In this example we will flash an RGB LED using C Schematics Here is a schematic and layout Code This example requires wiringPi to be installed – http://wiringpi.com/download-and-install/ [codesyntax lang=”c”] #include <wiringPi.h> #include <stdio.h> #define REDLED 0 #define GREENLED 1 #define BLUELED 2 void init(void) {…
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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>…
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The BMP180 is the new digital barometric pressure sensor of Bosch Sensortec, with a very high performance, which enables applications in advanced mobile devices, such as smart phones, tablet PCs and sports devices. It follows the BMP085 and brings many improvements, like the smaller size…
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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…
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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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This is follow on from the DS18b20 terminal example at http://www.pibits.net/learning/120.php , this time a python example Code [codesyntax lang=”python”] import os import glob import time os.system(‘modprobe w1-gpio’) #load one wire communication device kernel modules os.system(‘modprobe w1-therm’) base_dir = ‘/sys/bus/w1/devices/’ #point to the address device_folder = glob.glob(base_dir…