The Attiny85 is a nice little 8 pin chip which is ideal for simple projects, they are low cost and if you have an Arduino you can actually burn the bootloader and upload your sketches to the microcontroller, this is …

The TMP35, TMP36, and TMP37 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (Centigrade) temperature. The TMP35/TMP36/TMP37 do not require any external calibration to provide typical accuracies of ±1°C …

In previous examples we have had various temperature sensors, most of these will display the humidity and the temperature in celsius but it is easy with a few calculations to add support for other useful data these should be self …

The L3GD20 is a low-power three-axis angular rate sensor. This is the module I bought for reference Key Features Three selectable full scales (250/500/2000 dps) I2 C/SPI digital output interface 16 bit-rate value data output 8-bit temperature data output Two …

The ADS1015 is a precision analog-to-digital converters (ADCs) with 12 bits of resolution offered in an ultra-small, leadless QFN-10 package or an MSOP-10 package. The ADS1015 are designed with precision, power, and ease of implementation in mind. The ADS1015 features an …

  The ADXL345 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or …

The NXP® MMA8451Q is a low-power, three-axis capacitive accelerometer with 14 bits of resolution, featuring: Embedded functions with flexible user-programmable options, configurable to two interrupt pins Embedded interrupt functions for overall power savings relieving the host processor from continuously polling …

This is a simple example for an RF transmitter and reciever, these come in a couple of flavours the pair I had  operate at 315Mhz. These modules are readily available and look like this Specs RF  Receiver 1. Product Model: MX-05V 2. …

This shows how to add ethernet support to an Arduino using a Wiznet 5100 module, this is similar to the Ethernet shield that is commonly used but this module is a little bit more compact which may be an advantage …

A rotary encoder, also called a shaft encoder, is an electro-mechanical device that converts the angular position or motion of a shaft or axle to an analog or digital code. There are two main types: absolute and incremental (relative). The …

The Si4702/03 integrates the complete tuner function from antenna input to stereo audio output for FM broadcast radio reception The Si4703-C incorporates a digital processor for the European Radio Data System (RDS) and the US Radio Broadcast Data System (RBDS) …

The TCS3200 and TCS3210 programmable color light-to-frequency converters that combine configurable silicon photodiodes and a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave (50% duty cycle) with frequency directly proportional to light intensity …