Tech Apr 29, 2026 10 min Why 74HC595 Seven-Segment Displays Flicker and How QUAD7SHIFT Handles the Latch Boundary Flicker and ghosting on 74HC595-based seven-segment displays often come from latch boundary placement rather than power issues. A look at how QUAD7SHIFT's 16-bit atomic update avoids the problem. Hardware Open Source Arduino Microcontroller Electronics
Tech Apr 8, 2026 updated 12 min Reverse-Engineering the HP Sprocket 200 BLE Protocol to Print from a PC I reverse-engineered the HP Sprocket 200's proprietary BLE protocol (HPLPP) and successfully printed directly from a PC using a Python script. Bluetooth BLE Hardware Python Reverse Engineering
Tech Mar 15, 2026 updated 7 min Controlling the "Mini Printer Sugar" Bluetooth Mini Printer from a PC Researching and testing how to directly control a smartphone-only Bluetooth thermal mini printer from a PC. Bluetooth BLE Hardware Python Experiment
Tech Jan 14, 2026 4 min Hardware requirements to run Qwen-Image-Edit-2511 locally Recommended specs to run a 20B-parameter image editing AI model on Windows/Mac AI Image Generation Hardware
