Blog & Guides
Read, learn, build.
Tutorials, wiring guides, and deep dives on Arduino, ESP8266, and everything in between.
Read, learn, build.
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Blog Post
How to Use a MAX7219 7-Segment Display with Arduino
Wire a MAX7219 8-digit 7-segment display module to an Arduino and show numbers and letters in minutes using the LedControl library.
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Blog Post
E-Paper Display with ESP8266 — WeAct 4.2" Wiring & Setup
Wire a WeAct 4.2 inch e-paper display to an ESP8266 over SPI and get a persistent image that stays even after unplugging — no power needed.
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Blog Post
How to Read a Potentiometer with Arduino (Raw + Percent)
Wire a potentiometer to an Arduino and read its values via serial monitor, including a percent-mapped version for cleaner output.
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Blog Post
How to Use a Bluetooth Module with Arduino
A quick guide to wiring the HC-05 Bluetooth module to an Arduino Mega and sending messages from an Android phone over serial.
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Blog Post
How I Turned My PC into a Dev & Media Server
How I repurposed an old PC as a 24/7 home server for Docker projects and local media streaming with Plex.
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Blog Post
I Turned My Old Fan Into a Remote Control Fan (ESP8266 + Relay)
How to add Wi-Fi remote control to an old fan using an ESP8266, a relay module, and a simple HTTP toggle sketch.
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Blog Post
555 Timer IC: Build a Simple LED Flasher
Wire up a 555 timer IC to blink an LED — a classic beginner circuit that shows how timing chips work.
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Blog Post
GPS Module + Arduino: Does a Cheap Sensor Actually Work?
Testing a budget GPS module wired to an Arduino Mega — from raw NMEA data to parsed coordinates, with real-world signal tests indoors, through a window, and outside.
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Blog Post
Wiring an Ultrasonic Distance Sensor to ESP8266
Step-by-step guide to connecting the HY-SRF05 sensor to an ESP8266. Covers 5V power, TRIG on D1 and ECHO on D2, plus a sketch that prints live distance to the Serial Monitor.
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Blog Post
Reading IR Sensor Values with ESP8266
How to connect and use an IR sensor with ESP8266. Explains each pin, shows the wiring, and demonstrates reading both digital and analog values from the sensor.
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Blog Post
Getting Your ESP8266 Online: WiFi Setup Guide
How to add the ESP8266 board to Arduino IDE and write a simple WiFi connection sketch. Includes the board manager URL and a GitHub repo with working example code.