Mach3Controller
ESP32-A2DP
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Mach3Controller | ESP32-A2DP | |
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1 | 18 | |
12 | 1,399 | |
- | - | |
3.2 | 8.1 | |
over 3 years ago | 14 days ago | |
C++ | C++ | |
GNU General Public License v3.0 only | Apache License 2.0 |
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Mach3Controller
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Turn ESP32 into a keyboard, connect it to WLAN
I got it to work by having a python script that waits for specific packets then translates them to keystrokes. Python is compatible with Windows, Mac and of course Linux. The Keyboard library is very interesting and by using Python we can easily make wifi keyboards, controllers, etc. If you have control over the computer and can install python on it, this is easy to do. Here is my github project that shows a real world example. Receive.py is what you should look over. You don't have to use UDP, TCP would be more reliable but if it's just moving slides well then.... Yeah that's up to you lol.
ESP32-A2DP
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Retreive time & date, cellular signal strength and battery percentage information via Bluetooth on esp32
Whole thing is programmed using Arduino library in platformio and for a2dp sink im using pschatzmann library https://github.com/pschatzmann/ESP32-A2DP
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Esp8266 as a wireless audio streamer
The ESP8266 won’t work, since it doesn’t support Bluetooth. You’ll need an ESP32 and an I2S DAC. I built something similar based on this library: https://github.com/pschatzmann/ESP32-A2DP
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Synth with USB computer keyboard input and bluetooth speaker output
I want to turn a USB computer keyboard into a musical instrument where i can press a key and a sound is played on my bluetooth speaker. I have played around with https://github.com/pschatzmann/ESP32-A2DP and managed to hardcode a little tune and play it on the speaker. Unfortunately that alone already uses 80% of the esp32 flash memory and I need some more space to read the keyboard input and do a little bit of sound design on top of that. I’m looking for suggestions on a controller (combination of controllers) would be best suited for the job, with the constraint that it should have low power consumption.
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Audio and Arduino
Check out arduino-audio-tools and other libraries it can make use of, such as ESP32-A2DP. It's tailored towards ESP32 devices, but also supports the RP2040 and others.
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Outputting the AudioPLL to an external DAC
For all other i2s pinouts, I'm leaning on this GitHub-project: https://github.com/pschatzmann/ESP32-A2DP
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Sending data (wav files) from esp 32 to PC
You can use Bluetooth A2DP. This is the same standard used in Bluetooth headphones. Several implementations are available https://github.com/pschatzmann/ESP32-A2DP
- BT Transmitter from 3.5mm audio jack
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24bit 48kHz ADC and DAC recommendations for audio
A2DP library: https://github.com/pschatzmann/ESP32-A2DP
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Use of ESP32 as Bluetooth audio receiver
I recently discovered that the ESP32 could be used to receive audio via Bluetooth and since I'm using one as part of my build anyway (for controlling peripherals and LED outputs) I was thinking to just use the ESP32's onboard Bluetooth rather than a dedicated chip/module. After looking through some example code and the ESP32-A2DP library, I feel confident that this would work but is anyone able to see any caveats in doing this other than not being able to support aptx?
- esp32 to aux in
What are some alternatives?
Makelangelo-firmware - CNC firmware for many different control boards and kinematic systems. Originally the brain of the Makelangelo art robot.
esp32-bluetooth-audio-adafruit - An ESP32 bluetooth audio receiver using an adafruit breakout
esp-rfid - ESP8266 RFID (RC522, PN532, Wiegand, RDM6300) Access Control system featuring WebSocket, JSON, NTP Client, Javascript, SPIFFS
AutoConnect - An Arduino library for ESP8266/ESP32 WLAN configuration at runtime with the Web interface
ESPHome-Arduino-Port-Expander - An Arduino Port Expander for ESPHome with added Arduino Mega 2560 support
arduinoFFT - Fast Fourier Transform for Arduino
GRBL-Pendant-with-LCD - Arduino UNO or MEGA Pendant with LCD for GRBL 1.1f (Jog X Y Z and send any Command while connected to PC simultaneously)
ESP_Python_Serial - A tutorial on how to make an ESP and a Python script (running on PC or a RPi) communicate via Serial and do useful stuff while communicating
Arduino-HomeKit-ESP8266 - Native Apple HomeKit accessory implementation for the ESP8266 Arduino core.
esp-idf - Espressif IoT Development Framework. Official development framework for Espressif SoCs.
Esp8266-debugger - Electron app that help you develop code for esp8266
dscKeybusInterface - An Arduino/esp8266/esp32 library to directly interface with DSC security systems.