Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
embedXcode - embedXcode is a template for Xcode.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
InstaPart - Build circuit boards faster with parts delivered in <24 hrs
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.