Questions tagged [solar]

Solar powered projects.

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12
votes
2answers
8k views

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 ...
7
votes
1answer
385 views

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 ...
2
votes
3answers
6k views

Can you charge and use a LiPo 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 LiPo battery (3cell, 11.1V, 1800mAh). I made a circuit so the arduino can check the ...
2
votes
2answers
4k views

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 ...
2
votes
1answer
103 views

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: ...
2
votes
0answers
924 views

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 ...
1
vote
3answers
4k views

Using an Arduino as a lithium ion charge controller

I have a trinket that I'm going to be powering off of a small lithium ion battery. I was also considering adding a small solar panel to the mix, and using the solar panel to charge the battery. I'm ...
1
vote
2answers
719 views

Best practices for really long distance sensor deployments

I'm noob to Arduino and electronics, but here is a problem from life which I need to solve for myself: We grow strawberries and early spring freezes can take most of the flowers from the plants. One ...
1
vote
2answers
99 views

Implementing Quasi-Perpetual Battery on Arduino

I am interested in seeing how much "uptime" I can achieve with my Arduino device/project. I am brand new to electronics/robotics, and so I wanted to bounce my idea off of this community first and see ...
1
vote
1answer
530 views

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 ...
1
vote
1answer
770 views

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…) ...
1
vote
1answer
53 views

Arduino Fio: Battery/Solar Powered Weather Station [closed]

I am trying to make a Solar Powered Weather Station. I'm using the Arduino Fio, with a BMP180 and a DHT22 as the sensors. There are sleep modes activated with the Fio and the Xbee. It seems like the ...
1
vote
1answer
645 views

Solar Power Inside a Car

I plan on making an Arduino project for reminding a parent to take a child from a car. In order to power the project I though on using a solar panel. Since I can't rely on having solar power all the ...
1
vote
1answer
124 views

What connects to Arduino Solar Shield?

I see there is an Arduino EnergyShield available, and am wondering what (specific) solar shield/panels/attachments can be used to power it. Thoughts? Bonus points if someone can explain how long the ...
1
vote
0answers
28 views

Arduino Fio and Solar Pairing

I'm creating a weather station and want the station to be completely power independent. I'm using the Arduino Fio (https://www.arduino.cc/en/pmwiki.php?n=Main/ArduinoBoardFio) and have estimated the ...
1
vote
0answers
70 views

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 ...
0
votes
1answer
326 views

Undervoltage from solar panels

So i'be been toying with the idea in my head of creating a solar powered weather station with an arduino, two 6V 2W solar panels in parallel, two 5V USB battery packs, and an adafruit module which ...
0
votes
2answers
396 views

Relay feedback control

I have a two-relay system set up to a DC motor. So, if I close one relay, the motor moves on one way and if I close the second relay (and open the first) the motor goes on the other direction. I ...
0
votes
2answers
683 views

MPPT using preassembled 'adjustable' buck/boost IC

This is more of a thought experiment, as I don't know if I'll have the time to work on it. Items: Arduino Homebrew MPPT controller from Instructables LM2596 Adjustable Buck Regulator Idea: Looking ...
0
votes
1answer
35 views

Solar powered ESP8266. WiFi module usage optimizations

Above all, I am quite new to the ESP8266 and micro controllers development as a whole. I am now working on a project which is quite simple for now. It basically looks like this: As you can see, I ...
0
votes
2answers
59 views

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 ...
0
votes
1answer
381 views

Can adjustable constant current/voltage source be made with Arduino?

I would like to create a 18650 battery automatic management system that can handle and restore used up cells using solar panels for power. To do that I need to create adjustable constant current ...
0
votes
1answer
56 views

Help me determine the power consumption/rating of the circuit below? [closed]

Please help me determine the circuit's power consumption from the battery and help me outline the steps to calculate?
0
votes
2answers
95 views

Arduino Voltage Divider

So am doing a project which involves the reading of voltage and current generated by Solar Panel. Now I learnt that Arduino cant Read Voltage directly above 5V. To read above that you need to add a ...
0
votes
1answer
559 views

Connecting ACS 712 30A to my Solar Panel with Arduino

I am trying to connect my Solar Panel (array of 2 x 265Wp 24v panels connected in series) to my Arduino UNO R3/Nano so that I can make a current/voltage measurement system that can be connected to the ...
0
votes
1answer
118 views

Arduino and solar panel

How can I charge 12V Li-ion or lead acid batteries using a solar panel? I also wish to interface the three, i.e. the Arduino, the solar panel and the battery, together so that the Arduino is basically ...
0
votes
1answer
281 views

Does Anemometer consumes power?

I planning to add an anemometer to my small solar weather station. I designed this system to run from a single 3.7v rechargeable battery and a solar panel so I have to calculate in more power drain. ...
0
votes
1answer
100 views

create a interruption-proof power

I need to create a interruption-proof power for a project of mine, very similar to the design of this link. My problem is that I need to adjust the current delivered of the solar panel (21V, 1.2A) to ...
0
votes
0answers
35 views

Arduino MKR 1400 Charging Circuit

I'm needing to build a temperature monitoring system that will be deployed to a remote location with no electricity. It will need to run on batteries and self charge via solar panel and send data via ...
-1
votes
1answer
1k views

Battery Solution for ESP8266 and HC-SR04

I'm working on a project that includes an ESP8266 (requires 3.3v input (250 mA peak)) and a HC-SR04 (requires 5v 20 mA peak). I'm making it battery/solar powered. I'm trying to keep costs down as ...