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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
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Introduction:Introducing OpenRad, a simple radiation monitoring solution powered by the SBM-20 GM tube and TTGO ESP32 microcontroller. this project offers a user-friendly approach to tracking and meas...
OpenRad: A Geiger Counter using SBM-20 and ESP32
2176
2
6
Omar Khorshid
Omar Khorshid
EGYPT
2
0
Intro:long time i was harvesting lithium ion batteries from scrap laptop battery packsit's wasn't easy to test battery capacity manually so i made this device to tell me the output volt a...
Battery capacity tester discharge/charge monitor
6292
4
3
Eslam Abdou gharib
Eslam Abdou gharib
EGYPT
4
1
Project OverviewFor someone who loves to shoot some random hobbyist videos, it’s somehow expensive to buy a motorized camera slider. So, I built my own. In this tutorial, we will go through each step ...
Arduino Motorized Camera Slider
13069
10
16
Ahmed Ibrahim
Ahmed Ibrahim
EGYPT
12
1
ATmega328P Bare minimum configurationBefore building our standalone ATmega328P chip Arduino compatible board, let’s take a look at the awesome Arduino UNO board and see the main components that used t...
Cairoduino Arduino Compatible Board
4816
4
2
Ahmed Ibrahim
Ahmed Ibrahim
EGYPT
12
1
Introduction And The Big PictureTiny-Cairoduino is a small-sized Development board based on the beautiful ATtiny85 chip from Atmel. Don’t get fooled by its small size, it’s powerful with great potenti...
Tiny-Cairoduino Open-Source DIY Kit
1420
0
2
Ahmed Ibrahim
Ahmed Ibrahim
EGYPT
12
1
The idea came from the need of the cheapest PWM Generator without Complicating with Microcontrollers or other ICs.
PWM Generator
1693
2
1
Ahmed Elsmahy
Ahmed Elsmahy
EGYPT
6
0
Piece Size : 100mm x 10mm Strip for Neopixel / Fastled WS2812BPanel Size : 100mm x 100mm (10 piece)Input Voltage : 5VDC Combatible with Arduino Neopixel Laibrary
Fastled_strip_panel_v1.0
1721
0
5
Amr Salama
Amr Salama
EGYPT
3
2
Lithium Battery Charger and Management System for Single CellOver Charge and Over Discharge ProtectionConstant Current Constant Voltage Method
Lithium ion Battery Charger With Full Protection
1951
0
1
Ahmed Elsmahy
Ahmed Elsmahy
EGYPT
6
0
I made a modified power supply by taking 220v ac and out range from 1.4v to 34v dc with a range 0A to 10A it has a cooling system with a 12V fan and heat think and holes in the box with diodes and fus...
Modified power supply
653
0
1
Engineer
Engineer
EGYPT
0
0
IntroductionToday, we will learn how to control home light switches by just hand-clapping, Cool ha! to build that project we will use some new electronic components like the decade counter CD4017 IC a...
Handclap AC Switch Control
2413
2
0
Ahmed Ibrahim
Ahmed Ibrahim
EGYPT
12
1
Tiny AVR Programmer BackgroundToday I will build an AVR programmer based on the FabOptimus that built by Ali Shtarbanov. It's very well documented and makeable at a fab lab. But, I wanna make a very s...
Tiny AVR Programmer
1876
0
1
Ahmed Ibrahim
Ahmed Ibrahim
EGYPT
12
1
The circuit that switches between red and blue lights to simulate police lights using the ESP8266 controller and the PNP transistor 2N2222 can be described as follows:ESP8266: Acts as the main control...
Police lighting
478
0
1
CD Smart
CD Smart
EGYPT
8
1
Robust design using an NPN transistor to drive each relay with a PC817 optocoupler.Relay on LED indicator for each of the four relays.A diode is provided for reverse polarity protection.2 pin PBT prov...
4CH Relay Module
704
0
3
CD Smart
CD Smart
EGYPT
8
1
The Idea came from The NEED of Controlling stepper motors without complicating with and programming or microcontrollers and other complex ICs, I want to find the cheapest Solution.
Hard Disk Stepper Motor Speed Controller
1671
1
3
Ahmed Elsmahy
Ahmed Elsmahy
EGYPT
6
0
You Always Need Such Circuit Before any Device Use any Kind of INDUCTOR Such as Power Supply, Inverters, Motors, Speakers, SMPSs
Electromagnetic Interferance Reduction
822
0
0
Ahmed Elsmahy
Ahmed Elsmahy
EGYPT
6
0
Control any 3 devices through WIFI by your Smartphone ;)
ESP8266 3 Channels Control
1455
0
2
Eng-Mena
Eng-Mena
EGYPT
5
0
1
2
