SHT31 is the next generation of Sensirion’s temperature and humidity sensors. It builds on a new CMOSens® sensor chip that is at the heart of Sensirion’s new humidity and temperature platform. The SHT3x-DIS has increased intelligence, reliability and improved accuracy specifications compared to its predecessor. Its…
In this example we will use the MCP3008 to help us read the value of an LDR, as you will know the Raspberry Pi has no analogue input which can be a bit of a hassle considering there are a few sensors that requires this The Microchip…
The MLX90614 is a non-contact infrared thermometer with a measurement range from -70 to +380 degree Celsius. Just connect the four leads to your Arduino and you will have a accurate thermometer with a resolution of 0.01 and a accuracy of 0.5 degrees, or for…
The BH1750FVI is an digital Ambient Light Sensor IC for I2C bus interface. This IC is the most suitable to obtain the ambient light data for adjusting LCD and Keypad backlight power of Mobile phone. It is possible to detect wide range at High resolution.…
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 onboard reference and oscillator. Data…
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 I2C digital interface. The ADXL345 is…
One of the frustrating things about the Raspberry PI is the lack of any analogue inputs, this means there are a number of sensors that are commonly used that cannot be used quite so easily on a Raspberry PI. Examples of these are light dependent…
This is a follow on from the Raspberry PI and python example – http://www.pibits.net/code/raspberry-pi-and-74hc595-python-example.php This example uses wiringPi Schematic Code This example is C++, it will flash an LED one at a time connected to the 74HC595 Call this shift.c [codesyntax lang=”cpp”] #include <wiringPi.h> #include <stdio.h>…
In this example we connect a PIR module up to our Raspberry PI, this is quite a simple module to connect as it requires only 5v, Gnd and the output is PI friendly so does not require any level shifting. A passive infrared sensor (PIR…
The HC-SR04 Ultrasonic Range Sensor is used to measure distances by using ultrasonic sounds. It works by sending out a burst of ultrasound and listening for the echo when it bounces off of an object. A short pulse to trigger the detection, then listens for…
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