47 lines
752 B
Markdown
47 lines
752 B
Markdown
# HannaBox
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## Microcontroller
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D1 Mini ESP32
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Due to mp3 playback it needs a multicore esp 32:
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This library only works on multi-core ESP32 chips like the ESP32-S3. It does not work on the ESP32-S2 or the ESP32-C3 warning
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## Pins
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### Amplifier
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```
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26 -> DIN
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27 -> BCLK
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25 -> LRC
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5V -> Vin
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GND -> GND
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```
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### SD Card
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```
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CS -> 22 (D1)
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MOSI -> 23 (D7)
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CLK -> 18 (D5)
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MISO -> 19 (D6)
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```
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## Buttons
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```
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Start / Stop -> 17 and GND
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```
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## TODOs
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* Card Reader with SPI. Configure hspi, second SPI channel? Or does SD Card + RFID run at the same channel?
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## Links
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https://github.com/earlephilhower/ESP8266Audio
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[Running two SPI devices at once](https://randomnerdtutorials.com/esp32-spi-communication-arduino/)
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