Here's an FS3000 Airflow Sensor attached to an #espressif #ESP32 #microcontroller sending UDP packets to a computer.
The circuit is attached to an RC #CyberTruck and a McLaren to test the speed of the cars.
There's a longer explanation on my website.
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Here's a proof of concept analog calculator using a @MicrochipMakes CuriosityNano dsPIC33.
Instead of using logic gates to add/sub numbers, this uses a DAC / opamp / ADC to do the math with analog voltages with code in in Java.
Full info:
mikekohn.net/micro/analog_ca…
My new toy arrived today.. should have the perfect project for this. Haven't done anything with dsPIC33 in a long time and can't decide if this should be done in straight assembly or Java.
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Here's a stirling engine powering a @MicrochipMakes ATtiny85 #microcontroller to play music.
With big tech buying up all the RAM chips causing a chip shortage, here is my solution: Cloud RAM!
Using an #FPGA as a MIPS CPU, instead of fetching data w/ a memory bus, this CPU can fetch it over a network to a cluster of #RaspberryPi 4's.
More info:
mikekohn.net/micro/cloud_ram…
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Here is a cheap xylophone with 8 solenoids connected to a @MicrochipTech ATtiny2313 with code written in AVR8 asm to play a melody and send MIDI commands to a @M5Stack MIDI module for the drums. Code + data fits in the micro's 2k of flash.
More info: mikekohn.net/micro/solenoid_…
Been using this new @Pololu AVR programmer to do in-circuit programming of an ATtiny2313 for my latest project. Saves a lot of time vs pulling the chip and dropping it in a programmer.. plus the built in UART is pretty slick :). Hopefully this project ends up working.
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Edible MIDI keyboard: Working electronic music keyboard made with @KITKAT keys, a @MicrochipTech #ATtiny2313 microcontroller, and an @M5Stack Unit MIDI.
More Info: mikekohn.net/micro/edible_mi…
Two computers networked over lasers by using Linux's tunnel feature, a user land program that listens to the tun0 device, USB-UART cables, and @MicrochipTech #attiny85 microcontrollers. Running 2400 baud. More Info:
mikekohn.net/micro/ip_over_l…
Guitar hooked up to an #ESP32 microcontroller. The ESP32 converts frequency to a MIDI note and sends it to a computer over a UART cable.
More info:
mikekohn.net/micro/guitar_jo…
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Just got this tape player so I can make mix tapes for my friends. Or maybe not... have an idea for a weird project to try...
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Got a really nice rally towel at the #UFL XFL Conference game.. put it up at my desk at work. Now have to wait 8 or so more months until football season starts back up again.
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Got a @XFLBattlehawks pin in the mail for being a season ticket member. Looking forward to the next #UFL season!
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Here's a Mandelbrot created by code written in PDP-11 assembly language. The software was assembled with naken_asm and the core is running in an #FPGA. I plan to expand the core in the future for maybe something bigger.
@larsbrinkhoff
Instead of a standard root beer float, here is a (non-alcoholic) beer float with strawberry shortcake ice cream.
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Saw this sign at the #Battlehawks game last night.
@TheRock ... it's time to come visit St. Louis!
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At the #Battlehawks game night I saw this sign. I totally agree but would also add to keep the games at 12pm / 3pm.. maybe that's just me though. @TheUFL
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Before the #Battlehawks game today I went up to the 400's and got some videos of @RodTheKicker3 warming up from far.
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Was worried about tariffs, so I ordered a bunch of stuff from China.
These are @M5Stack MIDI modules. Both use SAM2695 MIDI chips. One has a built in speaker, the other is going through a Mini-Marshall while I play guitar. Pretty awesome sounding modules!
Got some other stuff too that I'll post later. Felt like a kid in a toy store on their website :).