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234 followers·253 articles

arduino

#arduino·234 followers·253 articles

arduino

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Nov 05, 2024·

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ampheo

ampheoelectronic.hashnode.dev·Sep 04, 2025

Sep 04, 2025

How to connect LCD to Arduino?

Connecting an LCD (Liquid Crystal Display) to an Arduino is a fundamental skill. The most common type is the 16x2 Character LCD (16 columns, 2 rows), which can be connected in two main ways: the "standard" method using many wires, or the easier "I2C"...

How to connect LCD to Arduino?

Raphael Murillo

Raphael Murillo

raphmurillo.hashnode.dev·Sep 04, 2025

Sep 04, 2025

School ID-Based Attendance System

🔍 Project Overview 🏗️ What it is: An IoT-based attendance tracker using an RFID Scanner with ESP32, Google Sheets Integration, and Discord Notifications. 🎯 Why it matters: Automates attendance logging using open-source tools. ⚙️ Skills used: CA...

School ID-Based Attendance System

Discuss·8 reads

Asanka Akash Sovis

Asanka Akash Sovis

blog.asankasovis.com·Sep 01, 2025

Sep 01, 2025

Fixing the Issue of Failing to Flash Devices Using Arduino on Ubuntu

I recently came across an issue where Arduino, installed under Ubuntu, refused to upload to my ESP32 device stating that ‘/dev/ttyUSB0 is not available or accessible’. This might sound absurd, and after digging into this issue a bit, I think I found ...

Fixing the Issue of Failing to Flash Devices Using Arduino on Ubuntu

Discuss·2 reads

🐧 Path to Open Source

Akhil

bolt-x-labs.hashnode.dev·Sep 01, 2025

Sep 01, 2025

BOLT X LABS | Gesture - Controlled Robotic Arm

👋🏻 Hi, I’m Akhil The builder, designer, debugger, and [occasionally frustrated] brain behind BLOT X LABS. I started this journey with my friend Achyuthan, fueled by late-night experiments and our shared obsession with making machines respond to hum...

Vishal -

blinkybrain.hashnode.dev·Aug 27, 2025

Aug 27, 2025

How Bats Inspired One Of The Most Famous Distance Sensor : Everything about HC-SR04

If you are into IoT or Embedded Systems, you must have come across the HC-SR04, commonly known as the ultrasonic distance sensor, which is used to measure the distance of objects. This sensor is included in most Arduino kits, and it was also the firs...

How Bats Inspired One Of The Most Famous Distance Sensor : Everything about HC-SR04

Discuss·19 reads

Junluan Tsui

ble-voice.hashnode.dev·Aug 27, 2025

Aug 27, 2025

Connection and Practical Application of Arduino and KT6368A Bluetooth Chip: Improve Development Efficiency with Development Kits

In the fields of the Internet of Things and embedded development, Bluetooth chips are crucial components for wireless communication. The KT6368A is a low - cost pure - data chip that supports Bluetooth 5.1 dual - mode (BLE + SPP) and is widely used i...

Connection and Practical Application of Arduino and KT6368A Bluetooth Chip: Improve Development Efficiency with Development Kits

Discuss·2 reads

KT6368A Bluetooth chip Serial Data Passthrough dual-mode BLE SPP SOP8 AT Command

Beau Carnes

freecodecamp.org·Aug 27, 2025

Aug 27, 2025

Use Arduinos for Computer Vision

We just published a new course on the freeCodeCamp.org YouTube channel that mixes computer vision, deep learning, and Arduino into some really fun projects. In this course, you’ll build two hands-on applications using MediaPipe and OpenCV. The first ...

Use Arduinos for Computer Vision

Antima Mishra

velocrew.hashnode.dev·Aug 26, 2025

Aug 26, 2025

Velorantcrow

Good morning! Here is an expert explanation of your Velorantcrow project, perfect for a blog post, presentation, or a detailed README file. Velorantcrow is a smart, eco-friendly bike-sharing system designed to solve in-campus travel by allowing users...

Discuss·1 read

ampheo

ampheoelectronic.hashnode.dev·Aug 22, 2025

Aug 22, 2025

How to use a timer interrupt to blink an LED at a fixed rate?

Here’s a real-world pattern: use a hardware timer interrupt to blink an LED at a fixed rate while the main loop keeps doing other work (e.g., reading sensors, talking over serial). I’ll show an Arduino Uno (AVR) version first, then quick notes for ES...

How to use a timer interrupt to blink an LED at a fixed rate?

Discuss·1 read

timer interrupt

Raghav Garg

bleotaupdate.hashnode.dev·Aug 21, 2025

Aug 21, 2025

🚀 Introducing ESP32 Bluetooth OTA Firmware Update Library

Wirelessly update ESP32 firmware using Bluetooth Low Energy (BLE) with this Arduino-compatible library for IoT and robotics projects. Updating ESP32 devices in the field can be challenging without USB or Wi-Fi access. Traditional Wi-Fi-based OTA (Ov...

🚀 Introducing ESP32 Bluetooth OTA Firmware Update Library

Discuss·15 reads