I2Cサンプル

温湿度センサ(MCP9808)

while true
	I2C.write(0x18, 0x08, 0x03)
	ans = I2C.read(0x18,0x05,2)
	a = ans[1] | ((ans[0] & 0x1f)<<8)
	a = (a.to_f)* 0.0625
	puts("ans:"+a.to_s+"\r\n")
	sleep(5)
end
			

温度気圧センサ(BME280, BMP280)

ADRS_BME280 = 0x77
$i2c = I2C.new()
##
# 気圧計クラス(BME280, BMP280)
#
class Barometer
	attr_reader :atm
	attr_reader :temperature
	attr_reader :dig_T1
	attr_reader :dig_T2
	attr_reader :dig_T3
	attr_reader :dig_P1
	attr_reader :dig_P2
	attr_reader :dig_P3
	attr_reader :dig_P4
	attr_reader :dig_P5
	attr_reader :dig_P6
	attr_reader :dig_P7
	attr_reader :dig_P8
	attr_reader :dig_P9

	##
	# 初期化
	#
	def init()
		$i2c.write( ADRS_BME280, 0xf5, 0xA0 )
		$i2c.write( ADRS_BME280, 0xf2, 0x00 )
		$i2c.write( ADRS_BME280, 0xf4, 0x25 )
		datas = $i2c.read( ADRS_BME280, 0x88, 24)
		if datas
			@dig_T1 = (datas[1] << 8) | datas[0]
			@dig_T2 = (datas[3] << 8) | datas[2]
			@dig_T3 = (datas[5] << 8) | datas[4]
			@dig_P1 = (datas[7] << 8) | datas[6]
			@dig_P2 = (datas[9] << 8) | datas[8]
			@dig_P2 = self.negative_num(@dig_P2)
			@dig_P3 = (datas[11] << 8) | datas[10]
			@dig_P4 = (datas[13] << 8) | datas[12]
			@dig_P5 = (datas[15] << 8) | datas[14]
			@dig_P5 = self.negative_num(@dig_P5)
			@dig_P6 = (datas[17] << 8) | datas[16]
			@dig_P6 = self.negative_num(@dig_P6)
			@dig_P7 = (datas[19] << 8) | datas[18]
			@dig_P8 = (datas[21] << 8) | datas[20]
			@dig_P8 = self.negative_num(@dig_P8)
			@dig_P9 = (datas[23] << 8) | datas[22]
		end
	end

	def negative_num(param)
		if(param >= 0x8000)
			param = ((-param ^ 0xFFFF) + 1)
		end
		return param
	end


	##
	# 測定開始トリガー
	#
	def trigger()
		$i2c.write( ADRS_BME280, 0xf4, 0x25 )
	end


	##
	# データ読み込み
	#
	def read()
		# read pressure and temperature.
		datas = $i2c.read( ADRS_BME280, 0xF7, 8 )
		$i2c.write( ADRS_BME280, 0xf4, 0x27 )

		a_para = ((datas[0] << 12) | (datas[1] << 4) | (datas[2] >> 4))
		t_para = ((datas[3] << 12) | (datas[4] << 4) | (datas[5] >> 4))
		p1 = (a_para / 16384.0 - @dig_T1 / 1024.0) * @dig_T2
		p2 = (a_para / 131072.0 - @dig_T1 / 8192.0)
		p2 = p2 * (a_para / 131072.0 - @dig_T1 / 8192.0) * @dig_T3
		t_fine = p1 + p2
		@temperature = t_fine / 5120.0
		pressure = 0.0
		p1 = (t_fine / 2.0) - 64000.0
		p2 = (((p1 / 4.0) * (p1 / 4.0)) / 2048) * @dig_P6
		p2 = p2 + ((p1 * @dig_P5) * 2.0)
		p2 = (p2 / 4.0) + (@dig_P4 * 65536.0)
		p1 = (((@dig_P3 * (((p1 / 4.0) * (p1 / 4.0)) / 8192)) / 8)
		p1 = p1 + ((@dig_P2 * p1) / 2.0)) / 262144
		p1 = ((32768 + p1) * @dig_P1) / 32768
		pressure = ((1048576 - a_para) - (p2 / 4096)) * 3125
		if pressure < 0x80000000
			pressure = (pressure * 2.0) / p1
		else
			pressure = (pressure / p1) * 2
		end
		p1 = (@dig_P9 * (((pressure / 8.0) * (pressure / 8.0)) / 8192.0)) / 4096
		p2 = ((pressure / 4.0) * @dig_P8) / 8192.0
		@atm = (pressure + ((p1 + p2 + @dig_P7) / 16.0))/100
		return @atm
	end
end

$barometer = Barometer.new
$barometer.init()
while true
	$barometer.trigger()
	$barometer.read()
	puts "ATM: #{$barometer.atm} hPa  TEMP: #{$barometer.temperature} deg"
	sleep(1)
end
			

モータードライバ(DRV8830)

class Moter
  def init()
    I2C.write(0x62,0x01,0x80)
    I2C.write(0x60,0x01,0x80)
  end
  
  def r(speed,r)
    I2C.write(0x62,0x00,speed+r)
  end
  
  def l(speed,l)
    I2C.write(0x60,0x00,speed+l)
  end

  def control(speed,r,l)
    I2C.write(0x62,0x00,speed+r)
    I2C.write(0x60,0x00,speed+l)
  end
end
			

インスタンスがどうこう

class Moter
def initialize(n)
	@num = n
	I2C.write(0x60+@num,0x01,0x80)
end

def control(speed,status)
	I2C.write(0x60+@num,0x00,speed+status)
end
end
			

サーボモータードライバ(PCA9685)

$moters = I2C.new()
def module_init()
	$moters.write(0x40, 0xFA, 0x00)
	$moters.write(0x40, 0xFB, 0x00)
	$moters.write(0x40, 0xFC, 0x00)
	$moters.write(0x40, 0xFD, 0x00)
	$moters.write(0x40, 0x01, 0x04)
	$moters.write(0x40, 0x00, 0x01)
	sleep_ms(50)
end

def freq_set()
	$moters.write(0x40, 0x00, 0x11)
	$moters.write(0x40, 0xFE, 0x65)
	$moters.write(0x40, 0x00, 0x01)
	sleep_ms(50)
	$moters.write(0x40, 0x00, 0x81)
end

def m_all_move(angle)
	angle = (angle/180.0*500 + 150).to_i
	$moters.write(0x40, 0xFA, 0x00)
	$moters.write(0x40, 0xFB, 0x00)
	$moters.write(0x40, 0xFC, angle & 0xff)
	$moters.write(0x40, 0xFD, angle >>8)
end

def m_move(ch,angle)
	angle = (angle/180.0*500 + 150).to_i
	$moters.write(0x40, ch*4+6, 0x00)
	$moters.write(0x40, ch*4+7, 0x00)
	$moters.write(0x40, ch*4+8, angle & 0xff)
	$moters.write(0x40, ch*4+9, angle >>8)
end

module_init()
freq_set()
m_all_move(90)
while true
	m_move(6,45)
	m_move(8,135)
	m_move(10,90)
	m_move(11,90)
	sleep(2)
	m_move(6,135)
	m_move(8,45)
	m_move(10,135)
	m_move(11,45)
	sleep(2)
end
			

OLED

class OLED
$oled = 0
def init()
	$oled = I2C.new
	$oled.write(0x3c,0x00,0xAE,0xA8,0x3F)
	$oled.write(0x3c,0x00,0xD3,0x00)
	$oled.write(0x3c,0x00,0x40,0xA0,0xC0,0xDA,0x12)
	$oled.write(0x3c,0x00,0x81,0xFF)
	$oled.write(0x3c,0x00,0xA4,0xA6,0xD5,0x80)
	$oled.write(0x3c,0x00,0x2E,0x20,0x10)
	$oled.write(0x3c,0x00,0x21,0,127)
	$oled.write(0x3c,0x00,0x22,0,7)
	$oled.write(0x3c,0x00,0x8D,0x14,0xAF)
	i = 0
	while i<8
		$oled.write(0x3C,0x80,0xB0 + i)
		j = 0
		while j<16
			$oled.write(0x3C,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00)
			j = j+1
		end
		i = i+1
	end
end
def send(i,name)
	a=[
	[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x00, 0x5F, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x00, 0x07, 0x00, 0x07, 0x00, 0x00, 0x00],
	[0x00, 0x14, 0x7F, 0x14, 0x7F, 0x14, 0x00, 0x00],
	[0x00, 0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x00, 0x00],
	[0x00, 0x23, 0x13, 0x08, 0x64, 0x62, 0x00, 0x00],
	[0x00, 0x36, 0x49, 0x55, 0x22, 0x50, 0x00, 0x00],
	[0x00, 0x00, 0x05, 0x03, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x1C, 0x22, 0x41, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x41, 0x22, 0x1C, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x08, 0x2A, 0x1C, 0x2A, 0x08, 0x00, 0x00],
	[0x00, 0x08, 0x08, 0x3E, 0x08, 0x08, 0x00, 0x00],
	[0x00, 0xA0, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x08, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00],
	[0x00, 0x60, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x20, 0x10, 0x08, 0x04, 0x02, 0x00, 0x00],
	[0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E, 0x00, 0x00],
	[0x00, 0x00, 0x42, 0x7F, 0x40, 0x00, 0x00, 0x00],
	[0x00, 0x62, 0x51, 0x49, 0x49, 0x46, 0x00, 0x00],
	[0x00, 0x22, 0x41, 0x49, 0x49, 0x36, 0x00, 0x00],
	[0x00, 0x18, 0x14, 0x12, 0x7F, 0x10, 0x00, 0x00],
	[0x00, 0x27, 0x45, 0x45, 0x45, 0x39, 0x00, 0x00],
	[0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30, 0x00, 0x00],
	[0x00, 0x01, 0x71, 0x09, 0x05, 0x03, 0x00, 0x00],
	[0x00, 0x36, 0x49, 0x49, 0x49, 0x36, 0x00, 0x00],
	[0x00, 0x06, 0x49, 0x49, 0x29, 0x1E, 0x00, 0x00],
	[0x00, 0x00, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x00, 0xAC, 0x6C, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00, 0x00],
	[0x00, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00, 0x00],
	[0x00, 0x41, 0x22, 0x14, 0x08, 0x00, 0x00, 0x00],
	[0x00, 0x02, 0x01, 0x51, 0x09, 0x06, 0x00, 0x00],
	[0x00, 0x32, 0x49, 0x79, 0x41, 0x3E, 0x00, 0x00],
	[0x00, 0x7E, 0x09, 0x09, 0x09, 0x7E, 0x00, 0x00],
	[0x00, 0x7F, 0x49, 0x49, 0x49, 0x36, 0x00, 0x00],
	[0x00, 0x3E, 0x41, 0x41, 0x41, 0x22, 0x00, 0x00],
	[0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C, 0x00, 0x00],
	[0x00, 0x7F, 0x49, 0x49, 0x49, 0x41, 0x00, 0x00],
	[0x00, 0x7F, 0x09, 0x09, 0x09, 0x01, 0x00, 0x00],
	[0x00, 0x3E, 0x41, 0x41, 0x51, 0x72, 0x00, 0x00],
	[0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00, 0x00],
	[0x00, 0x41, 0x7F, 0x41, 0x00, 0x00, 0x00, 0x00],
	[0x00, 0x20, 0x40, 0x41, 0x3F, 0x01, 0x00, 0x00],
	[0x00, 0x7F, 0x08, 0x14, 0x22, 0x41, 0x00, 0x00],
	[0x00, 0x7F, 0x40, 0x40, 0x40, 0x40, 0x00, 0x00],
	[0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F, 0x00, 0x00],
	[0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F, 0x00, 0x00],
	[0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E, 0x00, 0x00],
	[0x00, 0x7F, 0x09, 0x09, 0x09, 0x06, 0x00, 0x00],
	[0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00, 0x00],
	[0x00, 0x7F, 0x09, 0x19, 0x29, 0x46, 0x00, 0x00],
	[0x00, 0x26, 0x49, 0x49, 0x49, 0x32, 0x00, 0x00],
	[0x00, 0x01, 0x01, 0x7F, 0x01, 0x01, 0x00, 0x00],
	[0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00, 0x00],
	[0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00, 0x00],
	[0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F, 0x00, 0x00],
	[0x00, 0x63, 0x14, 0x08, 0x14, 0x63, 0x00, 0x00],
	[0x00, 0x03, 0x04, 0x78, 0x04, 0x03, 0x00, 0x00],
	[0x00, 0x61, 0x51, 0x49, 0x45, 0x43, 0x00, 0x00],
]

	$oled.write(0x3C,0x00,0xB0+i,0x21,0x00,0x7F)
	j = 0
	while(j<16)
		b = (name[j].ord) - 32
		$oled.write(0x3C,0x40,a[b][0],a[b][1],a[b][2],a[b][3],a[b][4],a[b][5],a[b][6],a[b][7])
		j = j+1
	end
end
end
oled = OLED.new
# 初期化
oled.init()
# oled.send(行,表示文字列16文字)
oled.send(0,"LETS!GO!MRUBY/C!")
oled.send(1,"================")
oled.send(2,"ALL HAPPY       ")
			

2値画像表示

class OLED
	$oled = 0
	def init()
		$oled = I2C.new
		$oled.write(0x3c,0x00,0xAE,0xA8,0x3F)
		$oled.write(0x3c,0x00,0xD3,0x00)
		$oled.write(0x3c,0x00,0x40,0xA0,0xC0,0xDA,0x12)
		$oled.write(0x3c,0x00,0x81,0xFF)
		$oled.write(0x3c,0x00,0xA4,0xA6,0xD5,0x80)
		$oled.write(0x3c,0x00,0x2E,0x20,0x10)
		$oled.write(0x3c,0x00,0x21,0,127)
		$oled.write(0x3c,0x00,0x22,0,7)
		$oled.write(0x3c,0x00,0x8D,0x14,0xAF)
		i = 0
		while i<9
			$oled.write(0x3C,0x80,0xB0 + i)
			j = 0
			while j<16
				$oled.write(0x3C,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00)
				j = j+1
			end
			i = i+1
		end
	end
	def send(a)
		$oled.write(0x3C,0x00,0xB0+i,0x21,0x00,0x7F)
		c = 0
		while(c<7)
			j = 0
			while(j<16)
				b = j
				$oled.write(0x3C,0x40,a[c][b][0],a[c][b][1],a[c][b][2],a[c][b][3],a[c][b][4],a[c][b][5],a[c][b][6],a[c][b][7])
				j = j+1
			end
			c = c+1
		end
	end
end
picture=[
[[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],[0x00,0x80,0xE0,0xF0,0xFC,0x00,0x00,0xFC],[0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC],[0xFC,0x7C,0x3C,0x1C,0x9C,0xCC,0xE4,0xF0],[0xF8,0xFC,0xF8,0xF0,0xE4,0xCC,0x9C,0x3C],[0x7C,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC,0xFC],[0xFC,0xFC,0xFC,0xFC,0x00,0x00,0xF8,0xE0],[0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00]],
[[0x00,0x00,0x00,0x80,0xC0,0xE0,0xF8,0xFC],[0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFF],[0xFF,0x7F,0x3F,0x1F,0x8F,0xC7,0xE3,0xF1],[0xF8,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF],[0xFE,0xFC,0xF9,0xF3,0xE7,0xCF,0x9F,0x3F],[0x7F,0xFF,0xFF,0xFF,0x00,0x00,0xFF,0xFF],[0xFF,0xFF,0xFE,0xF8,0xF0,0xC0,0x80,0x00]],
[[0x00,0x00,0x02,0x23,0xE3,0xE3,0xE3,0xE3],[0xE3,0xE3,0xE3,0xE3,0xE3,0x80,0x00,0x21],[0xE0,0xE0,0xE2,0xE3,0xE3,0xE3,0xE3,0xE3],[0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3],[0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3],[0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0xE3],[0xE2,0xE0,0x61,0x01,0x80,0xE0,0xE3,0xE3],[0xE3,0xE3,0xE3,0xE3,0xE3,0xE3,0x63,0x23]],
[[0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x07],[0x0F,0x3F,0x7F,0xFF,0xFF,0xFF,0xFE,0xF8],[0xE0,0x83,0x0F,0x3F,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0x1F],[0x87,0xE1,0xF8,0xFE,0xFF,0xFF,0xFF,0x7F],[0x3F,0x1F,0x0F,0x07,0x03,0x00,0x00,0x00],[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],[0x00, 0x7C, 0x04, 0x18, 0x04, 0x78, 0x00, 0x00],[0x00, 0x00, 0x7C, 0x08, 0x04, 0x00, 0x00, 0x00],[0x00, 0x3C, 0x40, 0x40, 0x7C, 0x00, 0x00, 0x00],[0x00, 0x7F, 0x48, 0x44, 0x44, 0x38, 0x00, 0x00],[0x00, 0x1C, 0xA0, 0xA0, 0x7C, 0x00, 0x00, 0x00],[0x00, 0x20, 0x10, 0x08, 0x04, 0x02, 0x00, 0x00],[0x00, 0x38, 0x44, 0x44, 0x28, 0x00, 0x00, 0x00],],
[[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],[0x00,0x00,0x00,0x00,0x01,0x03,0x0F,0x1F],[0x3F,0x7F,0xFE,0xF8,0xE0,0x83,0x0F,0x3F],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0x7F,0x1F,0x07,0xC1,0xF0,0xFE],[0xFF,0x7F,0x1F,0x0F,0x07,0x03,0x01,0x00],[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]],
[[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],[0x00,0x00,0x00,0x03,0x07,0x0F,0x1E,0x38],[0x60,0x83,0x0F,0x3F,0xFF,0xFF,0xFF,0xFF],[0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0x1F],[0x07,0xC1,0x70,0x3C,0x1F,0x07,0x03,0x01],[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]],
[[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],
[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],
[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],
[0x00,0x01,0x02,0x00,0x00,0x07,0x1F,0xFF],
[0xFF,0xFF,0xFF,0x1F,0x07,0x01,0x00,0x00],
[0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00],
[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00],
[0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]]
]
oled = OLED.new
# 初期化
oled.init()
# oled.send(画像配列8×16×8)
oled.send(picture)
			

LCD

$lcd = I2C.new
sleep(1)
def rgb(r,g,b)
	$lcd.write(0x62,0x00,0x00)
	$lcd.write(0x62,0x08,0xFF)
	$lcd.write(0x62,0x01,0x20)
	$lcd.write(0x62,0x04,r)
	$lcd.write(0x62,0x03,g)
	$lcd.write(0x62,0x02,b)
end
def send_txt(txt)
	$lcd.write(0x3E,0x80,0x02)
	sleep_ms(5)
	$lcd.write(0x3E,0x80,0x0C)
	sleep_ms(5)
	cnt = txt.size
	i = 0
	while(i < cnt)
	if(i == 15)
		$lcd.write(0x3E,0x80,0xC0)
	end
	$lcd.write(0x3E,0x40,(txt[i]).ord)
	i = i+1
	end
end
rgb(255,255,255)
send_txt("YoshihiroOgura")
			

3軸加速度センサ

$i2c = I2C.new()

# ====================================================
# @brief  符号付2バイトの数値の絶対値を出力
#
# @param param 数値(2バイト)
#
# @return  絶対値（整数値）
# ====================================================
def absolute(param)
	if(param >= 0x8000)
		param = ((-param ^ 0xFFFF) + 1)
	end
	return param
end

class Lis3dhtr

	attr_reader :addr

	# ====================================================
	# @brief  LIS3DHTRの初期設定
	#
	# @param slave_addr 使用しているLIS3DHTRのアドレス
	# ====================================================
	def init(slave_addr)
		@addr = slave_addr
		# データレート:400Hz(0xF0-0x00)
		# x,y,zのデータを取得(0x07-0x00)
		$i2c.write(@addr,0x20,0x77)

		# 継続的に値を更新(0x80-0x00)
		# フルスケール±2g(0x06-0x00)
		$i2c.write(@addr,0x23,0x00)
	end

	# ====================================================
	# @brief  LIS3DHTRからX,Y,Zの加速度データを取得
	#
	# @return  x,y,zの加速度データ(配列[x,y,z])
	# ====================================================
	def read_data()
		# output status
		# data = $i2c.read(ADDR, 0x27, 1)
		# x = data[0]
		# puts("status:"+x.to_s)
	
		# x data read
		data = $i2c.read(@addr, 0x28, 1)
		x = data[0]
		data = $i2c.read(@addr, 0x29, 1)
		x += data[0] * 256
		x = (absolute(x)).to_f
		x /= 16000
		x = (x*100).to_i
		
		# y data read
		data = $i2c.read(@addr, 0x2A, 1)
		y = data[0]
		data = $i2c.read(@addr, 0x2B, 1)
		y += data[0] * 256
		y = (absolute(y)).to_f
		y /= 16000
		y = (y*100).to_i
		
		# z data read
		data = $i2c.read(@addr, 0x2C, 1)
		z = data[0]
		data = $i2c.read(@addr, 0x2D, 1)
		z += data[0] * 256
		z = (absolute(z)).to_f
		z /= 16000
		z = (z*100).to_i
		return [x,y,z]
	end
end


# メインプログラム

sensor = Lis3dhtr.new
sensor.init(0x19)
sleep(2)


while true
	data_raw = sensor.read_data()
	puts("x:#{data_raw[0]},y:#{data_raw[1]}z:#{data_raw[2]}")
	sleep_ms(50)
end
			

Qwiic

赤色LEDボタン

led = I2C.new
while true
	l = led.read(0x6F,0x03,1)
	s = (l[0]&0x04)>>2
	led.write(0x6F,0x19,s * 0xFF)
end
			

ToF測距センサ

while true
  status = 0
  I2C.write(0x29,0x00,0x01)
  while((status & 0x01) == 1)
    data = I2C.read(0x29,0x14,1)
    status = data[0]
  end
  data = I2C.read(0x29,0x14,12)
  puts(data[11] + (data[10]<<8))
  sleep_ms(100)
end
			

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  1. mruby/cとは？
  2. LEDを制御する
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