[Fw] Fixed ambient-light filter bugs.

This commit is contained in:
稚晖 2021-01-22 15:08:49 +08:00
parent 74dd376fdc
commit 7f2c54734f
2 changed files with 14 additions and 6 deletions

View File

@ -3,6 +3,7 @@
void Ambient::init(int mode)
{
mMode = mode;
switch (mode)
{
case ONE_TIME_H_RESOLUTION_MODE:
@ -17,17 +18,19 @@ void Ambient::init(int mode)
}
Wire.begin(AMB_I2C_SDA, AMB_I2C_SCL);
delay(50);
Wire.beginTransmission(ADDRESS_BH1750FVI); //"notify" the matching device
Wire.write(mMode); //set operation mode
Wire.endTransmission();
}
unsigned int Ambient::getLux()
{
Wire.beginTransmission(ADDRESS_BH1750FVI); //"notify" the matching device
Wire.write(ONE_TIME_L_RESOLUTION_MODE); //set operation mode
Wire.endTransmission();
if (millis() - last_time > sample_time)
{
last_time = millis();
Wire.requestFrom(ADDRESS_BH1750FVI, 2); //ask Arduino to read back 2 bytes from the sensor
highByte = Wire.read(); // get the high byte
lowByte = Wire.read(); // get the low byte
@ -37,9 +40,13 @@ unsigned int Ambient::getLux()
for (int i = 4; i > 0; i--) lux[i] = lux[i - 1];
lux[0] = illuminance;
Wire.beginTransmission(ADDRESS_BH1750FVI); //"notify" the matching device
Wire.write(mMode); //set operation mode
Wire.endTransmission();
}
unsigned int avg;
unsigned int avg = 0;
for (int i = 4; i >= 0; i--) avg += lux[i];
avg /= 5;

View File

@ -14,6 +14,7 @@
class Ambient
{
private:
int mMode;
unsigned char highByte = 0;
unsigned char lowByte = 0;
unsigned int sensorOut = 0;