microcontroller
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5 Hidden Features of the Arduino UNO R3 You Probably Didn’t Know The Arduino UNO R3 is often the first board people use to learn electronics and programming. Connect an LED, read a sensor, control a motor, upload a sketch, and it can seem like you’ve already discovered everything the board can do.But there is much more going on underneath.At the heart of the UNO R3 is the ATmega328P microcontroller. That small chip contains hardware features that many… |
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Cat Collar Fits Two AI Models' Runtime Memory Into 48KB of Its 256KB RAM by Never Running Them Together An open source project called Meowtion packs two on device AI models onto a single microcontroller with only 256KB of RAM, using a scheduling trick rather than model compression to make it fit. Built by Jerome Graves and documented on Hackaday.io, the wearable collar tracks a cat's eating, drinking, and resting behaviour to flag early changes that can precede illness. The collar runs on… |
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ESP32-S3 Runs a 28.9-Million-Parameter LLM, Borrowing a Memory Trick From Google's Gemma Developer slvDev has published an open-source project that runs a 28.9-million-parameter language model directly on an ESP32-S3, a microcontroller that costs roughly $8. The model runs entirely on the chip itself, with no data sent to a server, generating text at roughly 9 tokens per second and outputting it to a small connected display. The achievement stands out because of how little working… |
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How to Build an IoT Indoor Weather Station Using CircuitDigest Cloud "Is it going to rain, or should I leave the windows open?" we would have asked ourselves numerous times. Now the weather is clear, but sometimes the rain will suddenly start pouring. The standard weather forecast application may give you accurate forecasts near the airport or other places, which are kilometres away from us, but it will not give us accurate forecasts… |
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EWskills Launches EWsim.io - A Free Browser-Based Circuit Simulator Pune, India — July 2026. EWskills, the Industry focused skill-building platform for electronics and embedded engineers, has announced the launch of EWsim.io, a browser-based mixed-signal circuit simulator that executes microcontroller firmware. The tool is free to use, requires no installation, and is aimed at Engineers, students, educators, hobbyists, and Makers.Developed by the team behind… |
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DIY World Cup Live Score Gadget With football fever reaching its peak, DHK DUDE from youtube built this pocket-sized, real-time World Cup score gadget for his desk. Powered by a Wemos D1 Mini microcontroller, this custom IoT gadget utilizes built-in Wi-Fi to seamlessly connect to the internet, fetching live match telemetry, group fixtures, and team data directly through web APIs. Like every maker… |
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Hot Wheels Meets Embedded Engineering: Inside a 1:64 Scale FPV RC Drift Car A Hot Wheels car has been transformed into a fully functional FPV RC drift platform by YouTuber Pro Know, proving that serious embedded engineering can exist even at a 1:64 scale. The project replaces the toy’s original internals with an ESP-based microcontroller running custom firmware, paired with a purpose-built PCB that integrates control logic, power… |
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Nuvoton Unveils New Cortex-M23 Microcontroller SOC, NSC128L42, for High-Precision Measurement Applications Hsinchu, Taiwan– June 30, 2026 – Nuvoton Technology Corporation, a leading global semiconductor provider, has announced the launch of the NSC128L42, a new 32-bit Arm® Cortex®-M23 microcontroller designed for high-precision measurement. This highly integrated solution combines a 24-bit Sigma-Delta ADC, an LCD driver, and high-quality voice synthesis in a… |
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Every Pixel Has Its Own Microcontroller Imagine a display where every single pixel has its own brain. That's the ambitious idea creator bitluni set out to bring to life in a six-month engineering project. Instead of relying on a central GPU, the display turns every pixel into an independent computing node. The ultimate goal is a 65,536-core QVGA display, while the first working prototype already features 8,192 RISC-V… |
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ESP32-P4 Powers a DIY IP KVM for Remote PC Control Remote access devices like IP KVMs are usually built around powerful single-board computers such as the Raspberry Pi. But what if the same job could be handled by a microcontroller instead? That's what creator Jonathan Rowny set out to explore by building a functional IP KVM using Espressif's ESP32-P4. The project aimed to remotely stream a computer's display… |
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Built a Portable AR Sandbox Using an ESP32 and a ToF Sensor If you've ever visited a science museum, an exhibition, or stumbled across a viral video online, you've probably seen those interactive sandboxes where creating a mountain with your hand instantly turns it into a colorful topographical map. Independent creator UncleStem has now recreated that experience in a much more compact and affordable form. By combining a $20… |
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PolyCast5 Combines Wi-Fi, LoRa, Bluetooth, IR, and ESP-NOW on an ESP32-C5 Platform If carrying a TV remote, a smart home controller, a password manager, a wireless keyboard, and a long-range IoT transmitter sounds excessive, the PolyCast5 aims to combine all of them into a single handheld device. Built around the ESP32-C5 microcontroller, the open-source gadget brings together five wireless technologies Infrared (IR), dual-band Wi-Fi, LoRa, Bluetooth 5.0/BLE, and ESP-… |
