ESPConnect gives you a web UI to connect to your ESP32s and pull detailed hardware info like MAC, memory, and security data. It works with multiple ESP32 versions, lets you edit flash partitions, back up firmware, explore file systems, and monitor serial logs.

Unlike batteries, supercapacitors excel at rapid energy storage and release with excellent cycle life. Here’s a detailed look at their inner workings, maths behind charging, applications, and how to design PCBs around them.

This project logs environmental readings from a BME280 sensor onto a microSD card as a .csv file and runs a web server on the ESP32 that loads this file to show interactive charts of temperature, humidity, and pressure, all accessible from any device.

LoRa modules like the RYLR999 offer long-range data transmission at low energy cost, unlike Wi-Fi or Bluetooth. This tutorial shows you how to connect the RYLR999 to an Arduino for simple wireless communication.

Set up a basic traffic light circuit with Arduino using easy code and a simple wiring layout, perfect for learning the basics of electronics and programming.

By hooking up a water level sensor to an Arduino UNO, you’ll get a small device that monitors water levels and triggers LED and buzzer alerts to warn of overflows or low water conditions.

Using a multi-MCU design, this system captures vehicle parameters live, handles network failures by locally saving data, and then pushes it to a cloud pipeline for remote monitoring and visualization.

The ESP32 includes a Hall effect sensor built into its module, letting you detect magnetic fields and combine that data with WiFi or Bluetooth connectivity. While it’s not perfect for high-precision tasks, it’s great for simple magnetic triggers or learning the Hall effect.

Instead of Firebase or MQTT, your ESP32 can directly talk to Google Sheets through Apps Script, enabling sensor monitoring, relay control, and data logging all managed via a web dashboard.

Combining a XIAO ESP32S3 Plus, e-paper display, and MPU-6050 accelerometer, this tiny device shows a random fortune when shaken. It stores thousands of fortunes offline, uses a LiPo battery, and includes a mount for desk or backpack use.

This 3D printed macropad uses a DFRobot Beetle RP2350, a rotary encoder, OLED screen, and mechanical switches with no custom PCB. It features hand-wired snap-fit parts, mode switching via the encoder, and a web tool for easy key remapping and configuration over USB.

Sentra is a fully battery-powered DIY CCTV camera built on the ESP32-S3, offering live Wi-Fi streaming, motion detection, night vision, SD recording, and real-time sound monitoring all in one compact device. It features a sleek 3D-printed enclosure and a custom browser dashboard that runs locally without apps or cloud services.

Using the AC695678N chip for wireless audio reception and the PAM8403 amplifier to power speakers, this design handles Bluetooth audio processing and amplification in a neat, affordable circuit.

You can turn an Altoids tin into a powerful little cyberdeck by fitting a Raspberry Pi Zero, 2-inch LCD, custom keyboard, and UPS power. Clever 3D-printed parts and hinge tweaks help manage tight space and add features like USB hubs and cooling.

The ESP32-P4-Pi combines dual chips for powerful multimedia and connectivity, including Wi-Fi 6, 100 Mbps Ethernet, and a rich set of peripherals like MIPI camera, display outputs, dual microphones, and a 40-pin header compatible with Raspberry Pi gear.

The Arduino UNO Q smart mirror blends an STM32 MCU for real-time temperature and humidity sensing with a Qualcomm Linux MPU that runs your calendar, weather updates, and AI camera feed, all visible through a two-way mirror panel.