To control a lot of components, especially motors, physical devices or bright LEDs, you typically need to accommodate more current than your typical microcontroller can provide. Eric Wolf wrote a nice introduction for using transistors as a current amplifier to solve this common scenario. In regard to current capability, generally speaking, most microcontrollers will only […]
The latest piece on uC Hobby explains how-to use low-amperage microcontroller signals to control high-current devices. Among other things, it explains how to use transistors to get from the logic of a MCU to the power needs of a motor. uC Meets BJT – [via] Link
Pavs sent in a link to a program for Windows XP called Security Cloak, which can be used to tweak your machine’s TCP/IP fingerprint to look like something else: Security Cloak is designed to protect against TCP/IP stack fingerprinting and computer identification/information leakage via timestamp and window options by modifying relevant registry keys. The settings […]
Here’s a great Garmin quick-release mount with MintyBoost charger mod, John writes – The aim of this tutorial is to explain how I modified my Garmin quick-release bike mount (for the Forerunner x05) so that it can be used as a charging cradle. This allows the GPS unit to be used on long cycles/triathlons such […]
Erica Sadun at TUAW posted a slick reference for getting the Dropbear SSH server running on the iPhone: Over at the #iphone channel at irc.osx86.hu, the thoroughly awesome NerveGas has figured out how to enable ssh on the iPhone without using restore mode. The secret lies in overwriting an existing binary and plist to trick […]
EMS Labs has a nice little rundown of five tools you might not know about, but that can come in very handy in your day-to-day electronics work. A fellow DC Dorkbot-er, David Rickert, who’s currently building his own analog synth, hipped me to the Lead Forming Tool (top) at the latest Dorkbot DC BEAM Building […]
This enterprising stargazer figured out how to control his Orion Atlas EQG telescope mount with a Wii controller. Fun with an Atlas. Video inside. – Link
