The target of this project is to build a WiFi speaker, which is directly fed via UDP stream. Application are
- reducing long analog wires
- multiroom speakers for home automation
- using multiply devices with one speaker e.g. two PC's and RaspberryPI media center
- ESP8266 core for Arduino
- VBAN protocol open-source implementation with release v2.1.0
- ESP8266 WiFi Connection manager with web captive portal
| ESP8266 / nodemcu | to | I2S DAC PCM5102 |
|---|---|---|
| GPIO2 / D4 | -> | LCK |
| GPIO15 / D8 | -> | BCK |
| GPIO2 / RX | -> | DIN |
| GND / G | -> | GND |
| 3V3 / 3V | -> | VIN |
| SCK -> GND |
- CPU Frequency: 80MHz
- Flash Size: 4M (3MSPIFFS)
- lwIP Variant: v2 Higher Bandwidth
Use VB-AUDIO Software to generate a VBAN Stream. I recommend the Banana Software. Setup the VBAN Stream:
- Source: e.g. BUS A1
- Stream Name: Stream1 "Stream1 is hard programmed in software"
- IP Address To: IP of your ESP device
- Port: 6980
- Sample Rate: 11024Hz to 64000Hz works (22050Hz to 48000Hz is recommended)
- CH: 1 or 2 is supported
- Format: PCM 16 bits
- Net Quality: Optimal to Very Solw works on my side