diyelectromusic, to SynthDIY
@diyelectromusic@mastodon.social avatar

Building a dual envelope generator, at least in code if not in electronics, using the dual DACs on an ESP32 WROOM module.

https://github.com/diyelectromusic/sdemp/tree/main/src/SDEMP/ArduinoESP32DACEnvGen

#SynthDIY #ESP32

santiago, to random
@santiago@masto.lema.org avatar

One nice feature of #atomique is that I can just bookmark posts here to add the URL to my read-it-later or watch-it-later list. One tap.

Even better: since I haven’t worked much this feature isn’t ready at all so I don’t actually read them. So it works exactly like Instapaper in practice !

santiago,
@santiago@masto.lema.org avatar

I thought about Rust as this is very portable in the Terminal world. The crazy part of me considers using even C++. That same crazy parts wants it to run on #ESP32 devices too.

diyelectromusic, to SynthDIY
@diyelectromusic@mastodon.social avatar

I've been messing around with PWM for audio on the original ESP32.

Details here: https://diyelectromusic.wordpress.com/2024/03/31/esp32-and-pwm/

#SynthDIY #LateToTheParty

diyelectromusic,
@diyelectromusic@mastodon.social avatar

And now with some simple analog control and the option to feedback back one wave into another for some basic frequency modulation.

https://diyelectromusic.wordpress.com/2024/04/03/esp32-and-pwm-part-3/

https://makertube.net/w/tktp1Mhz6y8uzrXjXpTKt8

#SynthDIY #ESP32 #PWM

rubenwardy, to Electronics
@rubenwardy@fosstodon.org avatar

PCB assembly is done! I've also measured it for an enclosure. Next is integration testing, designing the enclosure, and programming. I'll probably remove some of the headers after testing

This is my first PCB and is for a plant watering system

#electronics #esp32

The PCB in an enclosure

section77, to esp32 German

...dann wollen wir den Hasen mal aus dem Sack lassen: wir haben für den in der Edition für den zum ersten mal eine eigene Platine entworfen! Und: darauf sitzt jetzt ein Morgen geht's los! :D https://github.com/section77/eggbot77/

EggBot77 in der Edition für den EasterHegg 2024
Platine des EggBot77 in der Edition für den EasterHegg 2024

linux_mclinuxface, to esp32
@linux_mclinuxface@fosstodon.org avatar

Anyone have any experience with these Cam modules?

I installed the example camera code and it works, albeit with pretty low quality, but it makes an audible crackling noise only whilst streaming. It sounds like a faint old school spinning hard disk.

It’s unnerving since the module has no moving parts. 😬

diyelectromusic, to esp32
@diyelectromusic@mastodon.social avatar

Something else I've been meaning to do for ages - I've started playing with some ESP32 modules. This is how I got up and running to the point of running one of my Mozzi sketches on an ESP32-WROOM-32D using the ADC inputs and the DAC output.

https://diyelectromusic.wordpress.com/2024/03/19/esp32-and-mozzi/

jaks, to esp32 Polish
@jaks@pol.social avatar
stfn, to hamradio
@stfn@fosstodon.org avatar

New blog post!

I'm writing about Meshtastic, a decentralised, peer to peer communication network that uses LoRa radios.

My initial experiences with it are not that positive, but I learnt a lot along the way, and thought it would be useful to share with the world what I found out so far.

There's a bit about frequencies, antennas and all that hamradio stuff.

https://stfn.pl/blog/28-intro-to-meshtastic/

Olly42, to DOOM

Doom on a electric toothbrush.

Running the game Doom on the tiny color display of an commercial electric toothbrush.

The Toothbrush contains an ESP32-C3 microcontroller (4MB Flash). With the codebase from Spritetm and miniwad data file, you are able to get the complete size of DOOM and WAD file down to the 4MB of the ESP32.

https://github.com/Spritetm/esp32c3-doom-bauble

#doom #retro #gaming #hack #esp32 #retrogaming #news #hashtaggames

image/jpeg

Teckids, to python German
@Teckids@bildung.social avatar

Bei den Grazer Linux-Tagen finden wieder zwei Jugend-Workshops von uns statt: Spiele programmieren mit #Python und LED-Animationen mit dem #esp32

📅 Samstag, 6. April, 11 bis 17 Uhr
🗺️ TU #Graz, Hörsaal i3
👶 #Kinder von 10 bis 16 Jahren

Im Programm der @linuxtage: https://pretalx.linuxtage.at/glt24/talk/9HD9CW/

Weitere Infos und Anmeldung: https://ticdesk.teckids.org/app/paweljong/event/froglabs-2024-glt/

#Coding #FediLZ #FOSS

francc, to esp32
@francc@mastodon.online avatar

Finally, I have the first complete working prototype of the temperature sensor for large-scale composting I was working on 🥳

The circuit uses the Xiao ESP32S3 board with a DS18B20 temperature sensor probe and three NiMH low-self-discharge cells.

The sealed enclosure is made with standard heat fusion water pipes of 1/2" and 1" diameter.

The measurements are sent over HTTP to a backend once per hour, with an expected battery life of 1 to 2 years.

🧵

Upper part of the enclosure
Enclosure

bettio, to programming

AtomVM v0.6.0 is finally out: https://github.com/atomvm/AtomVM/releases/tag/v0.6.0

For who does't know it: #AtomVM allows to run #erlang, #elixir, #gleam and also #lfe on MCUs such as the #ESP32, the #RaspberryPi Pico (2040) and some #STM32, but it also supports Linux and wasm.

ai6yr, to DOOM
@ai6yr@m.ai6yr.org avatar

Someone has ported Doom to... a "smart toothbrush" (!) https://www.youtube.com/watch?v=cO-Are8053g

danct12, to esp32
@danct12@fosstodon.org avatar

❓ DID YOU KNOW ❓

Espressif's ESP-IDF has cross compilers built for ARM64!

This means you can do ESP32 programming on an ARM64 device!

todbot, to DOOM
@todbot@mastodon.social avatar
governa, to esp32
@governa@fosstodon.org avatar
itnewsbot, to esp32

Avoid I2C Address Conflicts On ESP32 By Pin Muxing - Using hardware I2C on an ESP32? Do you need to connect multiple I2C devices with t... - https://hackaday.com/2024/02/28/avoid-i2c-address-conflicts-on-esp32-by-pin-muxing/

itnewsbot, to esp32

ESP32 Weather Station Looks Great With Color E-Paper Display - [educ8s.tv] has built weather stations before, but his latest is his best yet. It’... - https://hackaday.com/2024/02/28/esp32-weather-station-looks-great-with-color-e-paper-display/ #e-paper

dos, to kicad

Watch out, I'm a hardware designer now! My first board is here and it works!

Super happy with the "ambient light" effect:) There's one LED shining at the back into the hand, and another behind the screen, giving the impression of light passing through the PCB. Quite mesmerizing.

I still need to put side LEDs on (one for each of the touch pads), but those tiny SK6812-4020 turned out to be way beyond my amazing soldering skills 😅

#kicad #micropython #esp32 #fretsonfire

itnewsbot, to esp32

Internet Radio Built In Charming Cassette-Like Form Factor - You can listen to plenty of broadcast radio these days. There’s a lot of choice to... - https://hackaday.com/2024/02/25/internet-radio-built-in-charming-cassette-like-form-factor/

itnewsbot, to home

A Smarter Solar Water Heater - Installing solar power at a home is a great way to reduce electricity bills, espec... - https://hackaday.com/2024/02/25/a-smarter-solar-water-heater/ -assistant

itnewsbot, to esp32

Tiny Motion Detection Alarm Does the Trick - If you have mischievous children or forgetful elderly in your life, you might want... - https://hackaday.com/2024/02/24/tiny-motion-detection-alarm-does-the-trick/ #microcontrollers #motiondetection #motiondetector #seeedxiao #esp32-c3 #mpu6050 #alarm #imu

itnewsbot, to esp32

ESP32 Oscilloscope Skips Screen for the Browser - An oscilloscope can be an expensive piece of equipment, but not every measurement ... - https://hackaday.com/2024/02/23/esp32-oscilloscope-skips-screen-for-the-browser/

itnewsbot, to esp32

Solar E-Ink Weather Station Works on Dark Days, Too - One way to get through the winter doldrums is to take notice of the minuscule posi... - https://hackaday.com/2024/02/22/solar-e-ink-weather-station-works-on-dark-days-too/ #e-inkdisplay

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