Not sure where to start, need a gift or just want to experiment with microcontrollers. This range of sensors will provide endless possibilities to experiment and create.
Here's what you can measure:
Acceleration, magnetism, tilt, vibration, infrared remote signals, temperature, force, light, flex and why not make some sound with a buzzer as well. That's a lot of things!
- Triple Axis Accelerometer Breakout - MMA8452Q - Senses acceleration along all three axes, with a range of up to ±3g. Fully analogue interface.
- Hall Effect Sensor - Holding a magnet near this sensor will cause the output pin to toggle. This makes for a robust presence sensor.
- Tilt Sensor - A simple AT407 basic tilt switch that can easily be used to detect orientation on your project.
- Piezo Element - These two Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output.
- Insulated Reed Switch - Senses magnetic fields, makes for a great non-contact switch.
- IR Receiver Diode - The TSOP382 is a miniaturized receiver for infrared remote control systems.
- Infrared LED - This is a very simple, clear infrared LED. These devices operate between 940-950nm and work well for generic IR systems.
- TMP36 - Temperature Sensor - The TMP36 is a low voltage, precision centigrade temperature sensor. It provides a voltage output that is linearly proportional to the Celsius temperature.
- Trimpot 10K with Knob - This 10K trimmable potentiometer has a small knob built right in and it’s breadboard friendly to boot!
- 0.25" Magnet Square - Plays nicely with the reed switch. Embed the magnet into stuffed animals or inside a box to create a hidden actuator to the reed switch.
- 0.5" Force Sensitive Resistor - A force sensing resistor with a 0.5" diameter sensing area. Great for sensing pressure (SparkFun.e. if it’s being squeezed).
- Mini Photocell - The photocell will vary its resistance based on how much light it’s exposed to. Will vary from 1kΩ in the light to 10kΩ in the dark.
- Flex Sensor - As the sensor is flexed, the resistance across the sensor increases. Useful for sensing motion or positioning
- Piezo Buzzer/Speaker - This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.
- Resistor 1.0M Ohm 1/6 Watt PTH - Two 1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards