DIY Workshop Air Quality Monitor with the Particle Photon 2 and Grafana
Step-by-step guide to building a COâ‚‚, temperature, and humidity monitor using the Particle Photon 2, with sensor selection tips and a Grafana dashboard setup.
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How to Use a Drone-Mounted BLE Scanner for Search and Rescue (DIY and Off-the-Shelf Options)
BLE-equipped drones can detect smartphones, wearables, and medical devices on missing persons. Covers commercial options like BlueFly and a Raspberry Pi DIY build.
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What Makers Are Actually Building: DIY IoT and Electronics Projects Worth Knowing About
From cellular weather stations to custom PCBs, here’s what the maker and IoT community is shipping right now — plus the practical lessons learned along the way.
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KiComp: Managing JLCPCB Components in KiCad with a Terminal UI
KiComp wraps JLC2KiCad_lib in a terminal UI to download JLCPCB parts and organise multiple KiCad symbol, footprint, and 3D model libraries from the command line.
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Ford Ranger EV on eBay: What You’re Actually Buying and How to Fix It
The Ford Ranger EV is a factory-built OEM electric truck from 1998–2002. Here’s what surviving units need, how battery options break down, and what to check before pulling the trigger.
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Building a Soft-Patchable Synth on Teensy 4.1 with Dynamic Audio Objects
How one maker used Teensy 4.1 Dynamic Audio Objects to build a live-patchable synthesizer where voices are created and destroyed at runtime for real polyphony.
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PCB Via Fencing in KiCad: Using the ViaFence Plugin and Getting the Spacing Right
Via fencing reduces PCB crosstalk and tightens return-current loops. Here’s how the new zero-dependency ViaFence KiCad plugin works and what spacing to use.
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Drone BLE Scanning for Search and Rescue: Commercial Hardware, DIY Raspberry Pi Builds, and Real-World Tradeoffs
A drone flying a grid pattern while logging Bluetooth Low Energy signals can meaningfully narrow a search area. Here’s how aerial BLE detection works, what commercial products now exist, and how to build your own with a Raspberry Pi.
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MiniTouch 2nd Edition: Four Envelopes, Ten World Scales, and $35
A breakdown of the MiniTouch 2’s synthesis engine, capacitive keyboard, and Ctrlr preset editor — four ADSR envelopes, ten world scales, all for $35.
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LCDSmartie on a PCIe Parallel Port Card with VFD: 64-bit Windows Fix
Getting LCDSmartie to drive a VFD via a PCIe LPT card on 64-bit Windows needs two fixes most guides miss: the real I/O address from Device Manager and the right InpOut driver build.