In this article we look at yet another humidity and temperature sensor from TI – this time its the HDC2080 which we will connect up to a Raspberry Pi Lets look at some of the technical information and data from TI HDC2080 Information The HDC2080…
In this article we look at another sensor – this time its the LIS3MDL which is a 3-axis MEMS magnetic field sensor, digital output, I2C, SPI, low power mode, high performance Sensor Information The LIS3MDL has user-selectable full scales of ±4/±8/±12/±16 gauss. The self-test capability…
In this article we look at a BH1745NUC Luminance and Colour Sensor and connect it to a Raspberry PI Lets look at that sensor first – here is some of the technical information abou it. The BH1745NUC is digital color sensor IC with I²C bus…
If you want to measure internet speed then Speedtest is a great website to visit and run the tests, the good news is that there is a Command line interface written in python that means you can quite easily add this functionality to your raspberry…
Using the command line in python is fine and for a lot of my sensor examples it is adequate the results show up like this but ultimately for displaying results or getting user feedback say to click on a button to switch and led on…
In this article we look at the TMP102 digital sensor and we will connect it up to a Raspberry Pi The TMP102 device is a digital temperature sensor ideal for NTC/PTC thermistor replacement where high accuracy is required. The device offers an accuracy of ±0.5°C…
In this example we connect an ADS1115 analog-to-digital converters to a Raspberry Pi. Lets look at the ADS1115. The ADS1115 is a precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-10 package, and a VSSOP-10 package. The ADS1115 incorporates a low-drift…
In this example we create a GUI to set the value for our PWM example – Controlling the Brightness of an LED Schematics Parts Name Links Raspberry Pi 4 Model B Development Board Aliexpress link Amazon. com link Ebay search Starter kit (leds , resistors)…
In this example we will create a gui to switch on and off the LED that we used in the PWM example – Controlling the Brightness of an LED Here is a reminder of the schematics Code Save the following as gpiogui.py [codesyntax lang=”python”] from Tkinter…
In this example we will connect a capacitive sensor to a GPIO pin on our Raspberry PI, when we touch the sensor we will display a message to the user. A practical use may be a touch activated lamp. This is the sensor we used…
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