Questions tagged [battery]
In electricity, a battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy.
170
questions
1
vote
2answers
57 views
Using Relays to Power off then Cut power to Pi Zero
I have a raspberry pi zero that I am running off a battery for remote logging reasons.
There is a low battery shut off module I have connected to the battery in case the battery gets below a certain ...
1
vote
1answer
67 views
24/7 Solar panel + battery to power a Raspberry Pi Zero W [closed]
I need to create a system to have a remote bees monitoring.
In this place I haven't the electrical energy. Basically I need to monitor some sensors (5 temperature and humidity sensors).
I'm not expert ...
0
votes
1answer
21 views
battery for B+ model?
Could one of these rechargeable battery packs work for a rasp pi B+? Klientool and BestBuy are some options I can packup locally, plus I like Klientools. Any tips greatly appreciated...
Klientools
...
0
votes
1answer
26 views
Can AA batteries have voltage or current spikes?
I'm a noob in raspberry pi and in engineering in general. I had an idea for a project but it requires it to be somewhat portable so I need to power the raspberry somehow. I read this article Where it ...
0
votes
0answers
46 views
Is there a reason my GPIO pins have a low voltage?
I'm currently using a Raspberry Pi Zero W running Pi OS Lite. I'm using the following external hats with it:
PiSugar 2 Battery 1000mAh link
Serial PiZero addon link
PiOLED link
Here's my situation: ...
0
votes
2answers
48 views
Is there any battery for Rpi that can be charged and used at the same time? [closed]
I'm making a security camera using Raspberry Pi 3B+ . I want suitable battery to power my rpi. Is there any suitable battery pack that can power Rpi at the same time recharge the battery? I also found ...
0
votes
1answer
94 views
Shutdown on low power with INA219 UPS HAT
I have a Uninterruptible Power Supply HAT For Raspberry Pi (bought here https://www.cytron.io/p-uninterruptible-power-supply-hat-for-raspberry-pi) and there is an INA219 chip on it.
I'm using a python ...
0
votes
0answers
29 views
Audio Amp + battery = shutdown on high volume
I'm using the Raspberry Pi Zero W with a DAC, the MiniAmp from HifiBerry (2x3W) , and a pair of speaker 4Ohms 3W for making a connected speaker device.
Everything is working great until, in order to ...
0
votes
1answer
69 views
Raspberry pi 0w is making a humming/buzzing sound?
I have a problem with my raspberry pi 0w. The SOC is making a buzzing sound when connected to a li-po.
The li-po is 3.7 volts and 1200mah and it is connected to an Adafruit 500c (https://www.adafruit....
0
votes
1answer
52 views
Keep running Pi while charging batteries [closed]
I would like to build a simple automatic irrigation system with Pi zero, the thing is that I don't have access to electricity outside.
I thought to connect 5v solar panel + 3\4 chargeable batteries.
...
0
votes
0answers
19 views
Migrating From RPI 3A+ to CM3+ Lite
I'm migrating from the rpi-3a+ to a cm3+ lite because the product I'm making will be very small and the cm3+ is more for industrial purposes anyway. Ive decided for my case I will make a custom pcb ...
-1
votes
4answers
89 views
Battery Solution for Raspberry Pi 3b
I am working on a project for which I need to attach the four raspberry pi boards on the ceiling of the room (one at each corner).
The script that will run constantly scans the BD Address and the RSSI ...
4
votes
4answers
529 views
Voltage monitoring of battery pack (i.e. before voltage regulation)
I am looking to use four 18650 batteries and a step-down DC-DC converter to power my Raspberry Pi 4. The negative terminal of the DC-DC converter is common for the input and the output.
I would like a ...
0
votes
2answers
96 views
powering a pi 3B using two 18650 batteries in series. what circuits do I need? [closed]
I have an raspberry pi 3B I want to use as the brains for a robot car. In my initial setup I used a power bank for the Pi and a powered the motors using a seperate pack of two 18650 batteries in ...
2
votes
1answer
73 views
RPi3 power consumption based on CLI or Desktop GUI. Which consumes more power? CLI vs Desktop GUI
I am planning to do a project where RPi3 will b run by a powerbank. But I am bit confused with power consumption and in my project I am not running any heavy load expect camera interface. In my case ...
1
vote
0answers
51 views
Isolate Raspberry pi from power supply on shut down
Ok Team I need to know if this circuit will work or if there is a better way.
Use Case:
I have a piece of machinery that is controlled via a Raspberry pi zero W. It just controls a relay board to ...
2
votes
1answer
248 views
How can Rpi I2C read a Coulomb Counter, up to 18V, 10A?
I"m building an autonomous boat with a solar panel. The heart of the boat is a Raspi zero which contains a small program doing the navigation. I've got a 3S li-ion battery of which I'm already ...
0
votes
2answers
612 views
How to add Capacitors to Raspberry Pi
My goal is to add capacitors to the Raspberry Pi power-supply.
Currently I have my raspberry Pi plugged straight into a portable 5v battery, this works fine.
However, I want to be able to swap from ...
1
vote
1answer
130 views
Running Pi4 and touchscreen off battery
I am building a portable RPI 4 and touchscreen and am hoping to be able to run it off a battery or external power, through one external port (ie, on outside of enclosure, one microusb port shows) ...
4
votes
2answers
1k views
Power Pi4 with USB-C Power Bank
Can a USB-C Power Bank be used to power a Pi 4 for off-grid or mobile uses where the Pi cannot be tethered to either a mains electric socket or a POE switch?
1
vote
1answer
899 views
I would like to add a battery to my Raspberry Pi 4. Can i do this by soldering to tp7, tp12, or tp1 on the underside of the board?
I would like to add a battery to my Raspberry Pi 4. I am building a tablet that can be turned on and off by a switch that brings power from the usb port from a power bank to power the pi, can i tie ...
4
votes
1answer
197 views
Power off Raspberry Pi if charger of powerbank is connected and turn back on if disconnected
I have a (maybe trivial) problem.
I want to power a Raspberry Pi (more specific a SteroPi) with a power bank. The power bank has the feature, that its output is always on. So even if I plug in a ...
1
vote
1answer
85 views
Raspberry pi 3 keeps rebooting
I am trying to make a simple robotic car with my raspberry pi. The problem is that when it reaches the white load up screen it immediately reboots itself over and over again.
My raspberry pi is ...
1
vote
1answer
60 views
Small, Rechargeable LiPo and RPi 4B
I've started a new, more specific thread, here.
I'm looking for a way to power my Pi 4B inside a 3d-printed laptop project (nothing has actually been started yet), and it would be great to hear what ...
0
votes
1answer
85 views
AlphaBot, which type of 18650
The AlphaBot uses batteries 18650.
But does anyone know if it should be the ones with the button top or the flat top?
Heres a button top:
https://www.amazon.com/AllForBest-Protected-Panasonic-18650-...
0
votes
1answer
62 views
How to make more efficient reading of GPIO
My (python) program (on Raspberry Pi zero W) turns on/off a GPIO pin (connected to a relay module) depending on the RSSI signal of my phone (connected via bluetooth) and the status of one more GPIO ...
1
vote
1answer
42 views
How to correctly implement voltage and current monitoring from a solar panel?
Good day
Given:
Solar panel (with a maximum output current of 2100 mA and an output power of 25 W; Output voltage - 5 V). These parameters are stated on the seller’s website and may differ from ...
1
vote
2answers
396 views
Rpi GPIO Push Button Circuit Grounding Problem
I have a little project where I power my Raspberry Pi Zero using a 12v Battery, via a small 12v to 5v regulator I bought from eBay.
I am going to connect a push button to the Pi as in the following ...
2
votes
2answers
889 views
how do I automatically power off the raspberry pi and cut power every night and then power it back on each day?
Background
I'm a student working on research project to develop a remote wireless sensor network of data loggers. Each data logger (aka node) is going to be retrofitted to a bird feeder that reads ...
1
vote
2answers
173 views
Can I use Rpi 3.3V power pin (pin number 1, not GPIO signal pin) to power a 5mW green laser pointer originally powered by AAA x 2 = 3V bateries?
Let's say I have a device powered by 2 AAA batteries in series (1,5v x 2 = 3v and 625 mAh).
Is it possible to replace the 2xAAA battery with the 3,3v Raspberry PI GPIO output?
Or the 0,3v may be an ...
1
vote
1answer
54 views
Does a battery pack exists which does not need the microUsb power connection? [closed]
I'm building a small robotic car, which obviously needs battery power for it and the RPi. I've no problem with the battery pack for the car since it fits neatly into the chassis, but the RPi microUsb ...
0
votes
0answers
61 views
RaspberryPi is not provided with enough power
Im trying to learn robotics with raspberrypi but im having a problem.
I have 6 AA batteries that are connected to a LM2596S adjustable voltage regulator module, Which then is connected to the ...
0
votes
0answers
249 views
Are there any battery backup options that work with a PoE powered Pi?
Looking to have a Pi (4) that is powered over PoE - are there any battery backup options (i.e. hats) that can be stacked with the PoE hat & supply power if/when the PoE fails (and then re-charge ...
2
votes
1answer
393 views
Battery Usage Pi Zero W for video stream
I am trying to do live video streaming from the rasberry pi, meaning the camera is recording a video and then transmitting the live video over wifi.
What is the smallest battery I can use to power ...
1
vote
1answer
67 views
Most recommended power-supply option from dual-port Powerbank
I have a Raspberry Pi 3 model B [1]. It's powered by a DC adapter that outputs 5.1V and 2.5A. Although I consider ocassional manual reboots, I'm planning to use a Powerbank as some kind of UPS, after ...
0
votes
1answer
48 views
How to connect components of an RC (and rPi) car to the battery safely?
I am building an RC car from scratch. I have a 6v motor with an appropriate mdb, a 5v hobby servo, a raspberry pi zero w, and an 2200mAh 11.1v 50 C battery. I will upgrade the motor to a higher ...
1
vote
0answers
213 views
Raspberry Pi UPS with LiPo Battery
I have been working on a battery back up for my raspberry. The idea is classic: connect power bank to wall outlet and raspberry to power bank output. It works well with only battery power.
But when ...
1
vote
1answer
81 views
LiPo Voltage Drops
I am experiencing voltage drops with the following setup and I hope someone with mad electronics skills can explain my mistake to me:
Raspberry Pi 3 Model B
TFP401 Display Driver
7.0 Inch TFT Display
...
2
votes
2answers
5k views
Car Powered Raspberry Pi: Safe Shutdown and Power On
Apologies if this is a duplicate, but I can't seem to find a suitable solution.
I need to power a Raspberry Pi in a car, and for obvious reasons need to shutdown gracefully, however, I need it to ...
-1
votes
1answer
103 views
Raspberry PI Portable USB Charger [duplicate]
I bought a $5 usb charger that I am using to power my Raspberry Pi. The charger works decently but I am noticing that every once in while the raspberry pi will reboot. I have read that some chargers ...
0
votes
2answers
291 views
How best to power a motor hat asking for 6-12V for just two DC motors
I purchased a Waveshare Motor Hat because it has the nice Pi Zero size, extra long headers, and already has headers and blocks soldered, all for less than $13.
https://www.waveshare.com/motor-driver-...
1
vote
2answers
143 views
Power Raspberry Pi using GPIO Pins and a 10A supply with 7805
I am currently working on a project where i have micro-controller,stepper drivers etc all powered through a single 12v 10a power supply. I was planning to use the same supply to power the raspberry pi ...
1
vote
2answers
622 views
Powering Raspberry Pi and Arduino
I'm curious about powering Arduino Uno, Raspberry pi 3 b+ and motor driver L298n. I've got 11.1V / 2200 maH li-po battery. Firstly connected battery to motor driver, then feeded arduino from 5V out ...
0
votes
1answer
747 views
Car battery life with raspberry pi 3 model B
=> Raspberry pi 3 model B powered with car battery
I have two questions :
1- How can I calculate car battery life ?
2- Is their negative impact for the start-up of the vehicle when I use his ...
0
votes
1answer
104 views
Running Raspberry pi 3b+ on lithium ion 36wh/7.4v question
I have built a little medical assistive device using the raspberry pi 3, I wanted to attach it to a backpack and test it in real life situations.
I don't have much money to purchase much things but I ...
0
votes
2answers
684 views
Is it safe to use this battery with the Raspberry Pi Zero?
I have two questions actually:
1) is it safe to use this battery and these wires with the raspberry pi zero?
2) if yes, where do i solder the highlighted (red square) ends to the zero board?
0
votes
1answer
108 views
How to implement properly the iot garbage management using sensors and esp8266 to mobile application
My question: I don't know how to connect ULTRASONIC SENSOR(hc-sr04) which is for getting the fill level of garbage and DHT11 for temperature and humidity to connect both in a ESP8266 to mobile ...
1
vote
0answers
81 views
How to extend battery life on custom pi laptop
So I'm trying to make a pi laptop based on this project with a few differences:
I use this display instead of this
Technically, I'm using 18650 cells, but at a slightly reduced
capacity
No Arduinos ...
1
vote
2answers
633 views
Raspberry Pi DC Motor Not Working
So, I am attempting to control a DC motor using a RPi Model 2B. I am using a l293d motor driver to try to control the motor and a 4 AA battery holder. The diagram is supposed to look like this ...
3
votes
2answers
941 views
L298N Not working with 4 x AA Batteries
I have a 6V motor attached to a HiLetgo Module L298N Dual H Bridge and controlled via two Raspberry Pi 3B GPIO pins (current just using HIGH & LOW).
If I use a 5V power supply from my Raspberry ...
