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Ccircuitrockscircuitrocks.hashnode.dev11h ago · 3 min read

Walnut-Shell IR Remote Built on a XIAO ESP32-C3 and Wi-Fi

Makers keep hiding microcontrollers inside everyday objects: a lamp shaped like a book, a speaker inside a lunchbox, a smart plug that looks like a wall socket. The trend rewards one skill above all,

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Ccircuitrockscircuitrocks.hashnode.dev16h ago · 2 min read

DIY Brain-Computer Interface: 8-Channel EEG on an ESP32

Treat a brain-computer interface as a weekend project and it stops sounding like lab equipment. Carlos Lorenzo-Zúñiga Marí built an eight-channel EEG headset for under $350 (roughly PHP 20,000), and t

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Ccircuitrockscircuitrocks.hashnode.dev1d ago · 2 min read

KryonOS Turns Your ESP32 Into a Tiny JavaScript Desktop

Picture the usual ESP32 routine. You write firmware, flash it over USB, and the board becomes a weather station forever. Want it to do something else? Rebuild, reflash, wait for the upload bar. After

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Ccircuitrockscircuitrocks.hashnode.dev1d ago · 2 min read

ESP32 AI Voice Assistant With Animated OLED Eyes (Whisper + GPT)

Can an ESP32 hold a spoken conversation with a cloud AI and still keep its animated eyes blinking smoothly? Yes, and maker jayesh_nawani shows how. The build, covered by Open Electronics and spotted o

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OHOmar Hiariblog.theembeddedrustacean.com3d ago · 21 min read

Embedded Rust BSPs with uFerris & Xiao: RTC Support with I2C

This is the eighth post in the µFerris & Xiao BSP series, where we build a Board Support Package from scratch, one peripheral at a time. In the previous post, we added the I2C bus. This post adds the

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Ccircuitrockscircuitrocks.hashnode.dev4d ago · 3 min read

Hide an ESP32-C3 IR Blaster Inside a Walnut for Smart Home Control

Want a smart-home gadget that nobody notices sitting on the shelf? Grab an ESP32-C3 dev board, two or three IR LEDs, a 100-ohm resistor, a pair of small neodymium magnets, and an empty walnut shell. T

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KPKevin Panyoyouv.hashnode.dev4d ago · 7 min read

Designing a Fail-Safe ESP32 Controller for a Flow-Through UVC LED System

ESP32 UVC LED Controller Architecture An ESP32, a flow sensor, a temperature sensor, and a UVC LED driver sound like the ingredients for a fairly simple embedded project. On paper, the logic is straig

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Ccircuitrockscircuitrocks.hashnode.dev4d ago · 3 min read

IronEar's ESP32-S3 Sensor Hears 500 Sounds, Skips the Camera

A camera watching your backyard only sees what's in its cone of view, and every camera you bolt on is another privacy trade-off. IronEar takes the opposite bet: three tiny microphones and a neural net

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Ccircuitrockscircuitrocks.hashnode.devSep 25 · 2 min read

CircuitPython 11.0.0-alpha.1 Adds RP2350 Sleep Alarms

Grab whatever RP2350 board is sitting in your parts drawer — Adafruit shipped CircuitPython 11.0.0-alpha.1 on September 24, and it's a solid weekend flash if you've been putting off the jump from the

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Ccircuitrockscircuitrocks.hashnode.devSep 24 · 2 min read

Off-Grid LoRa Message Board Pairs ESP32-S3 with E-Ink Display

Power flickers out, the WiFi router goes dark, and the group chat dies with it. A small radio mesh keeps running for weeks on a single battery anyway. That's the itch the MeshFruit project scratches:

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#esp32

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Trending tags this week

Walnut-Shell IR Remote Built on a XIAO ESP32-C3 and Wi-Fi

DIY Brain-Computer Interface: 8-Channel EEG on an ESP32

KryonOS Turns Your ESP32 Into a Tiny JavaScript Desktop

ESP32 AI Voice Assistant With Animated OLED Eyes (Whisper + GPT)

Embedded Rust BSPs with uFerris & Xiao: RTC Support with I2C

Hide an ESP32-C3 IR Blaster Inside a Walnut for Smart Home Control

Designing a Fail-Safe ESP32 Controller for a Flow-Through UVC LED System

IronEar's ESP32-S3 Sensor Hears 500 Sounds, Skips the Camera

CircuitPython 11.0.0-alpha.1 Adds RP2350 Sleep Alarms

Off-Grid LoRa Message Board Pairs ESP32-S3 with E-Ink Display