The kit includes a variety of sensors:
The Triple Axis Accelerometer Breakout - LIS3DH, capable of sensing acceleration along all three axes, with a range of up to ±3g. It features a fully analog interface.
The Hall Effect Sensor, which toggles the output pin when a magnet is held near it, making for a robust presence sensor.
The Tilt Sensor - A simple AT407 basic tilt switch that can easily be used to detect orientation.
The Piezo Element, useful when you need to detect vibration or a knock. These can be used for tap or knock sensors by reading the voltage on the output.
The Insulated Reed Switch, a great non-contact switch that senses magnetic fields.
The IR Receiver Diode - The TSOP382, a miniaturized receiver for infrared remote control systems.
The Infrared LED, a simple, clear infrared LED that operates between 940-950nm and works well for generic IR systems.
The TMP36 - Temperature Sensor, a low voltage, precision centigrade temperature sensor that provides a voltage output linearly proportional to the Celsius temperature.
The Trimpot 10K with Knob, a 10K trimmable potentiometer with a small built-in knob that's breadboard friendly.
The 6.35mm Magnet Square, which works well with the reed switch. You can embed the magnet into stuffed animals or inside a box to create a hidden actuator for the reed switch.
The 12.7mm Force Sensitive Resistor, a force sensing resistor with a 12.7mm diameter sensing area, great for sensing pressure.
The Mini Photocell, which varies its resistance based on how much light it's exposed to, ranging from 1kΩ in the light to 10kΩ in the dark.
The Flex Sensor, a sensor that increases resistance as it is flexed, useful for sensing motion or positioning.
The Piezo Buzzer/Speaker, a small 12mm round speaker that operates around the audible 2kHz range, perfect for creating simple music or user interfaces.
The Resistor 1.0M Ohm 1/6 Watt PTH, two 1/6th Watt, +/- 5% tolerance PTH resistors, commonly used in breadboards and perf boards.
This kit is not just a collection of sensors but a gateway to a world of electronic exploration. Whether you're a beginner just starting out or an experienced programmer looking for a new challenge, the SparkFun Essential Sensor Kit V2 has something for everyone.