ESP32
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This ESP32 Birdhouse Tracks a Sailor's Ship on an E-Paper Map and Prints Daily Notes Home Being away at sea for months makes even simple things like "where is he now?" hard to answer. Reddit user mrnks13, who is about to spend nearly four months on a ship from France to Singapore, built his girlfriend a small answer to that question. It is a wooden birdhouse with an ESP32 inside, a three-colour e-paper map that shows where his ship is, and a thermal printer on the roof that prints… |
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This ESP32-C6 Wall Frame Turns a 1993 Arcade Board Into a Fake AI That Answers Yes or No Reddit maker MrShatanas found four large old circuit boards in a garage and decided they were too good-looking to throw away. One of them is now a piece of sci-fi wall art: a 3D-printed frame packed with lights, a slow-motion fan and a pointer that answers YES or NO to your questions. A single Waveshare ESP32-C6 board with a built-in 1.47 inch LCD runs the whole thing. … |
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This ESP32-S3 Touchscreen Runs Its Own X11 Server, So Linux Apps Draw on It Over Wi-Fi If you want a small touchscreen as a Linux display, the usual choices are to build a whole Linux computer into it or treat it as a dumb remote framebuffer. Sergey Zorin took a third route. Woodland X11 is an experimental X Window System server that runs directly on an ESP32-S3, so ordinary Linux X11 programs open their windows on a cheap touchscreen. X11 written from the specification… |
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This DIY Home Assistant Remote Runs an ESP32-H2 Over Zigbee for About 4 Months a Charge A wall-mounted tablet can run the whole house, but sometimes you just want a button. Reddit maker Zweetkonijn built his own Home Assistant remote control with a custom PCB, a 3D-printed case that looks a lot like a Google TV remote, and an ESP32-H2 that talks Zigbee. Total material cost was about 40 euros, and the post passed 900 upvotes on r/homeassistant in half a day. Why the ESP32-H2… |
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This ESP32-C3 Clock Projects the Time on the Ceiling With Just an OLED and a 50 mm Lens Most bedside clocks are either too bright to sleep next to or too dim to read. Reddit maker udota wanted a soft white clock that does not light up the whole nightstand, so he skipped the LEDs entirely. His build throws the time onto the ceiling using nothing more than a 1.3 inch OLED, an ESP32-C3 and a single glass lens. The OLED is the light sourceCommercial projector clocks usually… |
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This Open-Source ESP32-S3 Stepper Driver Cut Joint Error From 0.065 to 0.014 Degrees A stepper motor can reach its target while the robot joint it drives is still in the wrong place. That gap comes from backlash in the gearbox, and it is the reason cheap 3D-printed robot arms feel sloppy. Arctos Robotics, the maker behind the open-source Arctos arm, built CLMD, an open-source ESP32-S3 stepper driver that reads a second encoder right at the gearbox output and corrects the joint… |
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This 1986 Apple II Monitor Is Now a Live Flight Tracker, Driven by an ESP32 and Two Wires Most people who want a flight tracker on a desk reach for a Raspberry Pi and an HDMI screen. Reddit maker Virtual-Bet-4566 went the other way: a 1986 Apple II monochrome monitor, a classic ESP32-WROOM-32 and exactly two wires. The green phosphor CRT now shows a live radar view of the aircraft overhead, and no video converter sits in between. Composite video straight from a DAC pinThe… |
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Sesame Drone: This 264 g ESP32 Quadruped Folds Its Legs Into Propellers and Flies Earlier this year we covered Sesame, an open-source ESP32 quadruped you can build for about $50 to $60. Its maker, Dorian Todd, has now made it fly. Sesame Drone walks somewhere, folds its legs out flat into propeller arms, takes off, lands and walks away again. Two brains with no link between them The robot is really two machines sharing one 2S LiPo.… |
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Getting Started with ESP32-P4X-EYE: ESP32-P4 Vision Development Board Vision development boards are useful when an embedded project needs to combine image capture, local display, audio input, storage and wireless connectivity in a single platform. The ESP32-P4X-EYE takes this approach around the ESP32-P4, adding an ESP32-C6 wireless module, a 2MP MIPI-CSI camera, a 1.54-inch SPI LCD, a digital microphone, MicroSD storage, USB… |
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Getting Started with M5Stack Tab5: ESP32-P4 Touchscreen Development Board Large touchscreen development boards are useful when a project needs more than a microcontroller and a few expansion pins. A display, camera, audio system, wireless connectivity, storage and industrial interfaces can turn the development board itself into the starting point for a complete embedded product. The M5Stack Tab5 takes this approach with a 5-inch 1280 × 720… |
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One Custom PCB, Two Faces: Click-Wheel Music Player and GBA Emulator on ESP32-S3 Most ESP32 handhelds pick one job. Reddit maker leetcodedemon built both: a click-wheel music player on one face and a Game Boy Advance emulator on the other, sharing one custom 4-layer PCB and a screen that physically swivels. Hall sensors tell the firmware which side is up. The build is still a prototype, but the demo video and the ~176 upvotes on r/esp32 show how far a careful board layout… |
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A Spare ST7735 and an ESP32 Became a From-Scratch Game Boy That Runs Pokemon A leftover LCD does not have to stay in the parts drawer. Reddit maker Engineeroids turned a spare ST7735 and an ESP32 DevKit V1 into a from-scratch Game Boy emulator handheld that runs Pokemon, Zelda, Tetris and Contra. The post drew about 650 upvotes on r/esp32, and Hackster followed with a write-up on 5 Nov. Everything sits on a 7x9 cm perfboard: screen, analog joystick, two buttons and the… |
