Tom Groenland

Small variable power supply + volt meter would be genuinely useful. Doesn’t have to be crazy high output power or voltage. Something that can do 0.5v to 6.0v (higher voltages would be nice too but generally not that important.) Something like 500mA peak and 1.2A for short durations

seeking ideas for actually marketable Framework expansion cards you’d buy from me. One I’ve already specc’d? One you haven’t seen yet? Don’t say LTE in a card the modems are mostly too big.

@i2cjak @yacineMTB Literally

@yacineMTB I’m deploying models in places you couldn’t conceive

I need to become the Edge AI guy. fast.

@i2cjak People have no idea what’s coming with edge AI. More importantly low power edge AI. I’ve been working with some human detection models that fit in 400k with <5mS inference.

@eevblog Maybe “Underground Floor” should be “Down Under Floor”? I don’t know, I don’t speak Australian.

I'm still seeing people in the lift confused by my ground floor sticker. What else do I have to do?

@LambdaMamba @Malmons_World Can that corner be used as a bottle opener?

I made some ✨aesthetic improvements ✨to the @Malmons_World USB! As a newbie PCB designer, I learnt a lot about PCBs by reverse engineering microcontrollers!

@i2cjak This is the way.

framework module that gives me more hours in the day

@yacineMTB We should start encoding language in 3d and 3d print our books. 8 by 8 by 8 voxels is plenty to encode all the words, yes we have to figure out how to see through the material, but that’s a hardware problem. Hardware always catches up.

My 3d printer is more reliable and cheaper to run than any actual 2d printer (I don't own any 2d printers, by the way)

JTAG/SWD programmer with a tag connect imaging a segger built into your laptop. Stepper motor driver attached to a mechanism that auto opens and closes the laptop lid Physical key lock that acts as 2fa Multimeter Canbus controller with a odb2 cable coming out of it. Laser range finder Humidity/air pressure sensor LED flash light

Oh no oh fuck I ran out of ideas for the framework modules guys noooo im so cooked noooooooooooooooooooooooooooo nooooooooo

@Cipher_twt Don’t trust a usb stick from an electrical engineer.

Final year project be like:

@i2cjak Why not 3 tho?

"make a framework module with two usb-c ports!!!!!"

@i2cjak NextPCB shill (thanks btw), and an absolute savage

what do you think of me, as an account and as a person?

Making progress

@kunukunu The receive sensitivity on the towers is also generally better. For low data rates you can also get a higher link budget by repeating the message a bunch. 100 times gives you 20db more

@kunukunu Macro cell towers will transmit at levels of +43dbm to +48dbm (20-60+ watts per segment) the antennas are +15dbi to +20dbi. +60dbm total EIRP is not unheard of. Cell phones will work down to about -110dbm RX at low data rates. So 160db to 180db link budget is not unheard of.

D2CやってるStarlink衛星の高度は340kmであるらしく、2GHzでの自由空間損失は149dBとかになるんだが、なんでそんなんで通信が成立するんだ

@Jason I’m in

We started an AI founder twitter group... reply with "I'm in" if you're a founder and want to be added

@MehdiHacks At 10Ghz I hope that’s not ENIG, a lot of the signal will just be going through Nickel.

Lime Microsystems has started a new campaign on CrowdSupply for their new product: a 4-channel up/down converter covering 800MHZ to 10GHZ, based on their LMS8001A RF chipset. It enables coverage from 10MHZ to 10GHZ for LimeSDR family.

@yacineMTB Calgary had its 28th winter of the year on Thursday. Tomorrow it’s 20 degrees. (68 degrees American). Literally been like this every week.

I have a mutual who recently moved to Ottawa and every time he tweets about winter finally being over, it snows the next day. It's the funniest shit ever

@magicarchtec One reason is that it makes the surface of the board less flat, this makes it more difficult to get the Solder paste stencil to make a good seal with the board surface. 60 to 80 percent of all pcb assembly failures are due to the solder paste process.

今の車載基板設計、シルクが一切ないんだなぁ。 コネクタ含めてDIP部品なし、Via穴はサイズ大きめでレジスト残渣残りによる不良軽減のためなのかなぁ

@yacineMTB The admin tools are so damn good too.

tailscale is probably one of the fastest growing companies right now

For a good pnp, 0201 is no problem at all and runs the same speed. For fine pitch bga’s it’s all about paste, paste and more about paste, it slows thing down only in so far as the stencils can take an extra day because of special coating that need to be applied. With good process and good design of the footprint 99.99% yield is not that hard. TH is evil be sometimes necessary

yah - for folks playing along at home, if you want to keep assembly prices reasonable, consider: 1) Larger passives are faster to throw around (>=0603 super fast, 0402 okay, <=0201 slow) 2) QFP / QFN are generally fine 3) BGA / WLCSP massive slowdown, expensive to inspect, risky and time-consuming rework 4) Through Holes: Friends don't let friends THT. Just don't. Keep it SMT and you'll save tons. 5) Too few layers: I keep seeing folks aiming at 2-4 layer boards. Just add layers, it'll massively simplify your routing and increase the probability that your board works.

When your component packaging choices make your PCB more expensive than the time it takes to design it.