Recently I bought a DVK512 Raspberry Pi Expansion Board from Waveshare for my raspberry Pi. If you have never heard of the DVK512 the its a reasonably priced add-on (hat). The following features and image are from the Waveshare site UART interface: easily connects to UART modules…
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Handy if you lose the information Distribution | Username | Password —————|————|————- Debian Squeeze | pi | raspberry Arch | root | root QtonPi | root | rootme Raspbian | pi | raspberry OpenElec | root | openelec Pidora | root | raspberrypi RISC OS…
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In a previous example at connecting a mcp23017 to your raspberry pi we used a python script to flash LEDs connected to mcp23017 but there are other options available. In this example we look at a command line tool called i2cset i2cset is a small helper…
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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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MCP9808 digital temperature sensor example The MCP9808 digital temperature sensor converts temperatures between -20°C and +100°C to a digital word with ±0.5°C (max.) accuracy. The MCP9808 comes with user-programmable registers that provide flexibility for temperature sensing applications. The registers allow user-selectable settings such as Shutdown…
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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…