LoRa: How to Send Data 5km with Arduino (No WiFi)
WiFi barely reaches your driveway. LoRa reaches the next town. Master the SX1278 module, Chirp Spread Spectrum physics, and build a 5km range sensor network.
IoT
Techno Chips
Electronics Innovation Hub
Your ultimate resource for electronics tutorials, projects, and innovations. Master Arduino, Raspberry Pi, IoT, Robotics, and more!
⚡ Arduino
🔌 IoT
🤖 Robotics
🔧 PCB Design
📡 Sensors
Explore by Category
Arduino
5 tutorials and projects
Electronics Basics
4 tutorials and projects
Integrated Circuits
6 tutorials and projects
IoT
10 tutorials and projects
PCB Design
2 tutorials and projects
Projects
1 tutorial and project
Robotics
5 tutorials and projects
Sensors
3 tutorials and projects
Software Engineering
2 tutorials and projects
Latest Tutorials
View All 
IoT
MQTT vs HTTP: Why Every IoT Engineer Uses Message Queues
Stop polling your server every 5 seconds. Learn why Professional IoT uses MQTT. Master Pub/Sub architecture, QoS levels, Retained Messages, and Last Will & Testament.
IoT
Infinite Battery Life: Mastering ESP8266 Deep Sleep & Power Saving
Run your IoT sensors for a year on a single coin cell. Mastering ESP8266 Deep Sleep, RTC Memory persistence, and the hardware hacks needed to achieve 20uA power consumption.
IoT
Cut the Cord: How to Implement Over-The-Air (OTA) Updates on ESP8266
Stop climbing ladders to plug in USB cables. Learn how to flash your ESP8266 wirelessly using OTA updates. Master partition tables, security credentials, and remote fleet management.
Software Engineering
Stop Using delay(): Master FreeRTOS for Professional Arduino Multitasking
Your Arduino code is stuck in 1990. Learn how to use FreeRTOS to run multiple tasks simultaneously, ensuring your ESP8266 never freezes again. The ultimate guide to real-time operating systems.
PCB Design
The $3 AI Chip: How to Run TinyML on ESP8266 (No Cloud Required)
AI usually requires a $1000 GPU. Not anymore. Learn how to train a TensorFlow Lite neural network and run it on a $3 ESP8266 microcontroller using TinyML. Edge computing demystified.