ayke, 12 days ago to embedded

Added the Raspberry Pi Pico to https://play.tinygo.org/!
It's a simple board, but lots of people have it and it is very cheap. So it only makes sense to add it to the playground.

Thanks to @sago35 for the suggestion!

#TinyGo #simulation #embedded @Raspberry_Pi #RaspberryPiPico

stfn, 15 days ago to RaspberryPi

New blog post!

This one took weeks to write. It's about me finding a way to significantly reduce the power consumption of a Raspberry Pi Pico W working as a weather station, collecting environmental data.

I am also writing about powering the Pico using solar panels, and this time it's a success, my weather station can now run indefinitely, powered by the sun!

https://stfn.pl/blog/34-pico-power-consumption-solar-panels/

#RaspberryPi #RaspberryPiPico #Solar #offgrid

stfn, 28 days ago to RaspberryPi

I'm working on reducing the power consumption of a Raspberry Pi Pico W, and so far I managed to reduce the average power usage from 40mA to 6mA. Blog post incoming!

#RaspberryPi #RaspberryPiPico

todbot, 1 month ago to random

Several folks asked if they could get the little capacitive touch wheels I made as a badge add-on giveaway for Hackaday Supercon 2024. Now you can get them in my Tindie store!
Demo video of using two on a breadboard:
https://youtu.be/Db7S75eE-G8
Tinde link: https://www.tindie.com/products/todbot/touchwheel0-capacitive-touch-wheel/
More details on the code and board files if you want to make your own: https://github.com/todbot/touchwheels/
#CircuitPython #CapacitiveTouch #CapSense #Hackaday #Supercon #RaspberryPiPico

stfn, 1 month ago to RaspberryPi

I finally bought a USB meter and the findings so far are:

Raspberry Pi Pico with WiFi on is using 40mA all the time. Now that is a lot.

I could have bought a more precise meter.

I will be now investigating ways to reduce the Pico's power consumption.

#RaspberryPi #RaspberryPiPico

todbot, 1 month ago to random

More CircuitPython capacitive touch sensing madness w/ the Pico. Now I can do touch sliders and touch wheels. Is this board interesting to anyone else, should I put it in my Tindie store?
https://www.youtube.com/watch?v=n9cSR43akds
#CircuitPython #CapacitiveTouch #RaspberryPiPico

scruss, 2 months ago to random

Whee! #MicroPython on #RaspberryPiPico just got #USB device support!

It's very preliminary, and only in the nightly builds so far

https://docs.micropython.org/en/latest/library/machine.USBDevice.html#class-usbdevice-usb-device-driver

todbot, 2 months ago to kicad

Woohoo I am a KiCad master now! Or at least I know enough to default to it instead of Eagle. Finally. Plus I found a neat capacitive touch sensor chip that I got working in CircuitPython and Arduino on a Pico
#KiCad #CircuitPython #RaspberryPiPico #CapacitiveTouch

Two hands hold a blank PCB with 20 touch pads on one side and traces on the other. Underneath, two of the same kind of PCBs are plugged into a breadboard with a Raspberry Pi Pico and a grid of LEDs, and tapping on the pads lights up a corresponding LED.

diyelectromusic, 3 months ago to SynthDIY

I've added some notes on how to collect together the hardware required for a prototype PicoDexed, including how to use a cheap PCM5102 DAC with it.

I've also now uploaded a prototype UF2 file that can be used directly.

If you have a Pico and a DAC - feel free to give it a go! :)

https://diyelectromusic.wordpress.com/2024/02/18/raspberry-pi-pico-synth_dexed-part-5/

#PicoDexed #RaspberryPiPico #SynthDiy

@Raspberry_Pi

GurgleApps, 3 months ago to vscode

Join us tonight 7pm UTC for our live stream. Look forward to seeing you. Details in our promo below. Raspberry Pi Pico Pinout Coaster or VSCode Coaster Giveaway included. Link below takes you to the live stream & get notified!
@RaspberryPi_org
#vscode #electronics #raspberryPiPico

diyelectromusic, 3 months ago to SynthDIY

I appear to have rudimentary USB MIDI Device support now on my PicoDexed :)

https://github.com/diyelectromusic/picodexed

(I added SysEx the other day too, which I think is largely working...)

#RaspberryPiPico #SynthDiy #Dexed #DX7 #PicoDexed

AlgoCompSynth, 3 months ago to random

Introducing PicoVision (programmable audio-visual board for use with HDM... https://youtu.be/4lidGHZpKBM?si=2CYIiHbDvIenARvY via @YouTube

#Pimoroni #PicoVision #RP2040 #RaspberryPiPico

wisteela, 3 months ago to security

https://www.neowin.net/news/youtuber-breaks-bitlocker-encryption-in-less-than-a-minute-using-5-raspberry-pi-pico/
#bitlocker #raspberrypipico #security

diyelectromusic, 3 months ago to random

Has anyone overclocked a Raspberry Pi Pico? Is it really just a case of calling set_sys_clock_khz() - within reason?

#RaspberryPiPico

themagpi, 3 months ago to random

Happy Monday, everyone!

Hope you had a great weekend. If you're working on any Raspberry Pi or Pico projects we'd love to see a photo 👀

It might even end up in the magazine

#MagPiMonday

diyelectromusic, 3 months ago to SynthDIY

Part 3 of my experiments with Synth_Dexed on a Raspberry Pi Pico is now up.

TL;DR: It plays over MIDI! I have 10 note polyphony, albeit with a single voice, only on channel 1, and at the somewhat Lo-Fi sample rate of 24000.

But it works!

https://diyelectromusic.wordpress.com/2024/02/04/raspberry-pi-pico-synth_dexed-part-3/

#MIDI #PicoDexed #RaspberryPiPico #Synthdiy

polykit, 3 months ago to SynthDIY

Hell yeah, the wavetable oscillator can play samples as well 😜
Youtube: https://youtube.com/shorts/0vgNp93dHoU
#synth #synthesizer #wavetable #samples #RaspberryPiPico #synthdiy @synthdiy

diyelectromusic, 4 months ago to random

I've just put up the second part of my messing around with #PicoDexed - a build of Synth_Dexed for the Raspberry Pi Pico.

Summary: It is still only good for 5-note polyphony, but I'm starting to understand why and what I'd have to do about it. I'm still deciding if I want to...

All the gory details can be read here, along with my analysis of how the pico_audio library works.

https://diyelectromusic.wordpress.com/2024/01/21/raspberry-pi-pico-synth_dexed-part-2/

#SynthDexed #RaspberryPiPico #DX7

polykit, 4 months ago to SynthDIY

Next project is coming along. It's a wave table oscillator using #PIO from the #RaspberryPiPico and an 8-bit R-2R DAC. Idea is to morph between tables and have all sorts of CV inputs to change parameters. Currently I'm trying to get DMA for the ADC working to save some CPU cycles. This will end up in a module for my #Kosmo modular :fairydust:
#synthesizer #synth #synthdiy @synthdiy

Raspberry Pi Pico on a bread board with an 8-bit R-2R ladder DAC. There is a multi meter attached showing a frequency of 1.67kHz.

turi, 4 months ago to Electronics

Chiptune time!
This is a polyphonic, multitimbral DDS (Direct Digital Synthesis) library for Raspberry Pi Pico.

It has several waveforms, ADSR, and a sequencer supporting up to 8 channels.

Demo video: https://www.youtube.com/watch?v=MUQ7loauSa0

Source code: https://github.com/TuriSc/Pico-Sequencer-Synth

It's my C port of a C++ demo by Pimoroni, adapted to output audio via I²S or PWM, and with a few other tweaks. All bundled up in a module.

#rp2040 #chiptune #diyelectronics #clanguage #coding #electronics #opensource #synthesizer #raspberrypipico

axwax, 4 months ago to Electronics

I wonder if I should attempt a brain transplant tonight? 🤔

I previously tried a Pro Micro and DFPlayer to use custom samples on this delightful Salvation Army shop find, but the latency between hitting a key and getting a sound is just a bit too long to be of much musical use...

#electronics #SynthDIY #MusicMaker

The inside of the toy piano shows that I've previously soldered some of the buttons to an Arduino Pro Micro clone connected to a DFPlayer mp3 player module.