SPI library for mruby-esp32.
You need esp-idf v5.0 to use this mrbgems.
Add the line below to your build_config.rb:
conf.gem :github => 'mruby-esp32/mruby-esp32-spi'spi = SPI.new
s = spi.transfer([0x30, 0x20], 1)
spi = SPI.new(unit: 1, mode: 0, frequency:10_000_000, first_bit: SPI::MSB_FIRST)
spi.setmode(unit: 1, mode: 0, frequency:10_000_000, first_bit: SPI::MSB_FIRST)
# NOT IMPLEMENTED
spi.write(0x30, 0x20, 0x00)
spi.write("\x30\xa2")
spi.write(0x30)
# NOT IMPLEMENTED
data = spi.read( 32 )MIT License.