While searching for a simple way to measure temperature using my Raspberry Pi I came across the DS18B20 1-wire digital temperature sensor. This promised an accurate way of measuring temperature with a few wires and almost no external components. The … Continue reading
Following on from my first PIR sensor module article I thought I would create a Python script that allowed me to easily measure the reset time. That way I could attach a module, run the script and measure the time … Continue reading
I was looking for a way to send data to my Raspberry Pi via Bluetooth. Ideally I wanted to do this via an Android tablet and a custom app but I couldn’t get the app to connect. During a large … Continue reading
Following on from my Ultrasonic Distance Measurement Using Python – Part 1 article I decided to make my Python script a little bit more sophisticated. In this example the script takes three measurements and calculates the average. This is displayed … Continue reading
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LEDs, buzzers and switches are the most common items people attempt to interface to their Raspberry Pi’s. Something I found in eBay that is a little bit different is an ultrasonic measurement module. This allows you to measure the distance … Continue reading
Unlike some other devices the Raspberry Pi does not have any analogue inputs. All 17 of its GPIO pins are digital. They can output high and low levels or read high and low levels. This is great for sensors that … Continue reading