mirror of
https://github.com/Threnklyn/esphome-dev.git
synced 2026-05-19 04:33:27 +02:00
Stephen Tierney
6a2f0f5143
Co-authored-by: Otto Winter <otto@otto-winter.com> Co-authored-by: steve <steve@Hackintosh.local> Co-authored-by: Otto winter <otto@otto-winter.com>
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
#include "pmsa003i.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace pmsa003i {
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static const char *const TAG = "pmsa003i";
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void PMSA003IComponent::setup() {
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ESP_LOGCONFIG(TAG, "Setting up pmsa003i...");
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PM25AQIData data;
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bool successful_read = this->read_data_(&data);
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if (!successful_read) {
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this->mark_failed();
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return;
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}
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}
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void PMSA003IComponent::dump_config() { LOG_I2C_DEVICE(this); }
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void PMSA003IComponent::update() {
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PM25AQIData data;
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bool successful_read = this->read_data_(&data);
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// Update sensors
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if (successful_read) {
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this->status_clear_warning();
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ESP_LOGV(TAG, "Read success. Updating sensors.");
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if (this->standard_units_) {
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if (this->pm_1_0_sensor_ != nullptr)
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this->pm_1_0_sensor_->publish_state(data.pm10_standard);
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if (this->pm_2_5_sensor_ != nullptr)
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this->pm_2_5_sensor_->publish_state(data.pm25_standard);
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if (this->pm_10_0_sensor_ != nullptr)
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this->pm_10_0_sensor_->publish_state(data.pm100_standard);
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} else {
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if (this->pm_1_0_sensor_ != nullptr)
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this->pm_1_0_sensor_->publish_state(data.pm10_env);
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if (this->pm_2_5_sensor_ != nullptr)
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this->pm_2_5_sensor_->publish_state(data.pm25_env);
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if (this->pm_10_0_sensor_ != nullptr)
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this->pm_10_0_sensor_->publish_state(data.pm100_env);
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}
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if (this->pmc_0_3_sensor_ != nullptr)
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this->pmc_0_3_sensor_->publish_state(data.particles_03um);
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if (this->pmc_0_5_sensor_ != nullptr)
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this->pmc_0_5_sensor_->publish_state(data.particles_05um);
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if (this->pmc_1_0_sensor_ != nullptr)
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this->pmc_1_0_sensor_->publish_state(data.particles_10um);
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if (this->pmc_2_5_sensor_ != nullptr)
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this->pmc_2_5_sensor_->publish_state(data.particles_25um);
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if (this->pmc_5_0_sensor_ != nullptr)
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this->pmc_5_0_sensor_->publish_state(data.particles_50um);
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if (this->pmc_10_0_sensor_ != nullptr)
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this->pmc_10_0_sensor_->publish_state(data.particles_100um);
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} else {
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this->status_set_warning();
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ESP_LOGV(TAG, "Read failure. Skipping update.");
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}
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}
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bool PMSA003IComponent::read_data_(PM25AQIData *data) {
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const uint8_t num_bytes = 32;
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uint8_t buffer[num_bytes];
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this->read_bytes_raw(buffer, num_bytes);
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// https://github.com/adafruit/Adafruit_PM25AQI
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// Check that start byte is correct!
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if (buffer[0] != 0x42) {
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return false;
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}
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// get checksum ready
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int16_t sum = 0;
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for (uint8_t i = 0; i < 30; i++) {
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sum += buffer[i];
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}
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// The data comes in endian'd, this solves it so it works on all platforms
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uint16_t buffer_u16[15];
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for (uint8_t i = 0; i < 15; i++) {
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buffer_u16[i] = buffer[2 + i * 2 + 1];
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buffer_u16[i] += (buffer[2 + i * 2] << 8);
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}
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// put it into a nice struct :)
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memcpy((void *) data, (void *) buffer_u16, 30);
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return (sum == data->checksum);
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}
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} // namespace pmsa003i
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} // namespace esphome
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