Arduino Stack Exchange
Arduino Stack Exchange

Questions tagged [solar]

Solar powered projects.

Solar power approaches to powering an Arduino project. This may include power generation, buffering with batteries or smoothing capacitors, and interfacing with the board itself.

38 questions
15
votes
2 answers

Powering Arduino with Solar Panels

Clearly, an Arduino can be powered with solar panels. What is the most optimal configuration? Can you recharge and discharge at the same time? Is LiPO the best battery cache technology, or is there something more durable out there, for fielded…
0xF2
  • 542
  • 2
  • 8
  • 19
7
votes
1 answer

Day-night powered Arduino

What should I do to have an Arduino Pro Mini 5V (clone) powered by a 5V solar panel during the day and by battery during night which will be charged during the day by the solar panels. is there any guide out there? is it possible with the 5V…
Christos Mitsis
  • 354
  • 4
  • 15
7
votes
3 answers

Can you charge and use a Li-po battery at the same time?

I have a system that uses an Arduino Uno board as a "brain". All the elements in the system are powered by a single Li-po battery (3-cell, 11.1 V, 1800 mAh). I made a circuit so the Arduino can check the battery voltage and decide when it needs to…
Miguel
  • 118
  • 1
  • 2
  • 8
3
votes
0 answers

ESP32 Bluetooth Master does not connect

I want to connect an ESP32 to a SMA Sunny Boy SB5000-TL Solar convertor over Bluetooth, but I cannot establish a connection and I'm kind of stuck. I use the internal bluetooth module of the ESP32. What I've done: I started with this project:…
mvermand
  • 427
  • 1
  • 6
  • 15
2
votes
4 answers

Measuring solar power with an Arduino

I'm pulling together a project for my class where students build a solar panel structure/frame that moves with the sun to capture more power than if the panel were just flat on the roof. I can handle controlling the motors, but I wanted some help to…
user69897
  • 21
  • 2
2
votes
0 answers

ADC pin shutting off on its own under certain condition

A0 pin not working when full PV system in use I am using the DFRobot Leonardo with Xbee R3. I am using the A0 pin to read a 0-5V voltage from my voltage sensor, which samples and steps down 130VDC from a solar panel, in parallel to 0-5V for my…
Marcus Xing Koh
  • 21
  • 4
2
votes
0 answers

Sustainable power source for outdoor arduino weather station

I have been running a simple weather station composed of a Sparkfun Pro Micro (8kHz/3.3V), a DHT22 and a NRF24L01+ transceiver during the last couple of months, and I can tell you up here in Canada weather stations save lives... The board checks the…
retrography
  • 173
  • 5
2
votes
2 answers

How much numerical precision can the ESP8266 achieve?

Background: I am trying to port this solar tracker code by Gabriel Miller to run on the ESP8266. Now I'm not a particularly great coder, but I'd like to give it an honest try. As of recently, the ESP8266 can be natively programmed using the Arduino…
Boloar
  • 25
  • 1
  • 4
2
votes
1 answer

Choose the correct solar panel and battery for solar use

I am planning to build a weather station powered by solar power. I want to use an Arduino Nano because it's low power requirement. I want to connect some basic sensors to it (temperature, humidity…) as well as an anemometer, a wind vane and a rain…
qwertz
  • 251
  • 1
  • 4
  • 8
2
votes
1 answer

How to tell what components are compatible with Arduino Due?

I am interested in using the Arduino Due in an upcoming project, however I am worried that the other shields/components that I need will not be compatible with it, because, according to that link: The Due is compatible with all Arduino shields that…
smeeb
  • 509
  • 2
  • 10
  • 21
1
vote
1 answer

How to choose between Lithium-ion vs NiMH batteries to power Arduino on the go.

For my next project I'd like to use a battery pack to power my Arduino. I would also like to get a small solar panel and charging module to charge these batteries when possible (during the day). What is the right type of battery for this kind of…
Phil
  • 435
  • 2
  • 4
  • 12
1
vote
2 answers

Best way to add external power supply when main PSU is a solar charge controller?

I have a 12V 20A Solar Charge Controller (which is part of my existing Solar Panel System Setup connected to a 12V Sealed Lead Acid Battery) that I will use to power up some pumps with the help of relays and some sensors. And because its a solar…
princessbubbles15
  • 57
  • 5
1
vote
0 answers

Fried 2 MKR Wifi 1010 after plugging them to a solar panel

I fried 2 MKR Wifi 1010 after powering them using a solar panel. Here is the diagram: Both were working fine as long as I used the LiPo battery and/or my macbook (using USB) as power sources. They were correctly detected and I could upload…
Carl Levasseur
  • 119
  • 2
1
vote
1 answer

Why does my Wemos D1 Mini stops working while charging via solar?

I'm using an battery shield to recharge my battery. I want to use a solar panel, so I bought one (5V 240mA). I'm pretty sure, it won't recharge my battery fully, but that's not the point. I've assembled my board with my shield, soldered the solar…
Michael Hirschler
  • 133
  • 1
  • 7
1
vote
2 answers

Powering Peltier using solar panels

I am a beginner to electronics and trying to make a portable air conditioner using a Peltier cooling pad (12V). I am planning on using a solar panel to power the Peltier and looking forward to your expert opinion for below; - Is this…
Indee
  • 43
  • 9
1
2 3