The PIR Sensor detects motion up to 20 feet away by using a Fresnel lens and infrared-sensitive element to detect changing patterns of passive infrared emitted by objects in its vicinity.
Price: US$10.95
The PWMPAL is an intelligent peripheral that adds up to four PWM output channels and up to four control/counter input channels to the BASIC Stamp microcontroller.
Price: US$34.95
The Stache is a The Stache is a palm-size module for loading up to 15 PBASIC programs into any 24-pin BASIC StampĀ® 2 Module under field conditions.
Price: US$119.95
The TSL230R programmable light-to-frequency converter combines a configurable silicon photodiode and a current-to-frequency converter on single monolithic CMOS integrated circuits.
Price: US$5.95