If you need to add more I/O lines to your Raspberry PI you can connect an mcp23017. The MCP23017 uses two i2c pins and this gives you 16 general purpose pins. You can set each of 16 pins to be input, output, or input with a …
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shedboy71
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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 …
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In this example we will display the red, green and blue colours on an RGB LED I used a breakout which came as part of a kit, it was a common anode type Here is a schematic that shows how to connect this to your …
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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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In this example we expand the amount of outputs using a 74HC595 The 74HC595; 74HCT595 are 8-stage serial shift registers with a storage register and 3-state outputs. The registers have separate clocks. Data is shifted on the positive-going transitions of the shift register clock input …
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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 …