ESP32
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Open-Source ESP32 Hexapod Robot That Sees, Talks, and Fights Educational robotics company Hiwonder has released miniHexa, an AI hexapod robot based on an ESP32 with Arduino programming support. Its physical prowess comes from its 18 individual servo motors that enable realistic hexapod locomotion and complex maneuvers. It can strafe in any direction without needing to turn around through the use of inverse kinematics algorithms. The bot can be… |
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Wireless Stepper Motor Controller with ESP32 and TMC2240 The Internet of Things (IoT) has revolutionised how we control devices, enabling seamless remote monitoring and operation over a network. This tutorial presents an innovative solution for remote stepper motor control, allowing you to precisely adjust its position, monitor its performance, and receive real-time feedback directly from a simple web browser. For those… |
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Understanding Thermal Printers and How to Use it with ESP32 Thermal printer technology has revolutionised receipt printing in retail, healthcare, and IoT projects. This comprehensive ESP32 thermal printer tutorial covers how to interface popular thermal printers, such as the PNP-500, with ESP32 and Arduino microcontrollers. Whether you're building an ESP32 receipt printer, barcode printer, or QR code printing system,… |
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Marvel Asked and a Creator Delivered a Working H.E.R.B.I.E. Built in Seven Days Marvel asked content creator Frank to build a working replica of H.E.R.B.I.E., the robotic assistant from The Fantastic Four: First Steps, for the film's blue carpet premiere. With only seven days of time and help from engineer Danny, Frank built a fully animatronic H.E.R.B.I.E. using custom 3D models and off-the-shelf components. A two-wheeled balancing robot called Diablo was used as… |
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LED Matrix Display Project Uses ESP32 and Raspberry Pi Platforms If you've ever wanted a customizable smart display without the high cost or vendor lock-in, this DIY project might inspire you. Adam Conway, Lead Technical Editor and Developer for XDA, recently shared how he turned a Waveshare 64x32 P2.5 RGB matrix panel into a fully functional LED display using both a Raspberry Pi and an ESP32. A HUB75 interface, which is standard for these types of… |
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Inside the DIY Robot That Rolls Like a Drone on the Floor Max Imagination has published the making of a DIY spherical robot that moves by rolling inside a transparent plastic ball. It’s meant to entertain pets, explore tight spaces, and be driven via smartphone, like an FPV drone that rolls on the floor. The project uses an XIAO ESP32S3 Sense from Seeed Studio, which includes Wi-Fi, a 2MP camera, a mic, and a microSD slot. Two geared motors… |
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RAK11160 Dual-Core Module Featuring LoRaWAN, Wi-Fi, and BLE for Low-Power IoT RAKwireless has launched the RAK11160 WisDuo Module. This dual-core IoT module combines two microcontrollers: an STM32WLE5 for LoRaWAN-based long-range wireless communication and an ESP32-C2 for Wi-Fi and Bluetooth Low Energy connectivity. The ESP32 can enter a deep power-off mode using only ~1 µA. This makes it great for remote farming sensors, moving vehicles, forests, and even asset… |
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DIY Piano Doorbell That Replaces the Classic Chime with Musical Notes A simple piano doorbell that replaces the usual chime with real piano notes was demonstrated in a recent project published by Arpan Mondal. The system combines microcontroller-based control with audio playback to create an interactive doorbell. At its core is an ESP32-S3, which takes inputs from 5 keys styled like a tiny piano. Each key is built using micro limit switches and connected… |
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Valtrack V4, A Low-Power 4G LTE GPS Vehicle Tracker Valtrack V4 by Valetron Systems is a GPS vehicle tracking device designed for 4G-LTE CAT1 networks with global band support. The device is built around the Espressif ESP32-C3FH4 RISC-V chipset. It helps log routes, track locations in real-time, and prevent theft through an onboard LIS3DH 12-bit, 3-axis accelerometer motion sensor. It connects directly to a vehicle’s 12 V lead-acid… |
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DIY 3D-Printed RC Car Hits 48 kmph with Custom ESP32 Electronics Lizard is a remote-controlled race car project published by TRDB. It’s all 3D printed components minus the wheels and powered by a custom electronics system based on the ESP32 microcontroller. Designed to be customizable, the Lizard features a rear-wheel drive system with open differential, independent suspension, and double Cardan joints. The drivetrain and chassis are printed using PETG… |
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Fusion Chime Vision, A Collaborative ESP32 Powered Smart Doorbell System Distinguished from traditional doorbells, Fusion Chime Vision features a built-in 2.4-inch color display that can present greetings, images, or alerts. You can customize almost everything and find creative ways to make it work with your smart home ecosystem. It’s a doorbell that does more than just ring. It allows seamless visitor interaction with a two-way connection and real-time video… |
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Another Take on DIY ESP32 Drone, Now with Popsicle Sticks We’ve seen multiple DIY drone projects over the years, each bringing something unique to the table. At CircuitDigest, we even built our own version of a Wi-Fi controlled drone using the ESP32, which later evolved into LiteWing—an open-source drone development platform aimed at makers and researchers. Continuing in this spirit of accessible drone building, Vishal Sharma from the YouTube channel… |
