@tdsepsilon profile picture
Tom @tdsepsilon

I am a computer engineer that has a passion for technology, tea and coffee. I am blogging about my various projects. My interests include SDR, FPGAs, and DSP

Joined October 2011
  • Tweets 5,468
  • Following 825
  • Followers 1,628
1,201 Photos and videos
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Tom@tdsepsilon
Feb 7
Just released my second iOS app called Wholegrain! It’s a film emulation and editing app with custom designed gain synthesis to give photos the look and feel of film 🎞️
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New film boarder generator in Wholegrain! Coming in the next update 🎞️
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Quick post for SharedModelKit intro teaandtechtime.com/sharedmod…

SharedModelKit a better way to use Ai models in iOS Apps

More and more iOS apps are using local ai models for running functions and chats to power advanced features and currently each downloads and stores their own large model to do this. If you have 3 o…

teaandtechtime.com
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Tom retweeted
Owen Brake
@OwenBrakes
May 4
The RF world is insane. Researchers recovered AES-128 keys from a Bluetooth chip by listening to its own antenna from 10 meters away. Crypto-engine switching noise couples into the RF chain, rides the 2.4 GHz carrier, and leaks out as radio.
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Tom retweeted
Luigi Cruz
@luigifcruz
5 Jan 2024
⚡️ First alpha version of CyberEther is now available on GitHub for Linux (Vulkan) and macOS (Metal). 🆕 Complete README with installation instructions and much more! 🦑 Portable flowgraph with GPU-accelerated blocks. 🔑 MIT Licensed 💚 More to come! github.com/luigifcruz/CyberE…
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Been seeing a lot of iOS apps run and download local llm models for running chats and features but given the space required I thought there should be a common package for sharing models, so I made one! It’s called SharedModelKit on GitHub now @GithubProjects
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more replies
To help show how to use it I also made a demo app called SharedModelChat that implements the package and a couple of engines as well.
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Here is the github project for demo app github.com/Tschucker/SharedM…

GitHub - Tschucker/SharedModelChat: Ai Chat app demonstrating the use of SharedModelKit swift...

Ai Chat app demonstrating the use of SharedModelKit swift package - Tschucker/SharedModelChat

github.com
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Tom retweeted
wavefnx
@wavefnx
Feb 20
open beam featuring the glasgow interface explorer
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Finally making some progress on my hybrid digital and film pi camera software :)
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Took a break from iOS app dev to get back to some electronics! Brushed off an old pi pico, wired up a few buttons and a display to control an old Bronica ETR lens shutter speed. It works but I need to figure out some better connectors for the lens pins…
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Tom retweeted
Enjoy Digital
@enjoy_digital
Feb 15
Open Assistant 🦞 on Open Source Hardware 🧠 @SipeedIO's PicoClaw running on LiteX NaxRiscv 64-bit SoC (on repurposed mining hardware :)) #RISCV #FPGA #LiteX
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Tom retweeted
hackaday
@hackaday
Feb 18
Bruteforcing Accidental Antenna Designs ift.tt/CvaRc4y

Bruteforcing Accidental Antenna Designs

Antenna design is often referred to as a black art or witchcraft, even by those experienced in the space. To that end, [Janne] wondered—could years of honed skill be replaced by bruteforcing the pr…

hackaday.com
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SDR expansion board works with radxa CM5 Wifi and Bluetooth also work after manual driver compilation. Next step is audio (speakers probably won't work but headphone jack and Bluetooth audio should)
Alex Orsholits@UTokyo@highvis_supply
Feb 17
Booted #clockworkpi #uconsole with @RadxaComputer #CM5 and #SDR breakout board
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Tom retweeted
Tom Verbeure@tom_verbeure
Feb 17
The Stunning Efficiency and Beauty of the Polyphase Channelizer tomverbeure.github.io/2026/0…
Diagram of a single channel polyphase filter bank

ALT Diagram of a single channel polyphase filter bank

Diagram of a multi-channel polyphase filter bank

ALT Diagram of a multi-channel polyphase filter bank

Spectrum of a signal with multiple channel

ALT Spectrum of a signal with multiple channel

Spectra of the individual channels at the exit of the channelizer

ALT Spectra of the individual channels at the exit of the channelizer

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Here’s an example of the Halation processing in Wholegrain check it out on the iOS App Store :)
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Thanks @petapixel for the post on Wholegrain :) petapixel.com/2026/02/12/pho…

Photographer's New App Gives Digital Photos a Realistic Analog Appearance

Embrace the grain.

petapixel.com
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My new film emulation app Wholegrain is now up on @ProductHunt check out the launch 🚀 and share some images you have edified with it :)
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producthunt.com/posts/wholeg…

Wholegrain: Advanced Film Emulation | Product Hunt

The Wholegrain film emulation app is a photo editing suite that combines traditional photo editing tools with advanced film emulation and unique analog film effects to craft photos that feel like...

producthunt.com
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Tom retweeted
Hackable Magazine@hackablemag
Feb 10
#FPGA facile : petite présentation et prise en main de #LiteX avec notre nouvel article offert de la semaine. À découvrir sans plus tarder sur notre base documentaire : connect.ed-diamond.com/hacka….
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