https://youtu.be/dV8yROPrPJwHi In this tutorial I am sharing with you guys my experiment with LA66 LoRaWan module from Dragino. I have interfaced the module using ESP32S3 MCU. While 2 LA66 modules were exchanging pingpong messages over 868MHz LoRa band, The MCU is receiving the RF communic... view more

• lora

https://youtu.be/aKUESTVg_8A

In this tutorial. a simple wireless PIR motion sensor is designed and build over LoRa. the project includes 2 board with to STM32 MCUs. One of them is interfacing a PIR sensor and the other one emulates siren sound using a buzzer. Two MCUs are commun... view more

https://youtu.be/SqHOaU0ZsxA

In this tutorial, 2 STM32 micro-controllers are communicating together using RYLR998 LoRa Module. RYLR998 interfaced over UART and its AT commands are explained in details.

GitHub Repository: https://github.com/UsefulElectronics/stm32-rylr998-l... view more

• microcontroller
• STM32

https://youtu.be/uqETZzQw2Oo

In this tutorial STM32 MCU is used to interface PCF8574 Pin Expander over I2C to control 8 LED sound level indicator using only 2 pins. Both hardware and software are explained in details. All tutorial materials are shared in the GitHub Repository

Tutorial link.

https://youtu.be/gAXVNXT1Eh0

In this tutorial, STM32 micro controller is used to implement the algorithm used to trigger several different events, which are single press, double press and held pressed, form one single push button is explained with the necessa... view more

Tutorial link:

https://youtu.be/1LzrtehidOI

This tutorial is a continuation of "STM32 Multiple Buttons ADC Read Through One Pin With Software Button Debounce" Tutorial, STM32 based electronic piano simple project was done using only 2 pins. One pin is configured t... view more

This is my 3D candle LED design that can be used for decoration purposes. The design STL file can be downloaded from the link bellow:

https://www.thingiverse.com/thing:5253695

Youtube Video Link:

https://youtu.be/m5ILpJv-ESA

• 3D
• 3d printing
• LED
• candle
• led candle

In this tutorial, STM32 MCU is used to read the status of 3 buttons using only one pin that is configured to do analog to digital conversion continuously to read the voltage variations of a voltage divider circuit over DMA. Software button debounce algorithm is also used in order to ignore fal... view more

• coding
• C
• button debounce
• STM32
• microcontroller

In this video, my 3D printed 5mm LED Diffusers designs are demonstrated with 5mm RGB LED flasher. the STL files can be reached through thingverse link below:

https://www.thingiverse.com/thing:5174346

Video link:

https://youtu.be/rlX_lzT8xk0

• 3DPrint
• LED_Diffuser
• LED

In this video, an RGB LED is controlled over WiFi using iPhone HomeKit app. HSB to RGB conversion model ESP32 WiFi provisioning and the way of adding new accessory to HomeKit app are discussed in details. HomeKit lightbulb example is discussed line by line.

Tutorial video:

... view more

https://www.youtube.com/watch?v=ELcS_2wsc9E In this video, the steps followed to construct an RGB LED array hardware are explained in details and the way of controlling the array LEDs colors using STM32 over multiple multiple ADC channels with DMA is discussed. view more

• DMA
• STM32
• RGB
• LED

https://youtu.be/hrVOO_k5FOI  In this Tutorial, TM1637 LED driver is interfaced using STM32 microcontroller. The steps of building the interface from scratch and the used hardware are explained in details. The link of the tutorial is shared above. All the used documents are shared in... view more

https://github.com/UsefulElectronics/stm32-tm1637-library.git Hi all I have just finished working on writing an STM32 TM1637 interfacing library. All files and codes are shared in the link above. This means that a new tutorial is coming soon stay tuned view more

Hi friends.In this video, the working principle of 555 timer latch circuit is explained in details. With the help of this circuit it is possible to make a push button act as an ON/OFF switch. The circuit is ideal for small and simple loads. Copy and paste the link below to your browser to w... view more

• 555 timer latch circuit
• 555 timer
• push button to ON/OFF siwtch

Hello ElectroNOOBs :)how is everybody?In this video, the working principle of comparator is explained and used to build an oscillating circuit out of an op-amp. The oscillator output can be adjusted depending on an RC network. every part used in the circuit is explained in detailsStay tuned. view more

• oscillator
• oscillator circuit
• opamp based oscillator
• comparator
• comparator explination
• electronics
• electronic project

hello everybody :)The way of building electronic bagpipes is explained in details in this video. Starting from SR latch through the concept of a stable multi-vibrator oscillator, the used circuit is build in details and the function of each part is it is discussed.see you next time view more

• electronics
• DIY
• small project
• flipflop
• transistor
• frequency

hello my Friends I hope that everybody is doing fine Today I want to share this video with you, where the working principle of a relay based oscillator is explained theoretically and practically. This oscillator is embedded to a boost converter to step up the DC voltage. The working principle... view more

• Realy
• Boost converter
• oscillator
• mechanical oscillator
• relay oscillator
• step up voltage
• boost voltage
• electronics
• electronic project

Hello my Friends,

This is my first post in electronoobs. I will be posting regularly !! so I hope you stay tuned :)

My style of posts will be concentrated on video so you don't waste your time reading long articles

In this article I want to share with you a video that I c... view more

• current limitting circuit
• relay
• relay based circuit
• relay application
• short circuit protection circuit
• short circuit protection
• circuit protection
• DIY