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Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
ladyada 2025-08-17 14:27:35 -04:00
parent 77715e7a5d
commit 4fd054b01e
2 changed files with 225 additions and 79 deletions
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264
Adafruit_VEML6046.cpp
View file

@ -410,9 +410,9 @@ float Adafruit_VEML6046::calculateLux(uint16_t green_count) {
veml6046_integration_time_t it = getIntegrationTime();
veml6046_gain_t gain = getRGBGain();
bool half_pd = getPhotoDiodeHalfSize();
float resolution = 0.0;
// Resolution table from datasheet (lx/cnt)
// TABLE 13 - 2/2 PD USED, TABLE 14 - 1/2 PD USED
if (half_pd) {
@ -420,138 +420,266 @@ float Adafruit_VEML6046::calculateLux(uint16_t green_count) {
switch (it) {
case VEML6046_IT_400MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0105; break;
case VEML6046_GAIN_1X: resolution = 0.0210; break;
case VEML6046_GAIN_0_66X: resolution = 0.0318; break;
case VEML6046_GAIN_0_5X: resolution = 0.0420; break;
case VEML6046_GAIN_2X:
resolution = 0.0105;
break;
case VEML6046_GAIN_1X:
resolution = 0.0210;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.0318;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.0420;
break;
}
break;
case VEML6046_IT_200MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0210; break;
case VEML6046_GAIN_1X: resolution = 0.0420; break;
case VEML6046_GAIN_0_66X: resolution = 0.0636; break;
case VEML6046_GAIN_0_5X: resolution = 0.0840; break;
case VEML6046_GAIN_2X:
resolution = 0.0210;
break;
case VEML6046_GAIN_1X:
resolution = 0.0420;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.0636;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.0840;
break;
}
break;
case VEML6046_IT_100MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0420; break;
case VEML6046_GAIN_1X: resolution = 0.0840; break;
case VEML6046_GAIN_0_66X: resolution = 0.1273; break;
case VEML6046_GAIN_0_5X: resolution = 0.1680; break;
case VEML6046_GAIN_2X:
resolution = 0.0420;
break;
case VEML6046_GAIN_1X:
resolution = 0.0840;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.1273;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.1680;
break;
}
break;
case VEML6046_IT_50MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0840; break;
case VEML6046_GAIN_1X: resolution = 0.1680; break;
case VEML6046_GAIN_0_66X: resolution = 0.2545; break;
case VEML6046_GAIN_0_5X: resolution = 0.3360; break;
case VEML6046_GAIN_2X:
resolution = 0.0840;
break;
case VEML6046_GAIN_1X:
resolution = 0.1680;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.2545;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.3360;
break;
}
break;
case VEML6046_IT_25MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.1680; break;
case VEML6046_GAIN_1X: resolution = 0.3360; break;
case VEML6046_GAIN_0_66X: resolution = 0.5091; break;
case VEML6046_GAIN_0_5X: resolution = 0.6720; break;
case VEML6046_GAIN_2X:
resolution = 0.1680;
break;
case VEML6046_GAIN_1X:
resolution = 0.3360;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.5091;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.6720;
break;
}
break;
case VEML6046_IT_12_5MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.3360; break;
case VEML6046_GAIN_1X: resolution = 0.6720; break;
case VEML6046_GAIN_0_66X: resolution = 1.0182; break;
case VEML6046_GAIN_0_5X: resolution = 1.3440; break;
case VEML6046_GAIN_2X:
resolution = 0.3360;
break;
case VEML6046_GAIN_1X:
resolution = 0.6720;
break;
case VEML6046_GAIN_0_66X:
resolution = 1.0182;
break;
case VEML6046_GAIN_0_5X:
resolution = 1.3440;
break;
}
break;
case VEML6046_IT_6_25MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.6720; break;
case VEML6046_GAIN_1X: resolution = 1.3440; break;
case VEML6046_GAIN_0_66X: resolution = 2.0364; break;
case VEML6046_GAIN_0_5X: resolution = 2.6880; break;
case VEML6046_GAIN_2X:
resolution = 0.6720;
break;
case VEML6046_GAIN_1X:
resolution = 1.3440;
break;
case VEML6046_GAIN_0_66X:
resolution = 2.0364;
break;
case VEML6046_GAIN_0_5X:
resolution = 2.6880;
break;
}
break;
case VEML6046_IT_3_125MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 1.3440; break;
case VEML6046_GAIN_1X: resolution = 2.6880; break;
case VEML6046_GAIN_0_66X: resolution = 4.0727; break;
case VEML6046_GAIN_0_5X: resolution = 5.3760; break;
case VEML6046_GAIN_2X:
resolution = 1.3440;
break;
case VEML6046_GAIN_1X:
resolution = 2.6880;
break;
case VEML6046_GAIN_0_66X:
resolution = 4.0727;
break;
case VEML6046_GAIN_0_5X:
resolution = 5.3760;
break;
}
break;
}
} else {
// 2/2 PD used - TABLE 13
// 2/2 PD used - TABLE 13
switch (it) {
case VEML6046_IT_400MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0053; break;
case VEML6046_GAIN_1X: resolution = 0.0105; break;
case VEML6046_GAIN_0_66X: resolution = 0.0159; break;
case VEML6046_GAIN_0_5X: resolution = 0.0210; break;
case VEML6046_GAIN_2X:
resolution = 0.0053;
break;
case VEML6046_GAIN_1X:
resolution = 0.0105;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.0159;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.0210;
break;
}
break;
case VEML6046_IT_200MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0105; break;
case VEML6046_GAIN_1X: resolution = 0.0210; break;
case VEML6046_GAIN_0_66X: resolution = 0.0318; break;
case VEML6046_GAIN_0_5X: resolution = 0.0420; break;
case VEML6046_GAIN_2X:
resolution = 0.0105;
break;
case VEML6046_GAIN_1X:
resolution = 0.0210;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.0318;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.0420;
break;
}
break;
case VEML6046_IT_100MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0210; break;
case VEML6046_GAIN_1X: resolution = 0.0420; break;
case VEML6046_GAIN_0_66X: resolution = 0.0636; break;
case VEML6046_GAIN_0_5X: resolution = 0.0840; break;
case VEML6046_GAIN_2X:
resolution = 0.0210;
break;
case VEML6046_GAIN_1X:
resolution = 0.0420;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.0636;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.0840;
break;
}
break;
case VEML6046_IT_50MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0420; break;
case VEML6046_GAIN_1X: resolution = 0.0840; break;
case VEML6046_GAIN_0_66X: resolution = 0.1273; break;
case VEML6046_GAIN_0_5X: resolution = 0.1680; break;
case VEML6046_GAIN_2X:
resolution = 0.0420;
break;
case VEML6046_GAIN_1X:
resolution = 0.0840;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.1273;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.1680;
break;
}
break;
case VEML6046_IT_25MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.0840; break;
case VEML6046_GAIN_1X: resolution = 0.1680; break;
case VEML6046_GAIN_0_66X: resolution = 0.2545; break;
case VEML6046_GAIN_0_5X: resolution = 0.3360; break;
case VEML6046_GAIN_2X:
resolution = 0.0840;
break;
case VEML6046_GAIN_1X:
resolution = 0.1680;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.2545;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.3360;
break;
}
break;
case VEML6046_IT_12_5MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.1680; break;
case VEML6046_GAIN_1X: resolution = 0.3360; break;
case VEML6046_GAIN_0_66X: resolution = 0.5091; break;
case VEML6046_GAIN_0_5X: resolution = 0.6720; break;
case VEML6046_GAIN_2X:
resolution = 0.1680;
break;
case VEML6046_GAIN_1X:
resolution = 0.3360;
break;
case VEML6046_GAIN_0_66X:
resolution = 0.5091;
break;
case VEML6046_GAIN_0_5X:
resolution = 0.6720;
break;
}
break;
case VEML6046_IT_6_25MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.3360; break;
case VEML6046_GAIN_1X: resolution = 0.6720; break;
case VEML6046_GAIN_0_66X: resolution = 1.0182; break;
case VEML6046_GAIN_0_5X: resolution = 1.3440; break;
case VEML6046_GAIN_2X:
resolution = 0.3360;
break;
case VEML6046_GAIN_1X:
resolution = 0.6720;
break;
case VEML6046_GAIN_0_66X:
resolution = 1.0182;
break;
case VEML6046_GAIN_0_5X:
resolution = 1.3440;
break;
}
break;
case VEML6046_IT_3_125MS:
switch (gain) {
case VEML6046_GAIN_2X: resolution = 0.6720; break;
case VEML6046_GAIN_1X: resolution = 1.3440; break;
case VEML6046_GAIN_0_66X: resolution = 2.0364; break;
case VEML6046_GAIN_0_5X: resolution = 2.6880; break;
case VEML6046_GAIN_2X:
resolution = 0.6720;
break;
case VEML6046_GAIN_1X:
resolution = 1.3440;
break;
case VEML6046_GAIN_0_66X:
resolution = 2.0364;
break;
case VEML6046_GAIN_0_5X:
resolution = 2.6880;
break;
}
break;
}
}
return green_count * resolution;
}

40
examples/test_veml6046/test_veml6046.ino
View file

@ -178,7 +178,7 @@ void setup() {
} else {
Serial.println(F("Failed to set green low threshold"));
}
if (veml.setGreenThresholdHigh(10000)) {
Serial.println(F("Green high threshold set successfully"));
} else {
@ -192,20 +192,38 @@ void setup() {
Serial.print(low_thresh);
Serial.print(F(", High: "));
Serial.println(high_thresh);
// Calculate optimal delay based on current integration time + 5ms buffer
current_it = veml.getIntegrationTime();
sample_delay_ms = 5; // Base 5ms buffer
switch (current_it) {
case VEML6046_IT_3_125MS: sample_delay_ms += 4; break; // 3.125ms rounded up
case VEML6046_IT_6_25MS: sample_delay_ms += 7; break; // 6.25ms rounded up
case VEML6046_IT_12_5MS: sample_delay_ms += 13; break; // 12.5ms rounded up
case VEML6046_IT_25MS: sample_delay_ms += 25; break;
case VEML6046_IT_50MS: sample_delay_ms += 50; break;
case VEML6046_IT_100MS: sample_delay_ms += 100; break;
case VEML6046_IT_200MS: sample_delay_ms += 200; break;
case VEML6046_IT_400MS: sample_delay_ms += 400; break;
default: sample_delay_ms += 25; break; // Default fallback
case VEML6046_IT_3_125MS:
sample_delay_ms += 4;
break; // 3.125ms rounded up
case VEML6046_IT_6_25MS:
sample_delay_ms += 7;
break; // 6.25ms rounded up
case VEML6046_IT_12_5MS:
sample_delay_ms += 13;
break; // 12.5ms rounded up
case VEML6046_IT_25MS:
sample_delay_ms += 25;
break;
case VEML6046_IT_50MS:
sample_delay_ms += 50;
break;
case VEML6046_IT_100MS:
sample_delay_ms += 100;
break;
case VEML6046_IT_200MS:
sample_delay_ms += 200;
break;
case VEML6046_IT_400MS:
sample_delay_ms += 400;
break;
default:
sample_delay_ms += 25;
break; // Default fallback
}
Serial.print(F("Using sample delay: "));
Serial.print(sample_delay_ms);