To allow for identification, resistors are usually marked with colored bands. Often referred to as color codes, these markings are indicative of their resistance, tolerance, and temperature coefficient. gResistror is a great program that will help you translate resistor color codes into a readable value. All you have to do is watch the colors on the resistor and then enter them in the program. As you enter, you'll see that the resistor value is changing according to the selected color.
JTAGTest is an IEEE 1149.1 JTAG Boundary scan tester for embedded designers, production houses, and service companies. It provides a significant aid for PCB debugging, prototyping, testing, and repairing. Using an IEEE 1149.1 (JTAG) boundary-scan, the device pin signals or internal signals can be monitored in real-time without interfering with normal device operation, and you can change pin state manually. It runs under Wine on 32-bit Linux distributions using special Linux support libraries, which are included in the distribution.
UrJTAG aims to create an enhanced, modern tool for communicating over JTAG with flash chips, CPUs, and many more. It takes on the well proven openwince jtag tools code. Future plans include conversion of the code base into a library that can be used with other applications. A flexible remote communication protocol that can be used over almost any type of serial link (including TCP/IP) is currently being defined.
Liquid PCB is a computer aided design application for designing printed circuit boards. Unlike other PCB CAD applications, you are not restricted to straight tracks and 45º angles. Instead, you can freely draw tracks any way you like, and the tracks themselves will move and bend as required to maintain your design rules. Vias and components are also free to move and rotate. The user interface exposes all functions through the multi-directional expanding mouse menu and the keyboard instead of through icons and menus.
Resistors is a program to calculate the most suitable E-series resistors for voltage dividers or for generating other values by putting two resistors in parallel. It is especially useful for selecting resistor values for the voltage dividers used in variable voltage regulators. In effect, the voltage in the middle of the divider is known, and you want to achieve a regulated voltage (the top value).
JSDAI is a toolkit around STEP or ISO 10303, the STandard for the Exchange of Product model data. It supports the Express data modelling language as defined in ISO 10303-11 and provides data exchange capabilities according to ISO 10303-21 STEP-file and ISO 10303-28 STEP-XML. JSDAI Runtime is an API according ISO 10303-22, the Standard Data Access Interface (SDAI) for the Java programming language, ISO 10303-27. JSDAI Developer is for the development of Express data models, including Express-G diagrams.