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#circuit

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tjhowse

I build #circuits to drive projects, like a kiln controller or a robot. My prototypes are built with bought modules on #veroboard. A module takes Vin and GND, and provides IO as SPI, I²C, 0-5v, etc, so I can ignore the specifics of each chip and work on the fun integration stuff.

The problem arrives when I want to make a #PCB without modules. I then I have to open a million datasheets and spend a week finding components, fixing footprints and routing.

🧵 1/2

#electronics#circuit#kicad
Research Network Digi-Oek.ch

[en] #Yale #research|ers have figured out a better way to control the path of light on small #chip|s, a breakthrough that could lead to better and cheaper sensors, smart phones ... devices.

"#Photonic integrated #circuit|s (#PIC|s) use light, or photons, to provide ... advantages over conventional electronics ..."

"... move everything on chip ... it could significantly reduce the cost of optical communications devices and other technologies ..."

engineering.yale.edu/news-and-

engineering.yale.eduYale Team Creates Revolutionary Chip-Scale Optical Isolator | News | Yale EngineeringYale researchers develop non-magnetic optical isolator with 2 terahertz bandwidth, enabling cheaper, more efficient photonic integrated circuits for next-gen devices.
#ResearchHighlights
Continued thread
poleguy looking for lost tools

I ordered some LED's, sockets, 2n2222 transistors and some 12V relays today.

What do you all think of this plan:

USB->UART (buy it)

UART->LOGIC output (build it: see falstad/video)

LOGIC->RELAY (buy it)

POWER- through relay (spare 12v from shucked HDD's)

Automotive/pinball LED T10 bulbs in sockets mounted to PCB or 3D printed structure. (buy it)

#electronics
#soldering
#microsoft
#MicrosoftTeams
#onair
#onairlight
#dietz
#chrome
#python
#ee
#circuit
#falstad
#LED
#arduino
#raspberrypi

Continued thread
poleguy looking for lost tools

My python code sends data out of the serial port if Teams is On a call and sends nothing otherwise.

The circuit turns the LED red when it sees pulses and leaves it red for a second or so. As long as it gets serial data once a second or so the LED stays on. If anything goes wrong it goes off

Would you buy a serial to on/off GPIO output module like this?

#electronics#soldering#microsoft
Continued thread
poleguy looking for lost tools

I have simmed and soldered and achieved blinky blinky!

Next step. It's not bright enough. Buying a logic level relay and some T10 LED bulbs. I'm going to try some things.

falstad.com/circuit/circuitjs.

#electronics#soldering#microsoft
WordofTheHour

#circuit : the act of moving or revolving around, or as in a circle or orbit

- French: circuit

- German: Kreislauf

- Italian: circuito

- Portuguese: circuito

- Spanish: circuito

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