The current ADC settings set the reference to the internal 1V
reference with a x1 gain. This means that the maximum voltage
that can be measured with any analog input is 1V, which is
usually not sufficient for most applications.
Therefore the default value is changed to use the external VDDA
input, which is 3.3V (internally divided by 2) and the gain to
x1/2. This allows to measure voltages up to VDDA on any analog
input.
`arduino_pinmap` and `arduino__analog_map` are not defined any longer by the board but as a common approach in `sys/arduino/include/arduino_board*.h`. Their definition in `boards/common/esp32x` were just a leftover and forgotten in PR #19759.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
To handle different revisions of the board with same configuration, one ADC channel was added to the configuration and the last two ADC lines were reordered. It shouldn't affect existing applications.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
- GPIO2 (LED1_PIN) is used as SPI signal, not only if `sdcard_spi` is enabled. herefore, it must not be defined as LED pin if `periph_spi` is used.
- GIO4 (LED2_PIN) is used by the SDMMC Host Controller as SD Card DAT1 signal and must not be defined as LED pin in that case.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
Migration to the new Arduino I/O mapping, which was not fully covered in PR #19759 when the new Arduino I/O mapping was introduced and the feature handling was changed.
