipolar junction transistor).
because MOSFET must have low output cut off voitage??
What is maxmum V and Current does not damage bord ?
Let say i want use 5V and 6A is that effect or damage bord ?
hey how do you determine the capacitor sizes?
It would be great if you showed what happens when the battery voltage is
why do you use ceramic capacitor here? Do you have to use it? Or can you just use a electrolytic one and be fine?
@@ijustwanttogosailing8248 Look up YTA
@@youtubecopyrights for what does yta stand for?
Nice explanation thanks, for whom is interested have a look at the LP5907 that one has a enable pin with 0.2uA Iqs and very good voltage characteristics one below the 3.3 outout voltage./
If the battery voltage is 3.3 volts, what will be the output voltage?
i'm new in this world, theorically, why this 2 capacitors and not only one of whatever other capacity? if your task is to avoid the voltage peaks
Can the ESP8266 measure voltage of the battery that is powering it?
ESP.getVCC() . Search on the internet how to use it.
@@CoCoRiCoSC2 That's a cool feature, thank you for pointing it out.
Ok nice video, but i not understand if i can use this circuit for power supply my nodemcu esp8266 v. 3.
You can use the exact same circuit, but power the ESP NodeMCU directly in the 3.3V pin...
@@RuiSantosdotme thanks a lot.
@@RuiSantosdotmelate response but bad suggestions....i fried my AMS1117 Voltage Regulator of my NodeMCU
Great video but there's no need for such big capacitor. 330uF or even less is more than enough. The rule is 1000uF/1A. Using a smaller cap would decrease even more the size ;)
Yes, It was definitely overkill
Hello, i have 470uf 10v cap and 680uf 10v cap, can i use one of them instead of buy another 330uf/1000uf? Thanks
What happens when battery voltage fall below 3.3v
The ESP8266 should keep working at these operating voltages range: 3.0~3.6V
Resistor, Capasitors and Ships?😂😂😂😂😂
Just joking
Rui preciso mesmo desse condensador enorme? Ha alternativa?
Podes utilizar um mais pequeno, eu não tenho os cálculos aqui e as tentativas que me fizeram chegar a esse número.
ams1117 not good ?
No. It consumes a lot of current.
Sir,
but you shown us lion battery
why that pushbutton?
4:12 shows it is to set Reset to high
GANDA PORTUGAL CARALHO!
I think easier will be take stuff from powerbank and connect to esp8266 by usb