private void btnRangefinder_Click(object sender, EventArgs e)
{
openPort();
byte[] w = { HCSR04_I2C_REGISTRY_STATUS };
byte[] r = new byte[3];
i2c.write(w);
Thread.Sleep(10);
i2c.read(r);
txtRangerfinderRegs.Text = DeviceI2C.ByteArrayToString(r);
int range = (((int)r[1]) << 8) + (int)r[2];
txtRangefinderDistance.Text = range.ToString();
}
private void btnRead_Click(object sender, EventArgs e)
{
string txt = "";
byte[] w = { 0xf3 };
byte[] r = new byte[3];
if (i2c.write(w))
{
Thread.Sleep(500);
if (i2c.read(r))
{
int rawValue = (((int)r[0] << 8) | (int)r[1]) & 0xFFFC;
double temp = (rawValue * 175.72 / 65536 - 46.85);
txt = temp.ToString();
}
else
{
txt = "read timeout";
}
}
else
{
txt = "write failed";
}
labelTemp.Text = txt;
}
private void btnRead_Click(object sender, EventArgs e)
{
byte[] r = new byte[int.Parse(txtReadCount.Text)];
i2c.SlaveAddress = getAddr();
i2c.read(r);
txtRead.Text = DeviceI2C.ByteArrayToString(r);
}