Learn how to build a Face ID-controlled digital door lock using ESP32-CAM, relay module, and solenoid lock. Step-by-step guide with circuit diagram, Arduino IDE setup, and full code for a secure IoT-based access system.
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ESP32-CAM Face Recognition Door Lock System using Solenoid Lock
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DIY WiFi-Controlled Drone with ESP32 and Arduino
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Learn how to build a WiFi-controlled drone using ESP32 modules and MPU6050 IMU. This DIY project offers stability control, smartphone control, and easy upgradability. Get step-by-step instructions and a complete circuit diagram.
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How to send whatsapp message from ESP32?Easy and Free API for WhatsApp
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Send real-time WhatsApp alerts from ESP32 using WiFi and CircuitDigest Cloud. Trigger notifications from sensors without GSM modules, SIM cards, or complex hardware using the free API from CircuitDigest Cloud
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How to send Email from ESP32 for sensor monitoring and status updates
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ESP32 distance monitoring system using an ultrasonic sensor and WiFi to send real-time email alerts via Circuit Digest Cloud API when objects cross safety limits.
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ESP32-C3 Text to Speech Online Using AI: Wit.ai API Full Guide
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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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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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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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