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Wireless

ELECTRONOOBS

Electronic Engineer and YouTuber

For a while I’ve been watching PET bottles filament maker projects on YouTube. There are a lot of them, and I have to say, it is a very interesting project and I wanted to make one as well. So, following the same steps and ideas, I’ve made the design, made a schematic for a PCB, 3D printed some parts, made some tests and slowly made my own bottle to filament machine. Right now is not perfect, but at least, does it work? Well, check the post till the end to find out. I’ve made a PCB to go with this project and order it from PCBWAY, and basically, together with an Arduino, it should control the heating block temperature, the feeding speed, maybe a fan, it could also have a display and a control encoder and so on. So guys, let’s see how to make a bottle to filament maker and then try to print something with that filament. So, let’s get started.

  about 2 months ago

ELECTRONOOBS

Electronic Engineer and YouTuber

DIY Chronograph project. This is the font code for the arduino DIY chronograph. More instructions will be avaliable soon, as well as part list and STL files for it. A vídeo is beeing made by me to show how to build, program and use the chronograph with the Android app. The app apk file can be found with the fonts. Original post on GitHub, check external link above. 

  about 2 months ago

ELECTRONOOBS

Electronic Engineer and YouTuber

If you’ve accidentally uploaded some code to the Arduino Pro Micro board as “Arduino Micro”, “Arduino Leonardo” or any other board, there is a big chance to brick your board by crashing its bootloader so it won’t be recognized by the PC at all anymore.

  about 4 months ago

Useful Electronics

Undefined Job

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 communication report over UART and printing the log messages on a 1.9 8bit TFT display. A simple user interface is designed using squareline software that uses LVGL library. GitHub Repository: https://github.com/UsefulElectronics/esp32s3_la66_lorawan

  about 5 months ago

ELECTRONOOBS

Electronic Engineer and YouTuber

Multiplexers and demultiplexers are devices that allow us to control a greater number of devices with a smaller number of inputs or outputs. We can use these devices to expand the number of inputs and outputs of a processor like Ardunio.

  about 5 months ago

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 communicating witlessly over LoRa.

 

GitHub Repository:

https://github.com/UsefulElectronics/stm32-rylr998-lora-transceiver

  about 6 months ago

ELECTRONOOBS

Electronic Engineer and YouTuber

For some time, I had that a green background curtain in my workshop. I sometimes use it when I want to change the background of my videos, because is very easy to use that effect. As I had it till now is very ugly because it stands there in the corner. For now I was using it on some sliding rollers and when I don’t use it, I put it on the side. That’s ugly and it messes up the curtain. That’s why today I will go from that system to an automatic motorized curtain with rollers that will go up and down and can be controlled with my smartphone. Youc could buy such system from AliExpress if you want but I wanted a homemade version. And this is pretty cool, right? I’ll share with you as always, for free, the 3D printed parts, the schematic and the code on this post. So guys, let’s get started.

  about 7 months ago

RamBros

"Bringing RC Dreams to Life, One layer at a Time"

Dragon R1 - An RC race car that's simple and easy to build

Hey guys have look at the recommended print settings before you get started

Features of this Open Source car:

Maximum 3D printed partsEasy to source hardwareSimple AssemblyEasy maintenance and battery accessDual wishbone suspensionOpen differentialLow noise drive (using Blheli ESC)Printable with a 200mm size printer

Model is 1/12 scale;

length: 396mmwidth: 164mmheight: 71mm

  about 7 months ago

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-lora-transceiver

  about 8 months ago

Chris Smith

Draughtsman CAD

Hi I hope someone can help. I am working on a Judge Dredd (Dredd 2012) costume and want to do the Screen that is in the gauntlet playing a looped video with sound.i am totally new to this kind of thing and  i came across this tutorial using a 3.5" Nextion display. I have ordered the display but i need help in how i power it up and connect to the PC the or dont  i need to connect to the PC is everything on the SD card then put in the screen ?Sorry i just have no idea, power wise what voltage can  i use and like I  say most important how to wire it up ? This is the tutorial link https://electronoobs.com/eng_arduino_tut145.php

  about 10 months ago

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