This is the SparkFun MiniGen Signal Generator, a small shield for the Arduino Pro Mini that is capable of generating sine, square, or triangle waves at up to 3MHz, and approximately 1Vp-p. Though the MiniGen is technically a shield it can, in fact, operate as a stand-alone board capable of the the same functionality as it would if it were placed on top of a Pro Mini.
The MiniGen offers two out put sources for you to utilize: a 2-pin 0.1" spaced header and a u.FL connector. The output is at a DC offset of Vcc/2, however neither the offset nor the amplitude can be varied. By default, the MiniGen ships configured with a 3.3V regulator enabled and should only be used with 3.3V signals (or 3.3V Pro Minis if you are using this as a shield) unless the jumper on the back is soldered over to bypass the regulator for 5V use.
Resistors are a good thing, in fact, they're actually crucial in a lot of circuit...
These are 6" long jumper wires with female connectors on both ends. Use these to...
These are 6" long jumper wires with male connectors on both ends. Use these to...
A row of headers - break to fit. 40 pins that can be cut to...