Now Live on Google PlaySensoreact Deskbot & Sensoreact Control are on the Play Store

Control your hardware and automate your workspace. Download our apps right on your phone.

Get it on Google Play
The Ultimate Electronics Reference Platform

Build Smarter Electronics
Projects

Component guides, circuit diagrams, Arduino code, and IoT tutorials all in one place. Sign in to unlock everything.

50+ Components

Detailed guides, pinouts, and datasheets for every component.

Circuit Builder

Step-by-step breadboard layouts and wiring diagrams.

IoT Tutorials

Arduino, ESP32, and sensor projects for all skill levels.

Compare Tools

Side-by-side component comparisons to pick the right part.

New Feature

Meet Sensoreact AI

Your intelligent electronics assistant. Ask anything about sensors, circuits, Arduino, ESP32, and IoT.

  • Generate Arduino & ESP32 code
  • Explain any component or circuit
  • Troubleshoot hardware issues
Sensoreact AIOnline
S

How to connect DHT11 to ESP32?

Connect VCC to 3.3V, GND to GND, DATA to GPIO4 with a 10k pull-up resistor.

#include <DHT.h>
DHT dht(4, DHT11);
dht.begin();
Ask about electronics...