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Built this tiny motion tracker with an ESP32-S3 and an LD2450 radar sensor. The blue pulse hits the target, the speaker pings, and the pitch rises as you get closer. Real tracking. Pocket-sized sci-fi. Would you carry one? #AlienRadar #MotionTracker #ESP32 #LD2450

Ubuntu Maniax

31,800 subscribers

303,800 次观看 • 21 天前 •via TikTok

科学技术 #alienradar #motiontracker #esp32 #ld2450

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25 Grams of Hardware. 4 Motors. One Flying ESP32-S3. ESP-FLY is a tiny DIY quadcopter built around the XIAO ESP32-S3. It uses an MPU6050 IMU for motion sensing, four coreless motors, and supports Wi-Fi and ESP-NOW for control. The interesting part is that the flight controller is programmable, so you can experiment with sensor fusion, attitude control, PWM motor control and wireless communication. About 25g with the battery, yet it can actually fly.

25 Grams of Hardware. 4 Motors. One Flying ESP32-S3. ESP-FLY is a tiny DIY quadcopter built around the XIAO ESP32-S3. It uses an MPU6050 IMU for motion sensing, four coreless motors, and supports Wi-Fi and ESP-NOW for control. The interesting part is that the flight controller is programmable, so you can experiment with sensor fusion, attitude control, PWM motor control and wireless communication. About 25g with the battery, yet it can actually fly.

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What If Your Phone Became the Screen for an ESP32-S3? Droidputter lets you plug an ESP32-S3 into an Android phone over USB-OTG and use the phone as its display, keyboard, GPS and firmware flasher. The ESP32-S3 still runs the application. The phone simply provides the missing hardware. The clever part is that Cardputer apps can be rebuilt with a display and keyboard shim, while pixel data is streamed over the ESP32-S3's native USB-CDC connection. The phone can then flash the firmware and mirror the app. You can even take an open-source Cardputer app from GitHub and build a phone-mirrored version on demand. It is a really interesting combination of ESP32-S3, USB-OTG, Android, PlatformIO and open-source apps. Would you build an ESP32-S3 device that uses your phone as its screen?

What If Your Phone Became the Screen for an ESP32-S3? Droidputter lets you plug an ESP32-S3 into an Android phone over USB-OTG and use the phone as its display, keyboard, GPS and firmware flasher. The ESP32-S3 still runs the application. The phone simply provides the missing hardware. The clever part is that Cardputer apps can be rebuilt with a display and keyboard shim, while pixel data is streamed over the ESP32-S3's native USB-CDC connection. The phone can then flash the firmware and mirror the app. You can even take an open-source Cardputer app from GitHub and build a phone-mirrored version on demand. It is a really interesting combination of ESP32-S3, USB-OTG, Android, PlatformIO and open-source apps. Would you build an ESP32-S3 device that uses your phone as its screen?

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Which ESP32 board should you buy in 2026? ESP32-C3 SuperMini: Small, affordable, and great for basic IoT projects. ESP32-S3 DevKitC-1: A strong all-rounder for displays, audio, USB projects & TinyML. Look for an 8MB PSRAM version. ESP32-C6 DevKitC-1: Great for Wi-Fi 6, BLE, Zigbee, and Thread-based IoT projects. ESP32-C5 DevKitC-1: Worth exploring if you need dual-band 2.4/5GHz Wi-Fi 6. ESP32-C61 DevKitC-1: Another option for Wi-Fi 6 and BLE projects. ESP32-P4: For advanced camera systems, multimedia & HMI projects. It needs a separate chip for wireless connectivity. My advice: check flash, PSRAM, GPIOs, USB support, and wireless requirements before buying. The chip name alone doesn't tell the whole story. Which ESP32 board would you add to this list?

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Who says microcontrollers are only for sensors and IoT? One developer used an ESP32-S3 to create an entire collection of interactive generative art, proving that embedded systems can be a creative medium too. The projects use Adafruit Qualia ESP32-S3 with a 2.1" round TFT display and an IMU for motion-based interaction, while the artwork is first prototyped in JavaScript and then ported to C++ and deployed with the Arduino IDE. Along the way, you will learn about computer graphics, embedded displays, animation, IMU sensors, generative art, optimization, and real-time rendering on resource-constrained hardware.

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for everyone who still doesn’t believe you can run local AI on an ESP32: here’s the same class of chip booting an entire operating system. Windows XP boot screen. welcome screen. the Bliss wallpaper. and, of course, an error dialog😁 we went from fitting a 28.9M-parameter language model into an ESP32-S3... to recreating the full Windows XP experience on a tiny 240×240 display. the era of "microcontrollers are only good for blinking LEDs" is over

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running nicely on ESP32-S3. next need to get a C3 for some more testing

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