Got #FujiNet talking to a #RasberryPi #Pico via USB! The Pico is acting as a simple RS232 adapter (board borrowed from my Smith-Corona typewriter teletype project). The FujiNet uses the Pico for serial communications instead of GPIO. Why? Because this lays the groundwork for interfacing to other systems, such as Atari 2600, MSX, #A2Pico, or direct bus access plus ROM emulation via #RaspberryPiPico.

Sand Drawing Table Inspired By Sisyphus https://hackaday.com/2025/06/30/sand-drawing-table-inspired-by-sisyphus/ #RaspberryPiPico #RaspberryPi #MiscHacks #sandtable #ece4760 #sand #Art

Sand Drawing Table Inspired By Sisyphus - In Greek mythology, Sisyphus was a figure who was doomed to roll a boulder for ete... - https://hackaday.com/2025/06/30/sand-drawing-table-inspired-by-sisyphus/ #raspberrypipico #raspberrypi #mischacks #sandtable #ece4760 #sand #art

Meet Cucumber, The Robot Dog https://hackaday.com/2025/06/27/meet-cucumber-the-robot-dog/ #RaspberryPiPico #RobotsHacks #robotdog

Meet Cucumber, The Robot Dog - Robots can look like all sorts of things, but they’re often more fun if you make t... - https://hackaday.com/2025/06/27/meet-cucumber-the-robot-dog/ #raspberrypipico #robotshacks #robotdog

The #RaspberryPiPico PIO programs consist of assembly and C code. This is a bit difficult for editors, like #emacs. So someone clever created poly-mode, which lets you have both asm-mode and c-mode in the same buffer!
https://log.beshr.com/emacs-polymode-pi-pico/

Had my first encounter with a Raspberry Pi Pico today.

I needed a MCU that could enumerate two USB serial ports to a host, have a UART interface for an external device, and control a heap of GPIOs. The RPi Pico was a little light on GPIOs, but add a couple of I²C expanders, and we were in business. The idea was one USB serial interface (call it port 1) would be for control commands, and serial traffic on the other (port 2).

The UART on the thing is hooked up to a multiplexing circuit with two RS-485 transceivers and a TTL buffer, so via port 1, I can put port 2 into any of: TTL serial, RS-485 (via either transceiver), or RS-422 (both transceivers, using one for receive and the other for transmit). The GPIOs sense things through optical isolators and tickle devices via reed relays.

Haven't wired the thing up yet, but TinyUSB has a dual CDC-ACM example that was a doddle to get going on the Pico… so I don't expect it to be a big job.

Not sure if this can be done in #MicroPython … I think I'll be using C, but that's fine, C will get the job done.

Tomorrow should be interesting.

Converting an E-Paper Photo Frame into Weather Map https://hackaday.com/2025/06/21/converting-an-e-paper-photo-frame-into-weather-map/ #Microcontrollers #RaspberryPiPico #SoftwareHacks #RaspberryPi #weathermap #TechHacks #hardware #e-paper #e-ink #Art

Converting an E-Paper Photo Frame into Weather Map - Here’s a great hack sent in to us from [Simon]. He uses an e-paper photo frame as ... - https://hackaday.com/2025/06/21/converting-an-e-paper-photo-frame-into-weather-map/ #microcontrollers #raspberrypipico #softwarehacks #raspberrypi #weathermap #techhacks #hardware #e-paper #e-ink #art

Retro just got Modern!
In today’s video on DevWithZachary, I explore the Clockwork PicoCalc — a tiny yet mighty handheld computer powered by the Raspberry Pi Pico.

With just 264KB of memory, this device can run C, C++, Python, and Lua — proving that powerful programming doesn't always need modern specs.

What can you really achieve with less than 300KB? Let’s find out.
Watch here: https://youtu.be/3dSFMKGKUvM

Upgrading An Old Espresso Machine https://hackaday.com/2025/06/14/upgrading-an-old-espresso-machine/ #espressomachine #RaspberryPiPico #RepairHacks

Upgrading An Old Espresso Machine - The Francis! Francis! X1 espresso machine in its assembled state. (Credit: Samuel ... - https://hackaday.com/2025/06/14/upgrading-an-old-espresso-machine/ #espressomachine #raspberrypipico #repairhacks

I've made *many* little SynthDIY boards over the years, targeting: low-cost, for newbies, Pico & CircuitPython. Here are some.
I've never been quite satisfied w/ the results.
Maybe the solution is more knobs & more choc keyswitches?
Good idea?
#SynthDIY #RaspberryPiPico #CircuitPython

#piSpot Projekt.

Ursprünglich war gedacht mittels #RaspAP und #PiHole einen mobilen Hotspot zu bauen.

Mögliche Internetquellen sollten sein
#eth, #wlan, #wwan + optinal #vpn oder/und #Tor.

#RaspberryPi und #RaspberryPiPico sind als Ziel-Hardware gedacht.

Captive Registrierung sollte automatisch erfolgen und im Passwort-Zweifel auch vom Terminal aus bedient werden können.

Ich hatte das zu 90% ziemlich schnell realisiert - und schon 2 Tage lang in der Stadt alle möglichen Wlan getestet.
1/3

When Wireless MIDI Has Latency, a Hardwired Solution Saves the Day - [Moby Pixel] wanted to build a fun MIDI controller. In the end, he didn’t build it... - https://hackaday.com/2025/06/07/when-wireless-midi-has-latency-a-hardwired-solution-saves-the-day/ #raspberrypipico #musicalhacks #bluetooth #latency #esp32 #music #midi

When Wireless MIDI Has Latency, a Hardwired Solution Saves the Day https://hackaday.com/2025/06/07/when-wireless-midi-has-latency-a-hardwired-solution-saves-the-day/ #RaspberryPiPico #MusicalHacks #bluetooth #latency #ESP32 #music #midi

For the last month or so I've been working on seeing how far I can push CircuitPython into emulating a TB-303 bass synth. With the new audiofilters library, you can "stack" filters to make two two-pole filters seem like a 4-pole filter, getting close to that squelchy sound we need. My efforts so far:
https://www.youtube.com/watch?v=1AflpXbEIno
#circuitpython #tb303 #synthdiy #raspberrypipico

Create a small, weather monitoring system with a #raspberrypipico and @openmeteo 's APIs. This #DIY tutorial guides you through all the steps, even if you are a beginner, explaining the code line by line https://peppe8o.com/raspberry-pi-pico-weather-monitor/

PentaPico: A Pi Pico Cluster For Image Convolution https://hackaday.com/2025/05/20/pentapico-a-pi-pico-cluster-for-image-convolution/ #parallelprocessing #Microcontrollers #imageconvolution #RaspberryPiPico #RaspberryPi #cluster