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@@ -48,9 +48,9 @@ Works with [ESP32-A1S](https://docs.ai-thinker.com/esp32-a1s) module that includ
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The board showed above has the following IO set
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- amplifier: GPIO21
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- key2: GPIO13, key3: GPIO19, key4: GPIO23, key5: GPIO18, key6: GPIO5 (to be confirmed with dip switches)
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-- key1: not sure, something with GPIO36
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+- key1: not sure, using GPIO36 in a matrix
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- jack insertion: GPIO39 (inserted low)
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-- D4 -> LED: GPIO22 (active low)
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+- D4 -> GPIO22 used for green LED (active low)
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- D5 -> GPIO19 as well
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(note that GPIOs need pullups)
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philippe44