Hello!
I was wondering if it was possible to power an esp01s with batteries without any regulator? I just finished my project and I was powering the esp with a 3.3V input from an arduino Uno but I now want to power it with a more reliable power supply to let it alone where I want to use it.
I was thinking about rechargeable batteries but they are labeled as 1.2V with means that with 3 of these batteries I would be between 4.2V and 3V, is it OK for the esp01s?
I know the espo01S should be powered with 3.3V but maybe there's a margin where it's safe to use it even if I am not powering it with 3.3V?
If it's not possible don't hesitate to give me solutions I could use to have a constant 3.3V output from batteries giving 4.2V when they are charged and 3V when they need to be recharged.
Thank you for your help! I just bought a pack of 5!
To be honest I think it would have been complicated to find because even with the name I had difficulties to find them on internet! :')
I'm really happy to see a product that useful and cheap!
I searched for this but found nothing in the datasheet, that's why I came here to ask for help... But tbh I should have said that I searched for it before, that explains your cold response
Thank you! I took the wrong datasheet because the one I found just showed 3.3v without any min / max value.
How do you know to look for ESP8266EX instead of ESP01s? By looking with ESP01s I had this one:
