Beginner ESP32 Projects
Start with the Beginner filter for simple wiring, clear Arduino code, and low-risk first builds.
Use the Beginner filterIoT Projects
Build Wi-Fi dashboards, MQTT devices, weather stations, and connected sensor nodes.
Browse IoT projectsRobotics Projects
Try motor drivers, line following, robot control, and steering logic.
Browse robotics projectsSensor Projects
Read distance, light, motion, soil, air, and environmental signals with ESP32 GPIO and ADC pins.
Browse sensor projectsSmart Home Projects
Explore thermostat, leak detector, relay, climate, and low-voltage automation ideas.
Browse smart home projects
Energy MonitoringAdvanced5 min read
Build an Isolated AC Current Monitor Prototype
Build a bounded ESP32 AC current monitor prototype with an SCT-013 clamp, ADC biasing, calibration limits, and strict m…
AIIntermediate6 min read
ESP32-CAM Color Object Detector Demo
Build an ESP32-CAM color object detector demo with AI-Thinker OV2640 wiring, RGB565 thresholding on the ESP32, LED outp…
EnvironmentalBeginner5 min read
ESP32 Air Quality Monitor
Build an ESP32 MQ135 air quality monitor with GPIO34 analog readings, warm-up and baseline testing, GPIO26 fan or relay…
IoTBeginner7 min read
ESP32 BLE Beacon and iBeacon Tutorial
Build an ESP32 BLE beacon and iBeacon demo with phone scanner testing, UUID, major/minor fields, RSSI behavior, and no…
ESP32-CAMAdvanced6 min read
Build an ESP32-CAM Face Detection Privacy Demo
Build a local ESP32-CAM face detection demo that distinguishes detection from recognition, with privacy, lighting, memo…
ESP32-CAMIntermediate5 min read
ESP32-CAM QR Code Scanner
Build an ESP32-CAM QR code scanner with AI-Thinker wiring, OV2640 grayscale capture, on-device Quirc decoding, Serial o…
ESP32-CAMIntermediate5 min read
ESP32 Camera Capture Server
Build an ESP32-CAM capture server with AI-Thinker OV2640 pin mapping, FTDI upload wiring, stable 5 V power, local /capt…
Industrial AutomationAdvanced7 min read
Build a Low-Voltage CNC Motion Controller Demo
Build a bounded ESP32 CNC motion-control demo with A4988 STEP/DIR wiring, separate motor power, current-limit setup, an…
EducationBeginner8 min read
ESP32 Digital Piano
Build an ESP32 digital piano with capacitive touch keys, I2S audio output, and MIDI over USB.
SensorBeginner7 min read
ESP32 Distance Monitoring System
Build an ESP32 HC-SR04 distance monitor with TRIG GPIO5, ECHO GPIO18 through a 10 kOhm / 20 kOhm divider, 5 V sensor po…
HealthcareAdvanced5 min read
Build an Educational ECG Waveform Viewer
Build an educational ESP32 AD8232 waveform viewer with ADC sampling, leads-off checks, battery/isolation guidance, and…
Smart CityIntermediate7 min read
ESP32 Fire Alarm System
Build an educational ESP32 fire alarm demo with MQ-2 AOUT through a 10 kOhm / 20 kOhm divider to GPIO34, buzzer GPIO27…
SensorIntermediate8 min read
Build an APDS-9960 Gesture Control Demo
Build a technically honest ESP32 gesture demo with APDS-9960 I2C wiring, interrupt handling, LED outputs, and false-tri…
SensorIntermediate7 min read
Build a Local NEO-6M GPS Reader
Build an ESP32 NEO-6M GPS reader with UART wiring, TinyGPS++ parsing, no-fix handling, sky-view guidance, and location…
AgricultureIntermediate7 min read
Build a Low-Voltage Greenhouse Vent Controller
Build a safe ESP32 greenhouse ventilation prototype with DHT22 readings, OLED status, relay wiring, hysteresis, and low…
FeaturedSmart HomeBeginner8 min read
ESP32 Home Climate Automation
Build a room climate controller that reads environmental data and automatically controls a fan, vent, or humidifier ind…
FeaturedIoTBeginner8 min read
ESP32 IoT Weather Station: BME280 Arduino Code
Build an ESP32 BME280 weather station with I2C wiring on GPIO21/GPIO22, 3.3 V power, Arduino code, Serial Monitor outpu…
Smart HomeIntermediate8 min read
ESP32 IR Remote Control: IRremote Receive and Send
Build an ESP32 IR remote with TSOP38238 receiver wiring, transistor IR LED driver, IRremote NEC receive/send code, line…
EducationBeginner8 min read
ESP32 Learning Trainer Board
Classroom ESP32 trainer with a push button on GPIO12 and status LED on GPIO14.
LEDBeginner6 min read
ESP32 LED Matrix Display: MAX7219 Scrolling Text
Build an ESP32 MAX7219 LED matrix display with SPI wiring, 5 V matrix power, MD_Parola scrolling text code, brightness…
EnvironmentalAdvanced6 min read
ESP32 Lightning Detector: AS3935 Sensor Demo
Build an ESP32 AS3935 lightning sensor demo with SPI wiring, interrupt handling, OLED output, noise/disturber classific…
FeaturedRoboticsIntermediate7 min read
ESP32 Line Following Robot
Build an ESP32 line following robot with two IR sensors, motor driver wiring, sensor calibration, steering logic, troub…
IoTIntermediate8 min read
ESP32 LoRa Remote Sensor Node (Point-to-Point)
Build a two-node ESP32 LoRa sensor link with real point-to-point radio, legal frequency checks, antenna safety, and pac…
Industrial AutomationIntermediate8 min read
ESP32 Machine Monitoring Node
Build a bench-safe ESP32 machine monitoring node with current-sensor input on GPIO35, relay module control on GPIO19, A…
FeaturedSecurityBeginner5 min read
ESP32 Motion Security Alert
Build an ESP32 PIR motion sensor project with HC-SR501 OUT on GPIO27, warm-up behavior, buzzer or LED alert logic, fals…
IoTIntermediate5 min read
ESP32 MQTT Sensor Dashboard
Build an ESP32 MQTT dashboard that publishes DHT22 temperature and humidity to local broker topics for Node-RED, Home A…
LEDIntermediate7 min read
ESP32 NeoPixel Music Visualizer (Amplitude-Reactive)
Build a real amplitude-reactive NeoPixel visualizer with an I2S digital microphone, external LED power, and honest no-F…
FeaturedDisplayBeginner5 min read
ESP32 OLED Weather Clock
Build an ESP32 OLED weather clock that syncs NTP time over Wi-Fi and shows BME280 temperature, humidity, and pressure o…
HealthcareAdvanced5 min read
Build an Educational Pulse Oximeter Logger
Build an educational ESP32 MAX30102 logger with SDA GPIO21, SCL GPIO22, estimated-only output, no-finger suppression, a…
FeaturedSecurityIntermediate7 min read
ESP32 RFID Access Control System
Build an ESP32 RFID access control system with MFRC522 RC522 wiring, SS GPIO5, RST GPIO22, relay or servo output GPIO26…
Industrial AutomationIntermediate7 min read
ESP32 RFID Inventory Tracker
Build an ESP32 RC522 RFID inventory tracker with 3.3 V wiring, SPI pins, UID-to-asset mapping, SD card CSV logging, dup…
LEDBeginner7 min read
ESP32 RGB LED Pattern Controller
Learn PWM color mixing with a single common-cathode RGB LED and a button-driven non-blocking pattern state machine on E…
RoboticsIntermediate7 min read
ESP32 Educational Servo Arm Controller (3-DOF)
Build a small joystick-controlled 3-DOF servo arm on ESP32 with safe angle limits, incremental motion, and separate ser…
ESP32-CAMIntermediate7 min read
ESP32-CAM Local Network Camera Demo
Build an ESP32-CAM local network snapshot page with AI-Thinker OV2640 pin map, stable 5 V power, FTDI upload steps, Wi…
FeaturedSmart HomeIntermediate7 min read
ESP32 Smart Door Lock
Build an ESP32 RFID smart door lock with MFRC522 SS GPIO5, RST GPIO22, servo output GPIO26, access granted/denied logic…
Energy MonitoringIntermediate6 min read
ESP32 Low-Voltage Energy Meter Demo
Build a low-voltage ESP32 energy-measurement demonstration using ADC readings and relative power calculations.
FeaturedIoTBeginner7 min read
ESP32 Smart Irrigation System
Build a plant watering controller that reads soil moisture and switches a pump or valve only when the soil is dry.
IoTIntermediate7 min read
ESP32 Smart Mailbox
Build an ESP32 smart mailbox with a reed switch on GPIO33, passive piezo buzzer on GPIO25, deep sleep wake code, lid-op…
Smart CityBeginner8 min read
ESP32 Smart Parking Sensor
Build an ESP32 smart parking sensor with HC-SR04 TRIG GPIO5, protected ECHO GPIO18, 5 V sensor power, LED status, dista…
Smart HomeIntermediate7 min read
Build a Low-Voltage Smart Power Strip Simulator
Build a low-voltage ESP32 smart power strip simulator with MOSFET outputs on GPIO25, GPIO26, GPIO27, GPIO33 and no main…
Smart CityBeginner5 min read
ESP32 Smart Street Light
Build an ESP32 smart street light with LDR analog input on GPIO33, relay or low-voltage lamp control on GPIO25, thresho…
FeaturedSmart HomeIntermediate8 min read
ESP32 Smart Thermostat: Temperature Control and Code
Build a low-voltage ESP32 smart thermostat with DHT22 on GPIO4, relay fan control on GPIO26, hysteresis thresholds, saf…
SensorBeginner5 min read
ESP32 Soil Moisture Monitor
A plant monitor that reads a capacitive soil sensor, converts raw ADC values into a moisture percentage, and uses LEDs…
AgricultureAdvanced5 min read
Build an Educational Soil pH Monitor
Build an educational ESP32 soil pH monitor with a conditioning board, GPIO34 ADC1 input, pH 4/pH 7 calibration, and no…
EnvironmentalBeginner5 min read
ESP32 UV Index Monitor (Educational Estimate)
Build an educational UV-index monitor with a real VEML6075 I2C UV sensor on ESP32, clearly labeled as an estimate and n…
Industrial AutomationIntermediate5 min read
ESP32 Vibration Monitor
Build an ESP32 vibration monitor with MPU6050 accelerometer. From threshold alerts to FFT spectrum analysis and MQTT pr…
Smart HomeIntermediate6 min read
ESP32 Sound-Triggered Relay Demo
Build an ESP32 sound-triggered relay demo with an INMP441 I2S microphone, peak detection, and a low-voltage relay load.
Smart HomeBeginner6 min read
ESP32 Water Leak Detector
Build an ESP32 water leak detector with resistive water sensor AOUT GPIO34, DOUT GPIO35, buzzer GPIO25, wet/dry thresho…
FeaturedRoboticsIntermediate7 min read
ESP32 WiFi Robot Controller
Build a browser-controlled ESP32 robot that drives motors from Wi-Fi commands served by the board itself.