A simple and small music box with customizable tunes. Parts involved? Arduino Micro, buzzer and a switch.
Battery capacity measurement using Arduino [Lithium-NiMH-NiCd].
In this Tutorial we are going to make a Battery Level Indicator using OLED Display.
Hulda Clark's Syncrometer was a device she claimed could detect the presence of various substances in the body, such as parasites, toxins,
Build your own Li-Po & Li-ion Balance Charger for under $10
Say goodbye to ice cubes and automatically cool your pet's water dish.
A non microcontroller project, A battery charger and overvoltage protector. Can be used as universal battery charger for lithium/ lead acid.
A Battery level indicator (Battery Guage) is an electronic measuring instrument that indicates the immediate voltage level of any DC battery
Trying to get a discharge curve of you lithium battery preventing over-discharge? You can get that for less than $10.
This is a project for a little self-driving robot that avoids things. It roams around randomly and sleeps too.
Push your buttons - hundreds of them!
Power consumption benchmark using Zolertia's Re-Motes, Spark Core, Ubidots, and potatoes.
You haven't made a project smaller than this one, along with features like a built-in battery that lasts a couple of days and a charger.
I tried to construct as simple as Ion Plasma Thruster that does not require 3D printed and other precise parts.
This PVIM Board is a Precision, Eight Channel, Synchronous Data Acquisition board (DVM), with Simultaneously Sampled Isolated Inputs.
A portable NES Emulator (runs on EPS32) in an NES Controller. Up to 14 ROMs and 2.5h playtime, all for less than $25.
Build a WiFi 2xAAA battery powered flower moisture/water sensor in minutes and monitor on a smartphone. Without coding and programming.
To me, an important part of building 18650 Lithium Ion power banks is recycling good pre-loved cells. How do you know which ones a good?
You can cut-off battery power at the voltage level you want.
This is the correct way to use super capacitors as a rechargable battery.
Ever wanted to build custom battery packs for, solar power banks but found commercial spot welders too expensive? I've got the best solution
IBEM is an ESP32-C3 based IoT Battery Energy Monitor SDK. This providing easy Solar Energy Systems Battery Bidirectional Current Monitoring.
Every 10 minutes it checks my position and if it detects that I am sitting for thirty minutes, it activates an alarm.
Learn how to build a battery level indicator that will trigger an alarm if the voltage drops too low.
