The AA boost Module is DFrobot's exclusive product. One of its key features is solving the 5V battery power supply problem. As we all know, one AA battery is 1.5V , with two or three you still cannot get 5V. Now with this AA boost module, insert two dry batteries, flip the power switch, and you have a 5V output to power your circuit. Two AA batteries will be enough to reach standard 5V easily and convenient to use, which also provides a more simple supply scheme to Arduino sensors and controllers.

This AA boost module integrates with the boost chip TPS61032 from TI that is capable of outputing 5V@1A with input over 1.8V. The only difference between V1 and V2 is changing the output current from 2A to 1A.

This arduino Slide Position Sensor is based on straight-slip slide potentiometer sensor. The sensor is able to give provide the position of the slider which is often considered as a linear potentiometer .

This is the SparkFun RJ45 MagJack Breakout, a simple board that will provide you with a way to put an ethernet port into your breadboard.

This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, small, panel-mount latching switch with an illuminated green LED ring. It is a SPDT with 16mm threading and 1mm pitch. This button is perfect for basic On/Off functions. Overall length (including leads) is 1.5" and has small solder lugs for connection. These latched buttons are rated up to 3A and 250VAC while the LED is rated for 5-12V.

This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, small, panel-mount latching switch with an illuminated yellow LED ring. It is a SPDT with 16mm threading and 1mm pitch. This button is perfect for basic On/Off functions. Overall length (including leads) is 1.5" and has small solder lugs for connection. These latched buttons are rated up to 3A and 250VAC while the LED is rated for 5-12V.