hardware

README.md

@@ -3,6 +3,47 @@
 
 #### Web-radio based on [ESP32-audioI2S](https://github.com/schreibfaul1/ESP32-audioI2S) library
 #### More images in [Images.md](Images.md)
+### Hardware
+#### Required:
+**ESP32 board**: https://aliexpress.ru/item/32847027609.html\
+**I2S DAC**, roughly like this one: https://aliexpress.ru/item/1005001993192815.html
+#### Optional:
+##### Displays
+- **ST7735** 1.8' or 1.44' https://aliexpress.ru/item/1005002822797745.html
+- or **SSD1306** 0.96' I2C https://aliexpress.ru/item/1005001621806398.html
+##### Controls
+Three tact buttons or Encoder or all together
+### Connection table
+| SPI Display | ESP-32 |
+| ------ | ------ |
+| GND | GND |
+| VCC | +5v |
+| SCL | 18 |
+| SDA | 23 |
+| CSL | 5* |
+| RSTL | 15* |
+| DCL | 4* |
+
+| I2C Display | ESP-32 |
+| ------ | ------ |
+| GND | GND |
+| VCC | +5v |
+| SDA | 13* |
+| SCL | 14* |
+
+| I2S DAC | ESP-32 |
+| ------ | ------ |
+| GND       | GND |
+| VIN       | +5v |
+| DOUT(DIN) | 27* |
+| BCLK      | 26* |
+| LRC(WSEL) | 25* |
+
+| Buttons, Encoder | ESP-32 |
+| ------ | ------ |
+| GND       | GND |
+| PIN       | * |
+\* Any free pin, configured in options.h
 ## Version history
 ### v0.4.180
 - Vol steps 0..256 (in ESP32-audioI2S)