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Correct ADS1115 handling of multiple sensors in continuous mode (#2016)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
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Sean Vig 2021-07-20 01:05:25 -04:00 committed by Jesse Hills
parent 5c57b51378
commit 73ead5f328
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1 changed files with 13 additions and 8 deletions
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21
esphome/components/ads1115/ads1115.cpp
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@ -107,17 +107,22 @@ float ADS1115Component::request_measurement(ADS1115Sensor *sensor) {
}
this->prev_config_ = config;
// about 1.6 ms with 860 samples per second
// about 1.2 ms with 860 samples per second
delay(2);
uint32_t start = millis();
while (this->read_byte_16(ADS1115_REGISTER_CONFIG, &config) && (config >> 15) == 0) {
if (millis() - start > 100) {
ESP_LOGW(TAG, "Reading ADS1115 timed out");
this->status_set_warning();
return NAN;
// in continuous mode, conversion will always be running, rely on the delay
// to ensure conversion is taking place with the correct settings
// can we use the rdy pin to trigger when a conversion is done?
if (!this->continuous_mode_) {
uint32_t start = millis();
while (this->read_byte_16(ADS1115_REGISTER_CONFIG, &config) && (config >> 15) == 0) {
if (millis() - start > 100) {
ESP_LOGW(TAG, "Reading ADS1115 timed out");
this->status_set_warning();
return NAN;
}
yield();
}
yield();
}
}