ESP Audio Development Kits

Open Source Hardware Open Source Software

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ESP Audio Development Kits is a set of development boards designed to make audio development for ESP platform easy and feature-rich.

Key properties of this kit

  • It uses ESP chips as a MCU core, which has huge community support and adaptation
  • It delivers 2 channel amplified high quality audio ready to be connected to speakers of choice - no need to have external amplifier. Therefore it is all you need to complete your audio projecs
  • It has low power consumption and built-in Li-Ion battery management - therefore it is a good choice for any sort of a portable and wearable audio projects.
  • It has a rich UX peripheral, most obviously FTF screen with touch, but also IR receiver, and header for physical controls, like rotary encoder or joystick. Therefore it is a good choice for standalone user-facing audio projects.

ESP Audio Development Features

MCU Core

  • ESP32 Dual Core 32-bit LX6 microprocessor running at 240 MHz
  • 16MB of flash storage
  • 8MB of PSRAM
  • CP2102 Serial communication/ Flashing chip

Battery management

  • Li-Ion battery charging with charge status indication
  • Battery overcharge and overdischarge protection
  • Battery overcurrent protection
  • Onboard 14500 battery holder or 2-pin connector for external battery (except Mini version)
  • Battery voltage reading using built-in DAC
  • Onboard power switch

Audio capabilities

  • Dual I2S stereo DAC (MAX98537) with built in D-Class amp
  • 3W per channel on 4 Ohm load
  • Up to 92% efficiency
  • Onboard 5,5V boost converter

Peripheral

  • 2.8'' 320x240 TFT Screen with Touch sensor (except Mini version)
  • Wifi and BT
  • IR reader (except Mini version)
  • RGB led, RGB LED strip header
  • SDCard socket (except Mini version)
  • JTAG header (except Mini version)
  • Rotary encoder/Joystick header (except Mini version)

Other

  • RESET and GPIO0 (FLASH) buttons
  • Raspberry Pi 4 case mechanical compatibility
  • Software samples for every piece of onboard peripheral

Hardware

Please find more information in the hardware section

Firmware

Please find more information in the firmware section

Where to buy

Crowd-supply campaign is being prepared at the moment