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72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
#include "sts3x.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace sts3x {
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static const char *const TAG = "sts3x";
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static const uint16_t STS3X_COMMAND_READ_SERIAL_NUMBER = 0x3780;
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static const uint16_t STS3X_COMMAND_READ_STATUS = 0xF32D;
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static const uint16_t STS3X_COMMAND_SOFT_RESET = 0x30A2;
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static const uint16_t STS3X_COMMAND_POLLING_H = 0x2400;
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/// Commands for future use
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static const uint16_t STS3X_COMMAND_CLEAR_STATUS = 0x3041;
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static const uint16_t STS3X_COMMAND_HEATER_ENABLE = 0x306D;
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static const uint16_t STS3X_COMMAND_HEATER_DISABLE = 0x3066;
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static const uint16_t STS3X_COMMAND_FETCH_DATA = 0xE000;
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void STS3XComponent::setup() {
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ESP_LOGCONFIG(TAG, "Setting up STS3x...");
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if (!this->write_command(STS3X_COMMAND_READ_SERIAL_NUMBER)) {
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this->mark_failed();
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return;
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}
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uint16_t raw_serial_number[2];
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if (!this->read_data(raw_serial_number, 1)) {
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this->mark_failed();
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return;
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}
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uint32_t serial_number = (uint32_t(raw_serial_number[0]) << 16);
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ESP_LOGV(TAG, " Serial Number: 0x%08X", serial_number);
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}
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void STS3XComponent::dump_config() {
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ESP_LOGCONFIG(TAG, "STS3x:");
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LOG_I2C_DEVICE(this);
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if (this->is_failed()) {
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ESP_LOGE(TAG, "Communication with ST3x failed!");
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}
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LOG_UPDATE_INTERVAL(this);
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LOG_SENSOR(" ", "STS3x", this);
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}
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float STS3XComponent::get_setup_priority() const { return setup_priority::DATA; }
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void STS3XComponent::update() {
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if (this->status_has_warning()) {
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ESP_LOGD(TAG, "Retrying to reconnect the sensor.");
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this->write_command(STS3X_COMMAND_SOFT_RESET);
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}
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if (!this->write_command(STS3X_COMMAND_POLLING_H)) {
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this->status_set_warning();
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return;
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}
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this->set_timeout(50, [this]() {
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uint16_t raw_data[1];
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if (!this->read_data(raw_data, 1)) {
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this->status_set_warning();
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return;
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}
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float temperature = 175.0f * float(raw_data[0]) / 65535.0f - 45.0f;
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ESP_LOGD(TAG, "Got temperature=%.2f°C", temperature);
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this->publish_state(temperature);
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this->status_clear_warning();
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});
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}
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} // namespace sts3x
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} // namespace esphome
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