Build ESP32-C3 text to speech using AI API and the WitAITTS Arduino library. Full wiring, code, and troubleshooting guide for natural voice output.
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ESP32 Drone with Loudspeaker: Build Guide
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Build a Litewing ESP32 drone with a loudspeaker using Bluetooth Stream real-time announcements, voice alerts & audio from the air. No coding needed. Full wiring guide
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Reverse Polarity Protection Using MOSFET | Step By Step Circuit Guide
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Learn how to build a reverse polarity protection circuit using a P-channel MOSFET. Compare MOSFET vs diode efficiency, see step-by-step wiring, Zener gate protection & real-world uses.
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Arduino Game Controller: Complete DIY Build Guide & Code
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Learn how to build an Arduino game controller with our complete DIY guide. Includes circuit diagram, Arduino code, wiring instructions, and USB setup. Free GitHub code download.
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Interfacing GP2Y0D80Z0F Distance Sensor with Arduino Uno
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Learn how to interface the GP2Y0D810Z0F infrared distance sensor with Arduino Uno and a 16×2 I2C LCD to detect objects within 10 cm, with circuit diagram, code explanation, working principle, and real-world applications.
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DIY Arduino Robotic Arm: 6 DOF Build Guide with Code
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Build an Arduino robotic arm with servo motors, 3D-printed parts, a circuit diagram, and complete code. Step-by-step DIY tutorial for pick-and-place robotic arm operations.
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ESP32 Text to Speech Using AI: Wit.ai TTS Library Guide
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Complete ESP32 text to speech using AI guide. Learn ESP32 TTS library setup, circuit wiring, code examples for voice-enabled IoT projects with MAX98357A amplifier.
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ESP32 CAM Currency Recognition: Edge AI Arduino Tutorial
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Master ESP32 CAM currency recognition with our Arduino guide. Step-by-step: Edge Impulse training, circuit setup, code deployment for Indian note detection.
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PCA9306 Module with Arduino Uno: Wiring Guide & Code | Level Shifter
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Interface PCA9306 module with Arduino UNO. Complete wiring diagram, pinout, code & troubleshooting. 5V to 3.3V I2C level shifter tutorial for sensors.
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LiteWing ESP32 Drone Betaflight: Setup & Configuration Tutorial
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Step-by-step ESP32 Betaflight Drone tutorial. Flash firmware, configure Betaflight Configurator, tune PIDs, and set up your ESP32 Betaflight drone for stable flight.
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E88 Drone Teardown & Assembly Analysis | Hardware Breakdown
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Complete E88 drone teardown revealing internal hardware, flight controller, motor assembly, battery system, and WiFi camera module. Deep dive into budget quadcopter electronics.
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Joule Thief Circuit: A Low-Power Voltage Booster Circuit
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Build a Joule Thief circuit to power LEDs from dead batteries. Complete circuit diagram with toroid, working principle, components list & step-by-step assembly guide.
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SMS Alert System with Seeed Studio XIAO ESP32 & HC-SR04 Sensor
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Build a WiFi-based SMS alert system using Seeed Studio XIAO ESP32 and HC-SR04 sensor. Send real-time notifications via free API—no GSM module needed. Complete tutorial with code.
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Interfacing Raspberry Pi Pico RTC DS3231 : Easy Setup Guide & Code
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Learn to interface the Raspberry Pi Pico RTC DS3231 using Arduino IDE. Build an accurate digital clock with 16x2 I²C LCD. Includes circuit diagram, code & troubleshooting.
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Smart Energy Meter Using IoT with MQTT Dashboard & Alerts
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Build an IoT-based smart energy meter using ESP32 & PZEM-004T. Real-time monitoring via the MQTT dashboard, SMS alerts for abnormal conditions. Complete circuit & code included.
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LED Chaser Circuit using 555 Timer IC: Step by Step Guide 2025
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Build an LED chaser circuit using a 555 timer IC and a CD4017. Complete guide with circuit diagram, pinout, assembly steps, and troubleshooting. Adjustable speed control included.
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Automatic Toll Gate System Using Arduino
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Build an automatic toll gate system project using Arduino with RFID, IR sensors & servo motor. Complete circuit diagram, code & step-by-step tutorial for beginners.
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Build Your Own ESP32 AI Voice Assistant with MCP Integration
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Build an intelligent ESP32 AI voice assistant using Xiaozhi framework. Includes PCB design, hardware assembly, 3D enclosure, and MCP integration for smart home control.
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Build GPS Tracker with XIAO ESP32-S3: Geofence & SMS Alerts
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Create a Wi-Fi GPS tracker using Seeed Studio XIAO ESP32-S3 & Neo-6M module. Features geofencing, SMS alerts, offline storage. No SIM card needed. Free GeoLinker tracking!
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STM32 Precision Digital Micro Current Meter - Complete Build
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Complete guide to building a precision digital micro ampere meter using STM32. Measures nA to mA with OLED display. Includes circuit, PCB files, firmware & 3D enclosure. DIY ampere meter DC digital.
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