All Questions
40
questions
0
votes
2
answers
119
views
Charging LiPo Battery with Solar Panel and Water Turbine Generator
I'm looking for a way to be able to connect a Solar Panel (5.5 V / 540 mA) and a Water turbine generator (3.3 V / 120 mA) together to charge a LiPo Battery of 4,000 mAh.
While using the solar panel ...
0
votes
1
answer
163
views
Powering a dc brushless motor with lipo battery
I am trying to control a brushless dc motor. I have a H-bridge style MOSFET circuit and am controlling the gates with an Arduino. However I am trying to power the motor with a 7.4 V lipo battery (...
- 11
1
vote
1
answer
441
views
How to charge two 3.7 V Li-ion batteries in series with TP4056 charging module?
I use two 3.7 V Li-ion batteries in series for an Arduino Nano. To charge them, I use a TP4056 Type-C charging module, but it just charges one of the batteries. If I use two TP4056 charging modules ...
- 29
0
votes
1
answer
127
views
Arduino Lipo Battery Voltage Reading
I would like to read the voltage of a Lipo 4s battery with an arduino.
The arduino can only support 5V in input, so I made a shematic of my voltage divide.
Can you tell me if it is correct ?
...
- 1
1
vote
0
answers
141
views
ESP8266 Button Latch - Always On
I'm trying to build the following:
Press the button shortly, the ESP8285 should turn on.
GPIO16 can then be used to turn off the circuit.
The button press should latch the power on.
The problem:
When ...
- 11
0
votes
1
answer
736
views
Arming A Brushless Motor Controller Connected to ESP8266
I am trying to control a brushless motor with WeMOS D1 ESP8266
The motor controller and motor specs are below:
https://www.ebay.com/itm/114619313561
A 11.1v LiPo battery powers both the controller and ...
- 111
0
votes
0
answers
982
views
Monitoring a LiPo battery while powering the Arduino
Well I am tring to make a circuit to charging lipo battery then use lipo. while arduino nano using lipo battery, nano measuring the voltage level of lipo. I am planning to make deep sleep if voltage ...
- 1,139
1
vote
2
answers
312
views
Solar panel does not charge after lipo battery is low
I am trying to run arduino with solar panel, I have a project for farming so electrcity is problem. I need to use a independent energy.
I bought Solar Power Manager 5V SKU DFR0559 and a 2000 mAh LiPo ...
- 1,139
1
vote
2
answers
215
views
Arduino system ups problem!
this is my first question in the forum because i can't find a solution
on my own... i hope you can help me. Also english is not my first language so excuse my writing errors.
i design an arduino ...
- 11
1
vote
1
answer
3k
views
how to make perfect UPS for Arduino?
Well I am trying to make UPS, uninterruptible power supply, for Arduino Leonardo. This is my circuit
I am using for lipo chargher this ICs, it use TC4056A and DW01 . I think main problem is DW01 ...
- 1,139
3
votes
0
answers
147
views
Arduino Every Nano with 3.7V Li-Po - Reading voltage
I have Arduino Every Nano and 3.7V Li-Po battery (Akyga LP903759). I want to read the current voltage of a battery using analog pin. If I use a 50 kOhm and 200 kOhm resistor (in voltage divider) I'll ...
- 31
0
votes
0
answers
471
views
Feedback on USB-C Power + LiPo Battery + Nema 17 Stepper Motor PCB Design
TL;DR: I need a technical check on my circuit design that utilizes LiPo battery & USB-C charging.
Hi everyone,
I've been working on a project to build my own camera slider. It's powered by ...
- 69
0
votes
1
answer
74
views
Charging a 3.7v lipoly battery at less then 4.2v?
I'm trying to experiment with supplementing battery power using microbial fuel cells. MFCs are batteries that produce their charge from decaying matter, but they often only get up to 0.9v (unless ...
0
votes
0
answers
503
views
ESP32 MOSFET Control with a Twist
Looking for some help with using an ESP32 (running Arduino IDE) to control a MOSFET. Currently, I have used the combo to control many things successfully by electronically "pressing buttons" by ...
- 23
1
vote
1
answer
207
views
How to connect a Sparkfun LiPoly Charger to an Arduino Nano?
I was able to upload the Adafruit SSD 1306 OLED Library to an OLED Display using an Arduino Nano.
Now I want to power the Arduino Nano via a Lipo Battery but the battery must be rechargeable and I ...
