Cheap and simple Solar Power for our small Projects (ESP32, ESP8266, Arduino)
Adding cheap and simple solar power to our small outdoor projects (e.g. ESP32, ESP8266, Arduino Pro Mini) removes the need to save energy or recharge batteries. Today we will enhance a simple 50 cents Li-Ion charger board to do exactly that.
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Links:
ESP32 WROOM : https://s.click.aliexpress.com/e/_AqoIE1
ESP32 PCB (different color) : https://s.click.aliexpress.com/e/_ABYXuD
Solar panel 6V : https://s.click.aliexpress.com/e/_9xQ3CD
Solar Panels 5 – 5.5V : https://s.click.aliexpress.com/e/_AfVbIz
Voltage Regulator HT7333 : https://s.click.aliexpress.com/e/_ADLhEl
Schottky Diodes (used 1N5819) : https://s.click.aliexpress.com/e/_AXOsKv
FQP27P06 : https://s.click.aliexpress.com/e/_A5T7oh
Explanation of Power Path: https://youtu.be/T70mBHeIOZA
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How high the temperature can go inside that "IKEA glass dome"? 🙂 Will the battery survive?
Simple and efficient approach. Thanks.
Maybe we should use this approach more often.
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vob.fyi
The MCP73871 is a complete solar charger with all the bells and whistles needed in your project Andreas… Adafruit has a board with it.
Excellent Andreas. It seems this came just in time for many of us thinking about solar powered projects. Greetings from sunny-ish UK
Very educational
Very nice !! Thanks !
Nice one! Thank you!
thank you i was wondering how to implement a solar panel
I thought of doing this, but I actually went with a 6v panel charging 4 NiMH batteries and a voltage regulator. it has worked for years! I was powering an ESP8266. You could also use the bluetooth on the ESP32 for an on time of less than a second, to lower the power drain too. Or, as I did, use a Lora transmitter (just for fun).
Andreas how many 18650 you need. Lol I think I have about 3000 or so.
An overkill solution can be the PS-BC12111 its a MPPT controler plus 3S 18650 BMS integrated
Very usefull indeed and nicely explained. Pure entertainment on Sunday mornings. What else….
Thanks….very..very interesting…Great Andreas !!! — 73 de Paolo IW3GPO Jn65Dk Venice Isl.
What about using super caps instead of battery? For high temp environments.
I just think about what you do today. wow!
Thanks for this great video. For all my sun powered project, I am using the mppt charger/balancer PS-BC12111 also including a bay for 3 x 18650…. Works flawless…. and cheap.
I think you'll get much more power out of the solar panel if you keep it outside the glass box.
Thanks Andreas, I’ve been struggling using a tp4056 for a solar project, reckon this is the solution! Perfect…
Can you make solar panel using monocrystalline cells for above project with flexibility?
Andreas what is the status of Super Power project?
Good video. Damn, it arrived a week after I had used an identical circuit with 2 Schottky diodes and missed the pro solution. Still, mine looks nicer! Next time…