Larry the optimizer

If you appreciate my open source efforts, please support me on Github sponsors or Kofi: github.com/sponsors/bit... ko-fi.com/bitbank

New blog post "Really really fast GPIO on Linux" bitbanksoftware.blogspot.com/2026/10/real... cc @gadgetoid.com

Fale sua idade sem dizer sua idade: "Touch-Tone" (telefone) era uma novidade e precisava pagar mais para habilitar.

Tekenex's Vectino is a tiny dev board with a powerful Arm Cortex-M85 chip and Helium vector acceleration to crush heavy AI and DSP workloads.

Anbernic is making handheld repairs easier with official replacement parts for shells, screens, buttons, batteries, joysticks, and more. retrohandhelds.gg/anbernic-fin...

GPIO Breakout Board for XIAO. Thoughts?

Pro tip: The simplest way to be a "10x" programmer for RPI projects - ditch the RPI (any/all) and develop your software in a Debian VM running on an Apple Silicon Mac.

github.com/bitbank2/Fas... New - I shared a low power eink clock project that updates every minute (no flickering). It pulls the correct time/date from NTP every day and a half and uses the ESP32's RTC to keep the time. It can last for months on a small battery using ESP32's deep sleep.

Some new devices landed on my desk over the past few days. Waveshare AMOLED 2.16 ESP32-S3 (480x480), M5 Paper Color (ESP32-S3 w/ 4" Spectra6), NM-CYD-C5 (not shown) and the GKD Pixel2 (nostalgia machine). Each quite impressive in their own way. I added them to my display libraries (not the GKDP2😜)

PJRC website and email are down today. Hosting company is replacing the server's SSD.

Brett Gossage has put together a ten-minute video guide to using USB MIDI with Teensy, including how to interface a classic 5-pin MIDI DIN connector to a modern Digital Audio Workstation. Older content but still applies to latest Teensy models. www.pjrc.com/usb-midi-how...

New blog post - ESP32-P4 SIMD Explained: bitbanksoftware.blogspot.com/2026/04/esp3... #ESP32P4 #SIMD #GIF

@shapoco.net If you point me to the 3D renderer source code, I can tell you if I can optimize it with ESP32-S3 SIMD.

Testing...

Need more speed with your GIF animations on the ESP32-S3? I wrote some new SIMD code which speeds up playback another 20-25% github.com/bitbank2/Ani...

@snazzylabs.com Thanks for the shoutout in your latest video about TRMNL; it's nice to be appreciated for my work. You give me a little too much credit. These B/W EPDs are all basically identical hardware, but some are missing features in the controller firmware. www.youtube.com/watch?v=YWw5...

Shiver me timbers!!! After nearly six years at Tom's Hardware I am heading off for new horizons! Pimoroni, purveyors of maker toys, tools and kits has added me to its crew! From April 1st I will be Pimoroni's Content Editor. Creating content to inpsire everyone to be a maker! youtu.be/q1FYxBLDyQk

@fasani.bsky.social created something unexpected - a parallel Eink PCB (Sensoria) based on the ESP32-C5. This chip is faster than the ESP32-S3 and has 5GHz WiFi. Now added to my FastEPD library.

**New** I created an #ESPHome display component wrapper for my bb_epaper library. This means that using e-paper on ESPHome devices just got a lot easier. For IoT devices with integrated displays (e.g. this one), 1 line of yaml defines it! (plus flicker-free updates). youtu.be/-B1YK6_o7dI

trmnl.com/blog/custom-...

New sensoria C5 PCB sent to fabrication today Thanks to @fast-code-r-us.bsky.social for reviewing my schematics. This is the hardware sensor and reports visualiser from sensoria.cat projectPC

New release for mid February: 1.1 version of #Raspberry Pi (Zero2W and 4 versions) parallel Epaper monitor, great for monitoring of displaying your sensors information. Framerate around 12 frames per second. Designed in team with @fast-code-r-us.bsky.social Anyone interested? Please RT & comment

This tiny pocket-friendly e-reader is packed with frustration and potential

New product taking shape - a #RaspberryPi AMOLED display HAT. It works on RPI Zero/1/2/3/4. Hi-res, super saturated colors and wide viewing angles. This one is 460x460 with capacitive touch. Excellent for gaming too (it's fast). Who's interested?

New KiCad project shared to Github - my RPI to UNO LCD shield HAT. Allows use of high speed parallel (and cheap) LCDs. github.com/bitbank2/RPI...

I got inspired today to write some Arm NEON SIMD code. This allows fast 150% stretching (with pixel averaging) of emulated games on the RPI 02W. No need for fbcp or devicetree drivers for the LCD - this is my GBC emu using bb_spi_lcd to draw directly on the ST7789 SPI LCD. youtu.be/eqq6glU0Sl0

New blog post for the new year: bitbanksoftware.blogspot.com/2026/01/lcds...

I just shared a new C++ example project which allows you to easily flip through a series of GIF animations and display them on a Raspberry Pi "HAT" LCD: github.com/bitbank2/rpi... Video demo: youtu.be/m-PzmW8scac

Parallel GPIO on the original RPI 1 and ZeroW can do interesting things too (e.g. drive QSPI displays), but the single core Armv6 CPU is too slow for modern projects of any type. RPI Z2W is the minimum useful board. This GIF player runs at 50fps (360x360 pixels) on the Z2W - much slower on the ZW.

New experiment this weekend - driving QSPI LCD displays on the #RaspberryPi GPIO header: youtube.com/shorts/3yqpt...

Started finally tackling a mobile layout on the existing Pinout…

🚨 NEW PRODUCT KLAXON 🚨 Introducing Badgeware - the next generation of wearable, hackable badges from your friends in Sheffield-on-sea. Now with tough colourful exteriors, built in batteries, and much, much more... <3 badgewa.re

For SDL fans, I just added an example to my AnimatedGIF library which plays GIF animations in a SDL window. Tested on MacOS (homebrew) and Linux: github.com/bitbank2/Ani...

Anyone got code for getting detailed system stats out of Windows - CPU temps, fan speeds etc - and into a REST API or Python for UART comms?

I tweaked the waveform I use to drive the 8-bit parallel ILI9341 LCD. Now it's gone from fast to absurdly fast. The 320x240 GIF is playing at 220FPS. youtu.be/uxlJFMY6EBg

Black Friday / Cyber Monday - NEW DEALS! Smart home, kits & components: shop.pimoroni.com/collections/... shop.pimoroni.com/collections/...

Now in stock at @pimoroni.com shop.pimoroni.com/products/kee...

New toy - Waveshare 1.54" ESP32-S3 e-paper thing. I added support for it to bb_epaper as a named device (1 line init). Good power circuitry, sensors, good price.

Just finished Hacking the Pill Camera that you'd swallow for an easy endoscopy Ti CC1310 SoC Glitched and Dumped which allowed to Reverse Engineer its firmware and RF Protocol up to full Image receiving🥳 No security included but short range. 📽️🎬 here: youtu.be/qEIW5gOLzIs

New idea - use the #Raspberrypi to directly drive parallel Eink displays. Pictured - Kindle 6" 1024x758 34pin panel driven by a RPIZ2W and (one of a kind) custom PCB. youtube.com/shorts/LwGyG... Benefits - the RPI (or any Linux SBC) can create/push the pixels faster than any ESP32. low cost SBC.