Inspired by the character Wheatley from Portal 2, check out how this real-time conversational AI system was built on the ESP32.

Researchers have developed a wearable device that can simulate a wide range of sensations, including vibrations, stretching, and pressure, to create a more realistic and nuanced sense of touch for virtual reality and other digital experiences.

RFID tags come in three types—passive, semi-passive, and active—based on how they use power for communication, plus they can be classified by operating frequency and whether they have chips.

A three op-amp instrumentation amplifier offers high input impedance, low output impedance, adjustable gain, excellent common-mode rejection, and high accuracy, making it perfect for applications needing precise measurements like test equipment and patient monitoring systems.

The LM741 op-amp, once revolutionary, still lingers in electronics education despite its outdated specs, while newer models like the TLC081 offer vastly superior performance. Check out the video!

Switching converters need multi-stage filtering and shielding to tackle EMI issues, especially in automotive applications, ensuring they meet strict regulatory standards while providing efficient power conversion across various markets.

This design idea presents a low-cost, high-performance digital oscilloscope that improves both measurement precision and noise rejection, yet keeps costs seriously manageable (~$50).

You can create a QR code reader using the ESP32-CAM board and Arduino IDE, which scans for codes and displays the data in the Serial Monitor.

This portable DIY electronics workstation packs a Raspberry Pi, touchscreen, custom PCB, and power modules into a compact, battery-powered setup.

Build your own laser distance sensor with a Raspberry Pi RP2040 microcontroller, and measure distances up to 2 meters with high accuracy and precision.

Designed for thermal hunting, this compact variometer combines solar charging, remote configuration, and audio cues that respond to altitude changes.

PrettyOTA is a free, user-friendly library that makes it easy to update Espressif ESP32 devices over-the-air, with a modern web interface and features like one-click firmware rollback and remote reboot.

The LILYGO T-Deck Pro is a compact ESP32-S3 LoRa messenger with a 3.1" e-paper display, keyboard, GPS, and optional 4G LTE or audio for off-grid communication.

Melexis' new Hall sensor, with its super high accuracy and fast response times, accurately converts magnetic fields into voltage, measuring current flow in micro- and milli-Tesla ranges for efficient monitoring up to 200 A.