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Author: Mostly Builds
Retro Smart Speaker V2: Now Open Source
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A little while ago, I built a 3D-printed retro smart speaker that supports Wi-Fi audio streaming, Bluetooth playback, and local playback from a microSD card. For the original release, I published the 3D models (V1) for the enclosure, but I held back the custom PCB design and firmware while I…
Retro Smart Speaker Build
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I recently built a 3D printed smart speaker with a retro radio-inspired design. It supports streaming audio, Bluetooth playback, and local audio playback from a microSD card. The original idea for this project came from a previous build where I put together a police radio decoding pipeline that streams audio…
ESP32 + SPI Capacitive Touchscreen Tutorial
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It wasn’t long ago that capacitive touchscreens were completely out of reach for hobbyists. Cheap resistive touchscreens have been available for a while, but can be a bit finicky to use. Finally, inexpensive capacitive touchscreens have arrived, and they are awesome. Let’s take a look at the 2.8-inch 240×320 IPS…
Meshtastic MagSafe Case
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The Case Build I recently built a MagSafe case for a RAK Wireless board running Meshtastic. It uses an integrated magnet array to attach to the back of a compatible phone. If you aren’t familiar with Meshtastic, it’s a peer-to-peer wireless project that lets devices join a local mesh network.…
Hanging Pulleys From Trees
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Pulleys In Trees? Ever since I started getting into ham radio, the dream has always been to make contact with people across the globe. It should be easy, right? Get licensed, buy the equipment, and you’re good to go—right? Well… kind of. I knew I wanted the biggest dipole antenna…
Gearwrench Torque Wrench Review
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I recently picked up this Gearwrench digital 3/8 torque wrench(Amazon). It has a torque range of 10 to 100 ft lbs, and supports changing the display to your preferred units. I finally replaced my click-type wrench from Harbor Freight, which failed me for the last time (stripped the threads on…
Microphone Activator Series
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Anyone who has dipped their toe in the world of above-average audio has almost certainly come across a microphone preamp (aka mic activator). These devices are often recommended to people using quiet microphones, such as the legendary Shure SM7B(Amazon). The Cloudlifter CL-1(Amazon) occupies the top spot as the most sought-after…
Tuff Torq K46 Oil Fill Mod Series
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The hydro pump in my K46 (T40J) transaxle failed, leaving my John Deere D130 dead in its tracks! Follow my journey as I rebuild the pump and modify the transaxle to support oil changes without having to remove the trans from the mower. Disclaimer: Pretty much everything that is covered…