Blogged: "HowTo: Fix your ESP32 C3’s Bootloader after you messed it up!"
deltalima.orgHowTo: Fix your ESP32 C3's Bootloader after you messed it up! « DeltaLima.org
#esp32c3
1 Beitrag1 Beteiligte*r0 Beiträge heute
I've been playing with an esp32-c3 super mini, testing out a home monitoring idea and quickly run into a tall wall regarding power use. The device is now just a simple BLE temperature sensor that wakes up every minute from deep sleep to advertise. Hooking it up to a power module powered by 9v battery supplying 3.3v, the battery got depleted within 15 minutes 
Also, there's no way I can put this sensor around the apartment where even just one wall prevents scanners from picking up its payloads.
It’s time for new projects. Like this small version of the Space Clock as an LED matrix.
It opens up even more possibilities.
We have a domain now! It doesn't do much so I added a preview of the thing! Kicad generating the model as glb and used Google's Model Viewer library to render it directly in your browser!
(This is not affiliated to or even related to other products or companies named or named around sidekick or meet sidekick or more!)
More multi-SPI display messing around. This time using Waveshare Zero format boards, finding a common way to drive them from a RP2040, ESP32S3 or ESP32C3.
I hadn't realised SPI on the ESP32S3 was so complex!
(or that finding some common physical pins across the range required so much software messing about too).
https://diyelectromusic.com/2025/07/20/arduino-with-multiple-displays-part-2/
Fortgeführter Thread
Part 6 pairs the Synth module with a XIAO expander for some simple IO.
https://diyelectromusic.com/2025/06/29/xiao-esp32-c3-midi-synthesizer-part-6/
First steps with the XIAO ESP32-C3 and SAM2965 based Synth module.
https://diyelectromusic.com/2025/06/26/xiao-esp32-c3-midi-synthesizer/
Supports power input via USB-C or an external power source
Success on real hardware!
This is the f9 microkernel ported to RISC-V, specifically ESP32C3, by Ruben Sevaldson, a former student of mine at NTNU in 2022 – plus a small Lisp machine running on top.
Now let's see why this doesn't work in qemu for esp32c3...
https://github.com/rubensseva/f9-riscv
https://github.com/f9micro/f9-kernel
ANAVI Miracle Emitter successfully funded on @crowdsupply Huge thanks to all our amazing backers! 
Check out our latest blog post to learn more about what’s next:
https://blog.anavi.technology/anavi-miracle-emitter-successfully-funded-on-crowd-supply/
#crowdfunding #opensource #esp32c3
Thanks to your amazing support, our ANAVI Miracle Emitter campaign at @crowdsupply wrapped up successfully! Backers from 7 countries helped bring this open-source NeoPixel controller to life. 
Production is nearly complete, and shipping starts soon! Stay tuned for more updates! 
#OpenSource #ESP32C3 #NeoPixel
Automate your home with Home Assistant + ANAVI Miracle Emitter!
Control addressable LEDs via MQTT or WLED - fully open source.
Stunning effects, full control from any device, seamless integration. Final hours of our crowdfunding campaign at @crowdsupply back now for free US shipping & current prices!
https://www.crowdsupply.com/anavi-technology/anavi-miracle-emitter/updates/home-automation-with-the-anavi-miracle-emitter
#homeassistant #neopixel #esp32c3 #esp32 #wled #opensource #crowdfunding
How to control NeoPixel WS2812B LED 2D panels with the popular open source firmware WLED and our open source hardware ANAVI Miracle Emitter with ESP32C3? Check out our step-by-step guide and get glowing! 
https://blog.anavi.technology/wled-2d-panels-neopixel-ws2812b-esp32/
#WLED #ESP32 #ESP32C3 #opensource
Fortgeführter Thread
#CanGrow v0.2 kann für den #ESP8266, den #ESP32, #ESP32C3 und #ESP32S2 gebaut werden. Auf dem ESP32-S2 gibt es noch ein paar Bugs, wie z.B. das bei verbundenem WLAN keine Netzwerke gescannt werden können.
Falls ihr die Entwicklungsversion der neuen Version ausprobieren wollt, so findet ihr sie im Branch "firmware-v0.2-dev" https://git.la10cy.net/DeltaLima/CanGrow/src/branch/firmware_v0.2-dev
Mit dem Script "cangrow.sh" kann unter Debian 12 schnell eine Build Umgebung erstellt und die Firmware übersetzt und auf den ESP hochgeladen werden.
La10cy.net ForgejoCanGrowAn easy-to-use and free configurable D.I.Y. Arduino plant grow box controller / automation firmware for ESP8266 / ESP32 with WebUI
Weekend hobby project: how to install WLED directly from a web browser to ANAVI Miracle Emitter, an open-source hardware development board with XIAO #ESP32C3 #RISCV ? WLED is a popular open-source project for controlling NeoPixelLEDs. It supports ESP32 and ESP8266 MCUs and runs a local HTTP server with a modern UI.
As you can see in the video, setting up WLED is incredibly easy. You can install and configure it directly from a web browser, with no coding required!
https://youtu.be/bktjlJ_jN0U?si=gol9qGW4riOLMUqH
A miniature ESP32C3 based MIDI note monitor.
https://diyelectromusic.com/2025/02/14/esp32c3-oled-mini-midi-montor/
Just had a bit of a deep-dive into two new topics:
First: Various I2C connections - Stemma, Qwiic, etc
Then: A cheap, and largely undocumented ESP32C3 OLED board.
https://emalliab.wordpress.com/2025/02/11/stemma-grove-qt-gravity-duppa-i2c/
https://emalliab.wordpress.com/2025/02/12/esp32-c3-0-42-oled/
How to install Micropython on an ESP32-C3 Super Mini
https://makertube.net/videos/watch/aa8863b9-b2e1-4acd-ac9e-e917e1ff5fb1