Mark ZachmanninHome WirelessA Cheap Electronically Controllable DC SupplyThis story describes how to convert a manually set DC supply to one you can set remotely or by computer.3 min read·Mar 10, 2024----
Mark ZachmanninHome WirelessHow to run CamillaDSP with Multiple DACsI use two 4-channel DACs working together with CamillaDSP to provide 6 active speaker channels. Here’s what I do to get it working in…5 min read·Jan 26, 2024--2--2
Mark ZachmanninHome WirelessAdd a Silent Fan to your Raspberry Pi 4I’ve been trying to move from a Mac Mini to a Raspberry Pi for my living room audio for a year and finally was able to get a Pi 4B retail…5 min read·Aug 27, 2023----
Mark ZachmanninHome WirelessComparing the Dayton Audio DSP408 and Minidsp 2x4The DSP408 and Minidsp 2x4 are compact A/D-CPU-D/A units designed to be active crossover appliances with room correction. These are both…4 min read·Jun 16, 2023----
Mark ZachmanninHome WirelessUsing CamillaDsp with a Motu-M4 as a CrossoverTraditionally, loudspeakers have internal passive crossovers to funnel highs to tweeters and lows to woofers. This article is about using a…10 min read·May 10, 2023----
Mark ZachmanninHome WirelessThe Arylic Audio Pro 50+The Arylic Up2stream S50 Pro+ is a high-def high-feature version of a Chromecast Audio (discontinued a few years ago). Since we now spend…2 min read·Mar 14, 2023----
Mark ZachmanninHome WirelessMake a USB Charger and Current TesterYou can make any project portable with this LiPo battery charger and USB test circuit. The USB circuit provides a passthrough of the USB…3 min read·Jan 21, 2023----
Mark ZachmanninHome WirelessMake a serial bootloader for the STM32WL (Lora-E5) using Zephyr and MCUBootOnce my latest Zephyr project was in a box it became critical to have an update process that didn’t require connection to the debug port…6 min read·Jan 4, 2023----
Mark ZachmanninHome WirelessAdd a LiPo Battery Charger to the Wio-E5 MiniThe Wio-E5 Mini from Seeed Studio is a compact usb/battery-driven LoRa-E5 board but there’s no battery charging option so here’s how to add…2 min read·Nov 2, 2022----
Mark ZachmanninHome WirelessA LoRa PingPong for the STM32WLE5 (LoRa-E5 Part 4)After setting up the development environment it’s time to write and test a simple LoRa PingPong application — something that sends and…1 min read·Oct 18, 2022----
