Fibonacci series can be generated with LabVIEW using a For Loop, Shift Registers and an Addition Operator. In the example below, we provide a Front Panel Control with the number of Fibonacci series entries to generate. We initialize two shift registers, and pass the current Fibonacci sum as well as the previous Fibonacci entry to […]
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Using MCP3008 ADC with Raspberry Pi
Raspberry Pi does not have a built-in ADC. Which means an external ADC has to be used to capture analog signals. In theory, it is possible to capture certain analog signals via the audio input jack, but there may be limitations on the signal amplitude and frequency ranges, among other issues. MCP3008 is an 8 […]
I Wandered Lonely As a Cloud
I wandered lonely as a cloud That floats on high o’er vales and hills, When all at once I saw a crowd, A host, of golden daffodils; Beside the lake, beneath the trees, Fluttering and dancing in the breeze. Continuous as the stars that shine And twinkle on the milky way, They stretched in never-ending […]
Clock-O’-Clay
In the cowslip pips I lie, Hidden from the buzzing fly, While green grass beneath me lies, Pearled with dew like fishes’ eyes, Here I lie, a clock-o’-clay, Waiting for the time o’ day. While the forest quakes surprise, And the wild wind sobs and sighs, My home rocks as like to fall, On its […]
Continuously updating audio waveform display using Python
While matplotlib works well for displaying static graphs and charts, sometimes we may need to display a continuous (live) waveform on a graph. This requires repeatedly retrieving and displaying samples of incoming data (an audio stream, for example). An interesting way to display such a continuously varying waveform is to use the ‘Animation’ classes built […]
Setting up Raspberry Pi with Raspbian
The easiest way to get a Raspberry Pi up and running is to boot it with NOOBS (New Out Of Box Software) that can install the OS you’ll need. The default NOOBS offline installer includes LibreELEC and Raspbian. In this tutorial, we focus on installing Raspbian. We’ve used Raspberry Pi 3 Model B+, a 128 […]
Night
Slowly the golden memory of the dead sun fades from the hearts of the cold, sad clouds. Silent, like sorrowing children, the birds have ceased their song, and only the moorhen’s plaintive cry and the harsh croak of the corncrake stirs the awed hush around the couch of waters, where the dying day breathes out […]
When I Heard the Learn’d Astronomer
When I heard the learn’d astronomer, When the proofs, the figures, were ranged in columns before me, When I was shown the charts and diagrams, to add, divide, and Measure them, When I sitting heard the astronomer where he lectured with much Applause in the lecture-room, How soon unaccountable I became tired and sick, Till […]
Airports
I always enjoy observing people at the airport. Some look stressed and move quickly, others have a blank look on their face. Businessmen pacing around while talking on their phone, oblivious of the world around them. A group of friends returning from a trip. People drinking beer at 8 am, because the usual rules don’t […]