Microcontrollers

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Projects, tutorials, DIY, news, updates and everything related to different types of microcontrollers.

ESP32-C3 Text to Speech Online Using AI: Wit.ai API Full Guide

https://circuitdigest.com

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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Created by Jayant 13 weeks 4 days ago – Made popular 13 weeks 4 days ago
Category: Microcontrollers   Tags:

ESP32 Drone with Loudspeaker: Build Guide

https://circuitdigest.com

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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Created by Jayant 13 weeks 4 days ago – Made popular 13 weeks 4 days ago
Category: Microcontrollers   Tags:

ESP32 Text to Speech Using AI: Wit.ai TTS Library Guide

https://circuitdigest.com

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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Created by Jayant 18 weeks 8 min ago – Made popular 18 weeks 8 min ago
Category: Microcontrollers   Tags:

ESP32 CAM Currency Recognition: Edge AI Arduino Tutorial

https://circuitdigest.com

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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Created by Jayant 18 weeks 12 min ago – Made popular 18 weeks 12 min ago
Category: Microcontrollers   Tags:

SMS Alert System with Seeed Studio XIAO ESP32 & HC-SR04 Sensor

https://circuitdigest.com

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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Created by Jayant 22 weeks 3 days ago – Made popular 22 weeks 3 days ago
Category: Microcontrollers   Tags:

Interfacing Raspberry Pi Pico RTC DS3231 : Easy Setup Guide & Code

https://circuitdigest.com

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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Created by Jayant 22 weeks 6 days ago – Made popular 22 weeks 6 days ago
Category: Microcontrollers   Tags:

Smart Energy Meter Using IoT with MQTT Dashboard & Alerts

https://circuitdigest.com

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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Created by Jayant 22 weeks 6 days ago – Made popular 22 weeks 6 days ago
Category: Microcontrollers   Tags:

Build Your Own ESP32 AI Voice Assistant with MCP Integration

https://circuitdigest.com

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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Created by Jayant 24 weeks 6 days ago – Made popular 24 weeks 6 days ago
Category: Microcontrollers   Tags:

Build GPS Tracker with XIAO ESP32-S3: Geofence & SMS Alerts

https://circuitdigest.com

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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Created by Jayant 25 weeks 2 days ago – Made popular 25 weeks 2 days ago
Category: Microcontrollers   Tags:

STM32 Precision Digital Micro Current Meter - Complete Build

https://circuitdigest.com

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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Created by Jayant 26 weeks 6 days ago – Made popular 26 weeks 6 days ago
Category: Microcontrollers   Tags:

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