#CircuitOfTheDay is “The Star of DevOps” a USB-powered programmable Christmas tree star that can also control a string of addressable LEDs or other digital peripherals via connectors on its tips. #BananaPlugForScale

Here’s a #CircuitOfTheDay two for one. Herr my “cat squirter” pump module (originally for, well….) runs a vacuum pump for SMD assembly. The pump is triggered by an “Octo-Chat” foot switch. This gives me foot activated vacuum pick-up tool with interchangeable tips.

Look, you might have a mechanical keyboard, but do you have a mechanically etched mechanical keyboard? #CircuitOfTheDay

Friday #CircuitOfTheDay¹: this switching shield for the D1 bus accommodates controlling LED lighting by button, motion sensor and over wifi from your home automation platform. Use any USB power source to run the electronics and a string of 5v LEDs. Ideal hallway lighting for nocturnal hikinks². #BananaPlugForScale

¹ #IncreasinglyNotDaily

² I meant hijinks but I will not diss your hikink

#CircuitOfTheDay a Modbus shield for ESP32, because in some parts of the Internet it’s still 1982. Isolated 5v transceiver because magic smoke never goes out of style.