This sealed Digital Temperature Sensor DS18B20 1 meter probe lets you precisely measure temperatures in wet environments with a simple 1-Wire interface. The DS18B20 provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor.
Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find that they need to perform level shifting/conversion to protect the 3.3V device from 5V.
These are the smallest NeoPixel breakouts around! Tiny, bright RGB pixels to your project. These little PCBs are only 8mm x 10mm and have two sets of three pads on the back for soldering wires. These ultra-bright LEDs have a constant-current driver cooked right into the LED package! The pixels are chainable - so you only need 1 pin/wire to...
This Voltage Regulator has an input voltage between 4 - 40V and output between 1.25 - 37V with a current of max 2Amps. The Voltmeter range is between 0 and 40V with an error of 0.1V. It has an input reverse polarity and output short protect function. For overheating, it has a thermal shutdown function too.