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#pi

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Building a Pi-based MIDI controller / sequencer to access all the features of the Roland ST88Pro I recently bought from @FreakyFwoof

The problem with the Pi is if you want precision timing and the correct baud rate you have to mess with settings, disable devices, possibly rebuild the kernel etc (or go bare metal). My solution: Use a PIC16F688 (which I have alot of) running a tight loop to listen for and queue incoming messages to its UART while using the clock ouput pin as a sync signal. The Pi (in a much faster loop with its interrupts disabled) will poll that and use it to count its delta time intervals.

Just for fun: how to fit squares of side length 1/n for n = 1 upwards in a 1 times π^2/6 rectangle (Basel problem). It's a bit tricky to avoid fragmentation of the free space left. It does not work with an initial square of sides π/√6 nor rectangles of dimensions π/2 times π/3 or 3/2 times π^2/9 (and I haven't proved it works up to infinity for my initial choice, left to mathematicians).
#Mathematics #pi #Mathart

Here is my new #minirack !

DeskPi RackMate T1, 2x GeeekPi 10 Inch 2U Rack Mount for Raspberry, MikroTik CSS610-8G-2S+in Network Switch, and DeskPi 7.84-inch Touch Screen.

4xpi5-8gb and 4xpi5 -6gb, 8 total nodes. There is also an additional pi4 running the display.

Running docker swarm with Portainer.

So far my stacks are: CoreDNS, traefik, tailscale, docker-registry, and nextjs dashboard for the display.

True story. This week a friend was asked by his doctor, on a scale of 1-10, what his pain level is. He broke his tibia and fibula skiing a couple of months ago. Madhu said his pain level was Pi. The doctor asked what he meant. Madhu explained the pain was low level but never ending. Brilliant. #pain #doctor #Pi