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Raspberry Pi Expansion Board - Custom Design Add-On GPIO Card
Rapberry Pi is a versatile low cost single board computer that plugs into your TV and a keyboard. It can be used for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video. Besides that it has many GPIOs to to receive signals and outputs to control or activate other devices or peripherals.
There are several great features in the Raspberry Pi board which includes...
Data Logger for Temperature, Motion, Humidity and many more
Data acquisition is the process of sampling signals that measure real world physical conditions such as temperature, motion, humidity etc. The signal need to be converted into digital numeric values that can be later processed by computer software for analysis.
To capture the signal we need...
Power Supply for GPS Vehicle Tracker
Most GPS/GSM vehicle tracking units are available in 12V system. For truck and trailers which uses 24V battery, the voltage need to be stepped down to 12V.
In addition to this, the GPS tracking units need to have back-up power when the main battery is cut-off during theft.
This DC power supply or rather called as power management board uses switchmode power supply to...