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QVHenkel's profile picture. All things 3D | Rendering | Simulation | Electronics | StartUp | CEO engineering services company - views are my own

Lukas Henkel

@QVHenkel

All things 3D | Rendering | Simulation | Electronics | StartUp | CEO engineering services company - views are my own

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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Jan 9, 2024

I am in the process of getting the production version of the open-source Raspberry Pi CM4 compatible module based on an iMX 8M plus up and running. If you are interested in this module, check out the Crowdsupply pre-launch page 😊

QVHenkel's tweet image. I am in the process of getting the production version of the open-source Raspberry Pi CM4 compatible module based on an iMX 8M plus up and running. If you are interested in this module, check out the Crowdsupply pre-launch page 😊
QVHenkel's tweet image. I am in the process of getting the production version of the open-source Raspberry Pi CM4 compatible module based on an iMX 8M plus up and running. If you are interested in this module, check out the Crowdsupply pre-launch page 😊
QVHenkel's tweet image. I am in the process of getting the production version of the open-source Raspberry Pi CM4 compatible module based on an iMX 8M plus up and running. If you are interested in this module, check out the Crowdsupply pre-launch page 😊
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Dec 3

The SDR AFE board is a power module paradise😄The small formfactor is nice and thermal management will be easy in this case

QVHenkel's tweet image. The SDR AFE board is a power module paradise😄The small formfactor is nice and thermal management will be easy in this case
QVHenkel's tweet image. The SDR AFE board is a power module paradise😄The small formfactor is nice and thermal management will be easy in this case
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Dec 1

The design of the new frontend for the Framework Laptop 16 SDR module is almost complete 🙌

QVHenkel's tweet image. The design of the new frontend for the Framework Laptop 16 SDR module is almost complete 🙌
QVHenkel's tweet image. The design of the new frontend for the Framework Laptop 16 SDR module is almost complete 🙌
QVHenkel's tweet image. The design of the new frontend for the Framework Laptop 16 SDR module is almost complete 🙌
QVHenkel's tweet image. The design of the new frontend for the Framework Laptop 16 SDR module is almost complete 🙌
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Nov 25

This step in a multichannel design is always very satisfying 😄

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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Nov 25

I decided to use a buried via stackup, since the entire transmit chain (only the receive chain is shown here) will have to be located on the bottom side of the AFE board

QVHenkel's tweet image. I decided to use a buried via stackup, since the entire transmit chain (only the receive chain is shown here) will have to be located on the bottom side of the AFE board
QVHenkel's tweet image. I decided to use a buried via stackup, since the entire transmit chain (only the receive chain is shown here) will have to be located on the bottom side of the AFE board
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Nov 24

Schematics for the new revision of the Framework Laptop SDR module analog frontend is done. Now I just need to figure out where to put the 1700 components 😬

QVHenkel's tweet image. Schematics for the new revision of the Framework Laptop SDR module analog frontend is done. Now I just need to figure out where to put the 1700 components 😬
QVHenkel's tweet image. Schematics for the new revision of the Framework Laptop SDR module analog frontend is done. Now I just need to figure out where to put the 1700 components 😬
QVHenkel's tweet image. Schematics for the new revision of the Framework Laptop SDR module analog frontend is done. Now I just need to figure out where to put the 1700 components 😬
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Nov 15

The new PPG sensorboard revision arrived. Time to try manually assembling 01005 parts 🤏

QVHenkel's tweet image. The new PPG sensorboard revision arrived. Time to try manually assembling 01005 parts 🤏
QVHenkel's tweet image. The new PPG sensorboard revision arrived. Time to try manually assembling 01005 parts 🤏
QVHenkel's tweet image. The new PPG sensorboard revision arrived. Time to try manually assembling 01005 parts 🤏
QVHenkel's tweet image. The new PPG sensorboard revision arrived. Time to try manually assembling 01005 parts 🤏
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Nov 6

Symmetric DRAM layouts save so much time. Even if the controller pinout is not symmetrical (which it rarely is) there are still so many swap options that it makes sense to mirror most of the escape routing

QVHenkel's tweet image. Symmetric DRAM layouts save so much time. Even if the controller pinout is not symmetrical (which it rarely is) there are still so many swap options that it makes sense to mirror most of the escape routing
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Nov 5

I received some more prototypes for the open-source smartwatch, including a few machined enclosures

QVHenkel's tweet image. I received some more prototypes for the open-source smartwatch, including a few machined enclosures
QVHenkel's tweet image. I received some more prototypes for the open-source smartwatch, including a few machined enclosures
QVHenkel's tweet image. I received some more prototypes for the open-source smartwatch, including a few machined enclosures
QVHenkel's tweet image. I received some more prototypes for the open-source smartwatch, including a few machined enclosures
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 26

Hopefully the EMI gasket around the connector can contain the fields. I couldn’t find a fully shielded of-the-shelf connector with a stacking height of 6 mm, a high pin density, and one that is suitable for up to 24 Gbps.

QVHenkel's tweet image. Hopefully the EMI gasket around the connector can contain the fields. I couldn’t find a fully shielded of-the-shelf connector with a stacking height of 6 mm, a high pin density, and one that is suitable for up to 24 Gbps.
QVHenkel's tweet image. Hopefully the EMI gasket around the connector can contain the fields. I couldn’t find a fully shielded of-the-shelf connector with a stacking height of 6 mm, a high pin density, and one that is suitable for up to 24 Gbps.
QVHenkel's tweet image. Hopefully the EMI gasket around the connector can contain the fields. I couldn’t find a fully shielded of-the-shelf connector with a stacking height of 6 mm, a high pin density, and one that is suitable for up to 24 Gbps.
QVHenkel's tweet image. Hopefully the EMI gasket around the connector can contain the fields. I couldn’t find a fully shielded of-the-shelf connector with a stacking height of 6 mm, a high pin density, and one that is suitable for up to 24 Gbps.
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 26

In the updated SDR implementation, I am using a fully shielded board-to-board connector for the two JESD interfaces and control signals. This is much cleaner than the previous FPC implementation

QVHenkel's tweet image. In the updated SDR implementation, I am using a fully shielded board-to-board connector for the two JESD interfaces and control signals. This is much cleaner than the previous FPC implementation
QVHenkel's tweet image. In the updated SDR implementation, I am using a fully shielded board-to-board connector for the two JESD interfaces and control signals. This is much cleaner than the previous FPC implementation
QVHenkel's tweet image. In the updated SDR implementation, I am using a fully shielded board-to-board connector for the two JESD interfaces and control signals. This is much cleaner than the previous FPC implementation
QVHenkel's tweet image. In the updated SDR implementation, I am using a fully shielded board-to-board connector for the two JESD interfaces and control signals. This is much cleaner than the previous FPC implementation
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 24

It took me way too long to find RX3 expecting it to be highlighted yellow like the other RX channels 😅

QVHenkel's tweet image. It took me way too long to find RX3 expecting it to be highlighted yellow like the other RX channels 😅
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 20

Assembling the digital crown FPC for the open-source smartwatch. The whole assembly is only 9mm wide 🧐

QVHenkel's tweet image. Assembling the digital crown FPC for the open-source smartwatch. The whole assembly is only 9mm wide 🧐
QVHenkel's tweet image. Assembling the digital crown FPC for the open-source smartwatch. The whole assembly is only 9mm wide 🧐
QVHenkel's tweet image. Assembling the digital crown FPC for the open-source smartwatch. The whole assembly is only 9mm wide 🧐
QVHenkel's tweet image. Assembling the digital crown FPC for the open-source smartwatch. The whole assembly is only 9mm wide 🧐
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 20

I had to combine the PA and AFE in the Framework laptop SDR. The split approach took too much space away from the filter banks. Although less modular, the new implementation allows for 4x RX and 4x TX, and is a much cleaner mechanical integration. I also switched to skived…

QVHenkel's tweet image. I had to combine the PA and AFE in the Framework laptop SDR. The split approach took too much space away from the filter banks. Although less modular, the new implementation allows for 4x RX and 4x TX, and is a much cleaner mechanical integration. I also switched to skived…
QVHenkel's tweet image. I had to combine the PA and AFE in the Framework laptop SDR. The split approach took too much space away from the filter banks. Although less modular, the new implementation allows for 4x RX and 4x TX, and is a much cleaner mechanical integration. I also switched to skived…
QVHenkel's tweet image. I had to combine the PA and AFE in the Framework laptop SDR. The split approach took too much space away from the filter banks. Although less modular, the new implementation allows for 4x RX and 4x TX, and is a much cleaner mechanical integration. I also switched to skived…
QVHenkel's tweet image. I had to combine the PA and AFE in the Framework laptop SDR. The split approach took too much space away from the filter banks. Although less modular, the new implementation allows for 4x RX and 4x TX, and is a much cleaner mechanical integration. I also switched to skived…
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 13

It's been years since I last ordered a two-layer board. Even this time, it was only for a mechanical test fit of the open-source smartwatch carrier board 😅 Four- and six-layer boards have become so cheap that they are my default choice for any simple project

QVHenkel's tweet image. It's been years since I last ordered a two-layer board. Even this time, it was only for a mechanical test fit of the open-source smartwatch carrier board 😅 Four- and six-layer boards have become so cheap that they are my default choice for any simple project
QVHenkel's tweet image. It's been years since I last ordered a two-layer board. Even this time, it was only for a mechanical test fit of the open-source smartwatch carrier board 😅 Four- and six-layer boards have become so cheap that they are my default choice for any simple project
QVHenkel's tweet image. It's been years since I last ordered a two-layer board. Even this time, it was only for a mechanical test fit of the open-source smartwatch carrier board 😅 Four- and six-layer boards have become so cheap that they are my default choice for any simple project
QVHenkel's tweet image. It's been years since I last ordered a two-layer board. Even this time, it was only for a mechanical test fit of the open-source smartwatch carrier board 😅 Four- and six-layer boards have become so cheap that they are my default choice for any simple project
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Lukas Henkel
@QVHenkel
Oct 12

If you like fancy schematic symbols, you can copy block diagrams from datasheets. Just import the PDF into Inkscape, tidy up the block diagram and export as an EMF file. Altium can read and scale EMF files with a transparent background

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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 10

Using Blender and the layout data of a PCB, we can deconstruct an image of the PCB to reveal its inner copper layers 🔍

QVHenkel's tweet image. Using Blender and the layout data of a PCB, we can deconstruct an image of the PCB to reveal its inner copper layers 🔍
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 9

While I was waiting for the machined smartwatch case, I decided to test it with a transparent, 3D-printed enclosure. It might look interesting once all the internals are assembled

QVHenkel's tweet image. While I was waiting for the machined smartwatch case, I decided to test it with a transparent, 3D-printed enclosure. It might look interesting once all the internals are assembled
QVHenkel's tweet image. While I was waiting for the machined smartwatch case, I decided to test it with a transparent, 3D-printed enclosure. It might look interesting once all the internals are assembled
QVHenkel's tweet image. While I was waiting for the machined smartwatch case, I decided to test it with a transparent, 3D-printed enclosure. It might look interesting once all the internals are assembled
QVHenkel's tweet image. While I was waiting for the machined smartwatch case, I decided to test it with a transparent, 3D-printed enclosure. It might look interesting once all the internals are assembled
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 6

A good example of when to use soldermask defined pads... Especially when using VIPPO and the VIA is larger than the original pad, soldermask defined footprints have a higher manufacturing yield. The two images show the same footprint; one is soldermask-defined, while the other is…

QVHenkel's tweet image. A good example of when to use soldermask defined pads... Especially when using VIPPO and the VIA is larger than the original pad, soldermask defined footprints have a higher manufacturing yield. The two images show the same footprint; one is soldermask-defined, while the other is…
QVHenkel's tweet image. A good example of when to use soldermask defined pads... Especially when using VIPPO and the VIA is larger than the original pad, soldermask defined footprints have a higher manufacturing yield. The two images show the same footprint; one is soldermask-defined, while the other is…
QVHenkel's tweet image. A good example of when to use soldermask defined pads... Especially when using VIPPO and the VIA is larger than the original pad, soldermask defined footprints have a higher manufacturing yield. The two images show the same footprint; one is soldermask-defined, while the other is…
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QVHenkel's profile picture.
Lukas Henkel
@QVHenkel
Oct 5

There is very little space in the AFE module for the Framework laptop SDR. I have started redesigning the floorplanning of the AFE module to improve channel isolation. I'll probably move some branches of the filter banks to the bottom of the PCB to create enough space for…

QVHenkel's tweet image. There is very little space in the AFE module for the Framework laptop SDR. I have started redesigning the floorplanning of the AFE module to improve channel isolation. I'll probably move some branches of the filter banks to the bottom of the PCB to create enough space for…
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Tube Time on 🟦☁

@TubeTimeUS
MakeAugusta's profile picture. 🇺🇸 US-Based 🇺🇸 PCB Assembly, Electronics Prototyping, and PCB Design for Small Business | https://t.co/qCzYnfqEug | War Veteran Owned #USMC #BadgeLife

Cyber City Circuits

@MakeAugusta
Mirko_DIY's profile picture. HW/PCB Designer, DIY Maker, carrier boards, Custom HW/PCB designs, PCIe, SATA, GbE

Mirosław Folejewski (Mirkotronics)

@Mirko_DIY
Merocle's profile picture. Head of Hardware at JetBrains. Any sufficiently advanced technology is indistinguishable from magic.

Ivan Kuleshov

@Merocle
robin7331's profile picture. Currently designing, manufacturing and selling the Pixel Pump and SMD Magazines. Also an aviation geek. ✈️

Robin Reiter

@robin7331
TobisLab's profile picture. Electronics Design & Embedded Software ⚡️| CNC Hobbyist 🔧 | Sometimes I post about stuff I'm working on 💡

Tobias🌾

@TobisLab
sulfuroid's profile picture. MD & Electronics. Please visit our link and register

🆂🆄🅻🅵🆄🆁🅾🅸🅳

@sulfuroid
DanielBogdanoff's profile picture. Follow for geek stuff. Engineering, electronics, 3D printing. @rohdeschwarz, host of Moore's Lobby podcast. Makes videos. Find me kinda everywhere!

Daniel Bogdanoff

@DanielBogdanoff
minut_e's profile picture. Open-source and retro hardware. https://t.co/1ygLPhnX5K | https://t.co/ysUih8XBDr | MNT Reform, Pocket Reform, Linux, ARM, RISC-V, FPGA, Amiga. https://t.co/abQKeDBr81

MNT Research GmbH

@minut_e
timonsku's profile picture. Fucking nerd. Hardware hacker. Birb liker. Open for freelance work. he/him 🏳‍🌈 https://t.co/5zF9I0SZqQ

Timon is mostly on Bluesky

@timonsku
geerlingguy's profile picture. Father, author, developer, maker. Sometimes called "an inflammatory enigma". #stl #ansible #k8s #raspberrypi #crohns #ostomy

Jeff Geerling

@geerlingguy
matthewvenn's profile picture. Engineer and Technology Communication. On a mission to make ASICs more accessible. YosysHQ & Tiny Tapeout founder member. @mattvenn.net on blue sky

Matthew Venn

@matthewvenn
splinedrive's profile picture. BMX rider | Embedded Software engineer. Hobbyist chip/FPGA—OS-capable RISC-V SoCs (since ’21). Linux/xv6. TU Berlin.

logic destroyer

@splinedrive
adafruit's profile picture. Brooklyn, NY USA - Manufacturer, open-source hardware, certified Minority and Woman-owned Business Enterprise (M/WBE) X account managed by @ladyada & @ptorrone

adafruit industries

@adafruit
Hacksterio's profile picture. https://t.co/mTAliYkLw3, an Avnet community, is the world’s fastest growing developer community for learning, programming, and building hardware.

Hackster.io

@Hacksterio
alexocheema's profile picture. Building @exolabs | prev @UniOfOxford We're hiring: https://t.co/UlkApFndnH

Alex Cheema - e/acc

@alexocheema
HamWa07's profile picture. 🇺🇦 Critical Communications, Amateur Radio, Military Comms, Nuclear Weapons, Physics https://t.co/OnzWgpxfew https://t.co/S40dnZNbX9 Signal

Radio & Nukes 🇺🇦

@HamWa07
hthieblot's profile picture. Investing @fdotinc, Founder @curseforge acq by @Twitch, love @oheather1337, 3x dad, 🇫🇷🇨🇭🇺🇸

Hubert Thieblot

@hthieblot
ihorbeaver's profile picture. Building self-replicating robots. Cofounder of MicroFactory. Seed soon.

Igor Kulakov

@ihorbeaver
teraytech's profile picture. Mixed Signal & RF Microwave / LinuxCNC

Tτ

@teraytech
sdamico's profile picture. founder/ceo of impulse @impulselabs_

Sam D'Amico

@sdamico
Mascobot's profile picture. Partner @a16z (investor in @cursor_ai, @thinkymachines, @bfl_ml, @WaveFormsAI & more) | Roboticist | Cofounder @Fellow_AI | @MIT 35 under 35 | Opinions my own.

Marco Mascorro

@Mascobot
OpenSauceLive's profile picture. combining the best of makers and creators.

Open Sauce

@OpenSauceLive
natalie_thenerd's profile picture. Self taught maker just trying to make and learn more. LEDs and Game Boys. and a bit of gaming ofc Creator of @moddedgameboy club. she/her

natalie

@natalie_thenerd
tsungxu's profile picture. Founder/CEO @vightaero. Making door to door flight as normal as driving

Tsung Xu

@tsungxu
cmonkey's profile picture. Founder (and usually tweeting) at @FrameworkPuter

Nirav Patel

@cmonkey
byte_thrasher's profile picture. fourier-pilled eee, radio @ 4x5wc, hw zine proprietor @ https://t.co/QCDuNwzkVY

avi

@byte_thrasher
jwt0625's profile picture. Extend all tails of the bell curve. Daily nerd snipe(s). Robotics. Photonics. RF/microwave. Nanofab. KO6FFN. Twitter as an open journal.

outside five sigma

@jwt0625
macjshiggins's profile picture. click clack keyboard man @pipedream_labs. cofounded @voyage, built drones for amazon and larger drones for the army. hyperspectral sensing enthusiast. KC3YLJ

MacCallister Higgins

@macjshiggins
ericmigi's profile picture. Product of my errors. Currently: @Pebble Previously: @Beeper @YCombinator @Pebble

Eric Migicovsky

@ericmigi
alexklimaj's profile picture. Fully bootstrapped founder of @ARK_Electr0nics. Working to grow US drone production capability.

Alex Klimaj

@alexklimaj
tty0x24's profile picture. Building a mobile computing platform before everything went south.

Jerry Giant

@tty0x24
AxeleraAI's profile picture. A powerful, efficient, cost-effective, and user-friendly hardware and software AI platform to accelerate computer vision in edge devices.

Axelera AI

@AxeleraAI
aphysicist's profile picture. Building the future of manufacturing: @atomic_inc, @reindsummit, @newindustrials

Aaron Slodov

@aphysicist
joebarnard's profile picture. Intern @ https://t.co/MZrwGWouCr

Joe Barnard 🚀

@joebarnard
johnsel92's profile picture. The ghost in your machine || Field programming your gate arrays and coding PCBs in @JITXsoftware

John Simons

@johnsel92
MehdiHacks's profile picture. Security engineering manager by day, hacker by night. Mostly writing about RF, SDR, Hardware Security, Radar, teardowns, and books.

Mehdi

@MehdiHacks
PalmerLuckey's profile picture. I am a technology enthusiast, writer, and modder. Founder of @ModRetro, @Oculus VR, and @Anduriltech. Keeping American superheroes safe with autonomous systems.

Palmer Luckey

@PalmerLuckey
AlbyHojel's profile picture. video world models // YC w25 // uc berkeley ‘24

Alberto Hojel

@AlbyHojel
davideasnaghi's profile picture. copper merchant @diodeinc

Davide Asnaghi

@davideasnaghi
ritwikpavan's profile picture. Hardware & Robotics. Insider @hwnation

Ritwik Pavan

@ritwikpavan
SirhaXalot_'s profile picture. EE | SIGINT Researcher | Cybersecurity Enthusiast | HAM OP | Hacker & Maker | Breaker of things | RF | OT | IoT | Team AntiHunter

SirHaXalot

@SirhaXalot_
icanc4's profile picture. he/him | micro managing @uwrealitylabs | i study software at @uwaterloo

vincent

@icanc4
RFAmirhosein's profile picture. CEO at ABN Co.,Ltd ( RF & Microwave )

Amirhosein Hasanpur

@RFAmirhosein
MakeMHz's profile picture. Manufacturer and online retailer for open-source hardware, tools, and electronic kits. Based outside of Atlanta, GA.

MakeMHz

@MakeMHz
HB9FXQ's profile picture. 🏳️‍🌈 // Electronics, RF, SDR, Software engineering // Working at @Aaronia_AG // https://t.co/IO7HTlNP1m

Frank Zosso

@HB9FXQ
peteoxenham's profile picture. Machinist, head of product @ https://t.co/ljhcu8mLXl, founder https://t.co/D5H1LTJYTb (acq by toolpath), making ai for CNC machining. Opinions my own and most likely wrong.

Pete Oxenham

@peteoxenham
RaphaelRau's profile picture. My name is Raphael Rau -- I am a artist specialized in hyper-real physical based 3D / CGI

Raphael Rau

@RaphaelRau
augmentaltech's profile picture. Seamless interfaces for hands-free human-computer interaction

Augmental

@augmentaltech
PaisleyMicro's profile picture.

Paisley Microsystems

@PaisleyMicro
NWSSWPC's profile picture. Safeguarding society with actionable space weather information.

NOAA Space Weather Prediction Center

@NWSSWPC
BMenkuec's profile picture. SDR, digital communication, FPV, MRI DJ4LF Chromosomes XY 🇹🇼 🇺🇦 🇮🇱

Benjamin Menkuec

@BMenkuec
bretweber's profile picture. I review Single Board Computers and do dumb tech stuff so you don't have to. I also run @sbccompare / https://t.co/nJpiwpbWAK https://t.co/0yiYpxa7aP

bret.dk

@bretweber
kieranbingham's profile picture. Linux Kernel, and open source developer. Mostly in multimedia and libcamera.

Kieran Bingham

@kieranbingham
RenesasGlobal's profile picture. A leading embedded semiconductor solution provider with a Purpose #ToMakeOurLivesEasier, serving automotive, industrial, infrastructure, and IoT industries.

Renesas Electronics

@RenesasGlobal
AzorFrank's profile picture. Consumer and Gaming Marketing @AMD. Co-founder of @Alienware, BOD of @EyesafeOfficial & @Gamercraftgg Playing Overwatch 2 & Cities Skyline 2

Frank Azor

@AzorFrank
NNNILabs's profile picture.

NNNI

@NNNILabs
AJamesMcCarthy's profile picture. Exploring the universe from a backyard in Arizona. Get the calendar 👇

Andrew McCarthy

@AJamesMcCarthy
adcock_brett's profile picture. Founder @Figure_robot (AI Robots), @Cover_thz (Weapon Detection), @flyArcher (NYSE: ACHR), Vettery ($100M Exit)

Brett Adcock

@adcock_brett
xkcd's profile picture. I draw the comic xkcd

Randall Munroe

@xkcd
cadfem_germany's profile picture. Simulation is more than Software

CADFEM Germany GmbH

@cadfem_germany
ANSYS's profile picture. Empowering Innovators to Drive Human Advancement

Ansys

@ANSYS
speginel's profile picture. tweeting hand coded visuals · she/her · my nickname is procedurally generated

sleeping

@speginel
YamamotoPELab's profile picture. Professor, Ph.D., Power Electronics Laboratory, Institute of Materials and Systems for Sustainability (IMaSS), Nagoya University / Daito-ryu Aiki Budo / Karate

Masayoshi Yamamoto

@YamamotoPELab

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