An RPN Calculator and a Bonus VFD Clock From Casio Revival https://hackaday.com/2026/01/05/an-rpn-calculator-and-a-bonus-vfd-clock-from-casio-revival/
#Clockhacks #Microcontrollers #CasioMini #Clock #ESP32 #Rp2040 #RPNcalculator #Vfd
An RPN Calculator and a Bonus VFD Clock From Casio Revival https://hackaday.com/2026/01/05/an-rpn-calculator-and-a-bonus-vfd-clock-from-casio-revival/
#Clockhacks #Microcontrollers #CasioMini #Clock #ESP32 #Rp2040 #RPNcalculator #Vfd
So, a while ago I assembled a #piantor, hotswap sockets and Pi pico usb-c clone, and yesterday I got around to testing it. Everything worked fine, except for one single key on the left half. After probing around using a multimeter, and using the digital microscope I bought on a whim, I found what looks like a cold joint on the pin on the #RP2040 the key is connected to.
I don't have a hot air station nor a reflow oven nor a tip fine enough to fix it, so I'll need to replace the Pi I think 😢
Different Algorithms Sort Christmas Lights https://hackaday.com/2025/12/29/different-algorithms-sort-christmas-lights/
#News #Algorithm #Christmas #Led #Lights #Programming #Rp2040 #Sort #Ws2812
1/2
A RP2040 can also synth!
(code running is the example from https://github.com/todbot/mozzi_experiments/blob/main/eighties_dystopia_rp2040/eighties_dystopia_rp2040.ino)
Anyone know the deal with the #ESPHome `rp2040_pwm` output component? It exists, but it's undocumented and I can't find any reference to in on the ESPHome website 🤔
24bit color effects on 2x 64x64 HUB75 displays:
https://www.reddit.com/r/raspberry_pi/s/WEZkERPd73
Wrapped up my latest custom #keyboard today. It’s a single handed keeb designed exclusively for playing #ArcRaiders . Designed in TinkerCad and #3dprinted on my #Prusa mk4. Then hand painted with Panduro Hobby Acrylics and dusted with weathering powders. Running #kmk on a #seeed Xiao #rp2040. #circuipython #kmk
My 36-key #RP2040-powered custom #MechanicalKeyboard is almost ready! I now need to flash it, but I can't say I'm impressed by any of the popular firmware projects. 😒 My gripe spans from GitHub being used as a synonym for version control system, pipe-to-Bash of random scripts, toolchains hard to reproduce, etc.
From the #DECtalk Mini github repository I commpiled with the #Pico-SDK today the RPi #RP2040 Pico version and changed it
from USB serial 115.200 Baud
to GPIO0/1-TTL-Serial 9600Baud.
Sounds fine on the left 3.5mm Audio channel
(GPIO28/Pin 24) of a
#Olimex RP2040-Pico-PC Board :)
https://github.com/dectalk/DECtalkMini
https://github.com/dectalk/DECtalkMini
Made some progress on prototyping a #RP2040 based #USB Audio interface. I got a PIO program to output a good looking TDM signal for 4 channels of 32-bit samples.
Now I can start prototyping the receiving end of the transaction, DMAing samples into RAM and packing them into isochronous USB packets.
#Hardware #PiPico #RaspberryPi #EmbeddedC #Audio #Microcontroller
New Macropad Hotkeys II release is out! If you need a configurable macropad for DaVinci Resolve, Audacity, Zoom, BG3, whatevs - this release should be what you need. Configure multiple pages of hotkey macros to scroll through, with starter configs in the wiki:
https://github.com/deckerego/Macropad_Hotkeys
Built for the @adafruit Macropad!
Il me tarde de trouver du temps pour jouer avec la carte FPGA la moins cher du marché !
I am slowly getting better at soldering, 4 out of 7 successful #MechanicalKeyboard PCBs now - all three of my diode-free #GraphTheory wired keyboard PCB designs have worked (eventually) ⌨️🎊
1️⃣ #RaspberryPiPico #RP2040 ‘Gamma Omega TC36K’ (USB only) http://astrobeano.blogspot.com/2025/08/my-first-self-built-computer-keyboard.html
2️⃣ #ProMicro #nRF52840 BLE ‘Gamma Omega Hesse’ https://astrobeano.blogspot.com/2025/10/hesse-diode-free-bluetooth-keyboard.html
3️⃣ #SeeedStudio #Xiao #SplitKeyboard BLE split Forager ‘Acid’ http://astrobeano.blogspot.com/2025/10/partial-heawood-forager-keyboard.html
Have you ever been Doing a Thing on a different hardware platform and said to yourself, "Self, this would be so much easier on an RP2XY0 using DMA and the PIO blocks!" (Even though for other reasons you can't switch hardware)
#Pico2 #rp2040 #electronics #embedded #clickyclickclickclickclick
@easytarget the article mentions #RP2040 and #ESP32. Does anyone know how #Enshittification proof their organizational structures are?
Let's go 👌
**Библиография:**
Reticulum Network Stack — Официальная документация и техническое описание.
Mark Qvist. *Reticulum: A Resilient Communication Stack for Building Local and Wide-Area Networks*.
GitHub — Репозиторий Reticulum Network Stack и аппаратных интеграций.
LoRa SX127x/SX128x — Документация Semtech по радиомодулям малой мощности.
Raspberry Pi Foundation — Материалы по построению сетей на базе SBC.
AX.25 Specification — Пакетный радиопротокол, используемый в любительских радиосетях.
KISS TNC — Техническое описание протокола для терминальных узлов.
**Хэштеги:**
#Reticulum #RNS #MeshNetwork #LoRa #OffGridComms #DecentralizedNetworking #RadioMesh #AltNet #DistributedComms #CryptoRouting #SecureNetworking #AutonomousNetworks #LoRaWAN #SBC #RaspberryPi #ESP32 #RP2040 #OpenHardware #SurvivalComms #EmergencyComms