@rc2014 Also wanted to say the new #RP2040 VGA Terminal board is worth it... Works so well and the menu to configure it is quite nice.

#Z80 CPU from 1978, and the #RP2040 VGA Terminal board; both boards from @rc2014 for the #RC2014

Looking forward to slowing down the clock board and seeing if this old CPU fires up...

#retrocomputing

It’s totally normal to know which frames of Badapple are a pain to run length encode, right? (Video of an #RP2040 playing Badapple over HDMI shaped DVI coming soon…)

"I2C is an ubiquitous serial bus first described in the Dead Sea Scrolls, and later used by Philips Semiconductor."

Nice snark in #rp2040 data sheet, not sure how I missed that one before. Well played.

This could be really handy for future #RP2040 based #retrocomputing projects.

https://www.hackster.io/news/dmitry-grinberg-s-romram-adds-8mb-of-external-ram-to-the-humble-raspberry-pi-rp2040-27f2d7363f10.amp

CTCSS tone generator for my old Expert4 #23 FM-Transmitter in test setup.
#Hamradio
Hardware is based on a Seed-Studio XIAO #RP2040 board, using PDM via PIO and a simple RC low pass.
Cardboard for short circuit protection.

Today I have discovered #PicoGUS, an ISA soundcard for DOS PCs powered by a Raspberry Pi Pico. The amount of hardware hacking going on these days is incredible. Microcontrollers were a great idea. #RaspberryPiPico #RP2040 #DOSGaming #MSDOS #RetroGaming #RetroComputing

En conclusion, ce fut un projet intéressant. Il y avait sûrement moyen d’utiliser le #RP2040 différemment pour obtenir un résultat similaire, d’autres l’ont fait. J’aurais pu mettre de côté tout le rééchantillonnage et faire varier la fréquences avec l’horloge du µC, avec les limites que ça implique.

Voici Picogen assemblé et monté. Les étiquettes sont probablement provisoires, en attendant de trouver mieux (et la motivation de le réaliser). J’ai pu faire quelques tests, cette fois-ci sur une interface audio plutôt que sur l’oscilloscope. Globalement je suis satisfait du résultat, sauf peut-être au sujet de la distorsion harmonique qui demeure significative.

Je détaille ça dans les messages suivants. 🧵

#electronics #DIY #RP2040

So what's the big appeal of an #rp2040 over the family of #esp32 chips out there?

Just being able to brute force bitbang whatever you want?

IT LIVES!

Please welcome to the world the #PsiDrive, a #Psion USB SSD Drive using a #RaspberryPiPico.

This works with the SSDs that were used with the SIBO range of computers, including the Series 3 and MC400.

This prototype can only be used to dump SSDs, but future versions of the firmware will let you write to RAM SSDs, and future versions of the board will let you write to Flash SSDs.

#retrocomputing #retrodev #rp2040 #pcb #90s

A bit of Sunday morning fun implementing a PIO frequency counter on #rp2040 - works very nicely and allows for some long counting. Also allowed me to implement HCF on PIO which was mildly pleasing.

https://graeme-winter.github.io/2023/08/2023-08-20.html

TL;DR turns out that even crystal clocks vary quite a bit - as much as half a second a day - which gets me wondering what you do for a _really_ accurate time base? GPS receiver?

I like #Go and I like the #RaspberryPi #RP2040. Can I use the one to program the other? It turns out, thanks to the #TinyGo project, I can.

https://blog.smittytone.net/2023/08/19/go-program-the-raspberry-pi-pico-with-go/

Brunelles is my new guitar pedal project made around some spare parts. This is a kind of upgrade of my Aelis platform (based on the Spin FV-1 DSP).

Controls:
– Rotary encoder + switch
– Endless potentiometer
– 128×64 OLED display
– Footswitch + LED

Features:
– µC: XIAO #RP2040
– Codec: CS4272 (or 71)
– True bypass

It’s the first time I use mostly SMD components. I’m not very happy with the routing but I have to start somewhere.

#audio #fx #electronics #diy

NEW GUIDE: Adafruit Feather RP2040 RFM95 #AdafruitLearningSystem #RP2040 #LoRa @adafruit

https://blog.adafruit.com/2023/08/15/new-guide-adafruit-feather-rp2040-rfm95-adafruitlearningsystem-rp2040-lora-adafruit/

#Adafruit

I am trying to make two RaspberryPi Pico talk UART with each other, but their serial port sends nothing in the configured pins, even when I wait until the TX buffer is empty.

I am using the #rp_pico HAL in rust, with the code in https://github.com/nils-van-zuijlen/splitflap/tree/multithread/module-driver/src

The UART peripheral gets configured in main.rs, the data sending gets done in parser.rs

#rustlang #rp2040 #RustEmbedded #embedded

J'essaye de faire communiquer entre elles deux RaspberryPi Pico en UART, mais leur port série n'envoie rien sur les pins, même une fois que le buffer d'envoi est vidé.

J'utilise la HAL #rp_pico en rust, avec le code qui est dans https://github.com/nils-van-zuijlen/splitflap/tree/multithread/module-driver/src

Le périphérique UART est configuré dans main.rs, l'envoi de données est fait dans parser.rs

#rustlang #rp2040 #RustEmbedded #embedded

GrblHAL CNC Controller Based on RP2040 Pico - [Phil Barrett] designed a new CNC controller breakout board called the PicoCNC whi... - https://hackaday.com/2023/08/11/grblhal-cnc-controller-based-on-rp2040-pico/ #microcontrollers #cnchacks #grblhal #rp2040 #grbl #cnc

Running DOOM in a Keycap Takes Careful Work - Shoehorning DOOM into different hardware is a classic hacker’s exercise, and [TheK... - https://hackaday.com/2023/08/09/running-doom-in-a-keycap-takes-careful-work/ #raspberrypi #rp2040doom #keycap #rp2040 #games #doom

Lost several hours of my life tracking down a weird bug where an #RP2040 based USB #MIDI device wasn't recognised by the #MPC One. I eventually solved it by shortening the product name. The limit is supposed to be 31 characters, but the MPC doesn't seem to like more than 10. I think there's more to this bug than just the length, though.
#synthdiy