CptLemming / teensy-aes67

AES67 compatible device using the Teensy 4.1 microcontroller

Teensy AES67

Features:

• Send & receive of audio over network via AES67 compatible UDP streams
• Receive audio via USB input
• Receive bluetooth audio via ESP32 A2DP sink via I2S2 connection
• Play audio locally with Teensy audio board
• GPIO network devices, controlled & displayed with Adafruit Neotrellis
• Calrec (CCP) control of device over the network

Todo:

• Audio streams are hard coded, should be dynamic
• Send Bluetooth AVRC data to Teensy to use in labels
• Send device name from Teensy to ESP32 to customise broadcast name
• Working PTPv2
• NMOS control

Bill of materials:

• Teensy 4.1
• Teensy audio shield
• Teensy ethernet kit
• Adafruit Neotrellis
• ESP32 Pico D4
• POE splitter

Resources and projects used to get the project this far:

• https://github.com/JayShoe/esp32_T4_bt_music_receiver
• https://github.com/philhartung/aes67-sender
• https://github.com/bondagit/aes67-linux-daemon
• https://hartung.io/
• https://www.researchgate.net/figure/Header-fields-for-RTP-UDP-IP-packets-Version-4-with-the-appropriate-dynamics_fig2_226190399
• https://github.com/ssilverman/QNEthernet