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ChuckMcManis

@ChuckMcManis@chaos.social

Engineer, Father, Roboticist, Radio Amateur, Pun enthusiast, and an odd sense of humor.

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foone , an Random Englisch
@foone@digipres.club avatar

GAH. working with the raspi pico just makes me angry because of how confusing and unhelpful it can be. like I wrote some code, which I know works (because I've used it before!) and I copy it onto the device. I reconnect the device and... it doesn't enumerate. it doesn't even error. it just acts like there's no USB there

ChuckMcManis ,
@ChuckMcManis@chaos.social avatar

@foone Don't suppose you have the SWD access? If so using the BlackMagic Probe is pretty straight forward. If not it is definitely tough sledding.

foone , an Random Englisch
@foone@digipres.club avatar

Does anyone know if the US has recently changed the law involving pseudoephedrine or have pharmacies just shrinkflationed their packages to the point where it's no longer possible to actually get enough meds per month to last a full month?

ChuckMcManis ,
@ChuckMcManis@chaos.social avatar

@foone As I understand it you CAN get a 30day prescription for it from a doctor, but yeah otherwise its a PITA

foone , an Random Englisch
@foone@digipres.club avatar

this electrical device is a special sort of terrible: They labeled the polarity of the DC power jack, but not the voltage (or current, for that matter)

ChuckMcManis ,
@ChuckMcManis@chaos.social avatar

@foone L7805 or LM7805? As a linear regulator the amount of heat it will dissipate will (input_voltage - 5) * current. So if you give it 10V and draw one amp from it the case will be dissipating 5W of heat. (quite toasty and will melt a TO-220 without heatsink) Typical safe dissipation in still air is about 2W so 7A in and 1A draw before you need to add copper.

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