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OpenELAB

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What happens when @northworkslab and @sudo_solder team up to build a radar project? Exactly: this! Each room has its own radar sensor that detects every movement. The incorrect points are where the radar signals overlap. There’s still room for improvement, but it’s a perfectly acceptable version for a start!
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Finally, true 360-degree horizontal surveillance! I was confident in my radar project, but the 60-degree blind spot kept bothering me. So I mounted a second LiDAR horizontally, removed the rear radar, and thus achieved 8-meter frontal radar coverage plus 12-meter 360-degree surveillance. You can still see through walls, and the 3D map is expanded to a diameter of 50 meters by the LiDAR.
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NO PAID ADD! I barely promote things, but the Elements Tech Case Max from @alpakagear is something I want to show you. It’s small, good quality and all my devices fit inside. If one of you is looking for a real good bag try this out. And yes: I promote it because I was searching for something like this for a long time.
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Track intruders before they spot you. Some of you have pointed out errors in the radar GUI. I’ve taken your suggestions into account and implemented them. As you can now see, this is the correct display of the radar.
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Built something with M5Stack? Come share the story behind it. @openelab_io and @m5stack are bringing the M5 Fans Meetup to @makerfairesalzburg . Hear what fellow makers are building, catch a talk from the M5Stack team, and meet the people behind the projects. We’re looking for two makers to give short project talks. Finished build or work in progress, we’d love to hear about it. If you’re interested in speaking, add a brief project description when you register. Coming to listen and connect? You’re welcome too. Everyone attending needs to register. November 7, 2026 · 12:00–13:30 Maker Salon, Maker Faire Salzburg Register here: https://openelab.io/pages/exhibitions #M5Stack #OpenELAB #makerfaire #MakerFaireSalzburg #MakerCommunity
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360-degree real-world test completed! Two radar sensors offset by 180 degrees and shielded with metal plates produce virtually no interference. There is a small blind spot, which I may be able to eliminate through interpolation if necessary. The ESP32’s transmission power is simply outstanding—virtually lossless. The motion detection and proximity alarm work flawlessly. Big thanks for the inspiration @_maik.held @davidkarnowski
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A simple radar sensor connected via Wi-Fi to a display that detects movement through doors and provides an early warning. All powered by an ESP32 and an Arduino display. Easy to build yourself: Check out my GitHub
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What began a few months ago as a weekend project has evolved in ways I never imagined within just a few months. It started with a simple ESP32-based radar system. Then came the transition to Linux. Next, a LiDAR sensor and a thermal camera were added to the radar module. This integration sparked the idea of converting 2D data into 3D to create a complete surveillance system. First try with a robot was to tricky so I changed the rotating basis to a 360 servomotor with constant feedback.
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Do you like the stuff I build? Check my profile I have some more! Being alone in a forest is scary. But not if you have this surveillance system with you. You can track any movement around you. They can’t hide and you see them first. All performed with an esp32, some sensors and a uconsole for remote surveillance.
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I’m currently building a DIY 3D LiDAR and radar scanner. Big thanks to @northworkslab and @openelab_io for the support and inspiration. You guys rock!! The setup uses an STL-27L LiDAR mounted vertically together with an RD-03D 24 GHz radar. Both rotate on a DYNAMIXEL XL430, so I can combine the sensor data with the exact rotation angle. One of the biggest challenges is timing. Every LiDAR point and radar detection needs to match the position of the scanner at that exact moment. Otherwise the whole map starts to shift or distort. An ESP32-S3 handles the sensors and rotation control, while the software combines the data into a live 3D view. LiDAR gives me the structure of the room, radar adds information about moving targets, and the servo tells me where the sensors were pointing when the measurement happened. Still a lot to improve, but that’s the interesting part. Most of this project is testing, finding problems, changing things and testing again. The end goal is a compact system that combines LiDAR, radar and position data into one synchronized view of its surroundings.
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Timestamp is the key. I’m currently building a mobile sensor-fusion robot combining LiDAR, radar and IMU data for real-time mapping. Precise time synchronization keeps every measurement aligned while the robot is moving, allowing motion compensation, persistent mapping and cleaner sensor fusion. Inspired by my dude @northworkslab I gonna add in part 2 a much more precise LIDAR. Stay tuned! The goal: one compact platform for mapping, localization and live environmental awareness.
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The Seeed Studio Wio Tracker L1 Pro is a compact GPS and LoRa device built for off-grid communication and tracking. Running Meshtastic, with built-in GPS, OLED display, joystick controls and an RP-SMA antenna connection, it’s a seriously interesting bit of kit for anyone into LoRa, mesh networks, GPS tracking and outdoor communications. In this Short, I’m taking a quick look at the Wio Tracker L1 Pro and showing where you can get one from OpenELAB. About OpenELAB OpenELAB is an AIoT platform for makers and developers, offering hardware, project resources, and technical support. OpenELAB Homepage: https://openelab.io/ Explore the OpenELAB AIoT Ecosystem: https://openelab.io/pages/ecosystems Wio Tracker L1 Pro at OpenELAB: https://openelab.io/products/seeed-studio-wio-l1-pro?sca_ref=11959917.YYlGlZSYbly Wio Tracker L1 Pro at Seeed Studio: https://www.seeedstudio.com/Wio-Tracker-L1-Pro-p-6454.html?utm_source=KOL&utm_medium=NobulTech Watch the full review on Nobul Tech for a more detailed look at the hardware, setup and real-world performance. https://youtu.be/6h7-RfjPqdk #Meshtastic #LoRa #WioTrackerL1Pro #SeeedStudio #GPS OffGrid NobulTech
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