mirror of
https://github.com/esphome/esphome.git
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ac0d921413
* Socket refactor and SSL * esp-idf temp * Fixes * Echo component and noise * Add noise API transport support * Updates * ESP-IDF * Complete * Fixes * Fixes * Versions update * New i2c APIs * Complete i2c refactor * SPI migration * Revert ESP Preferences migration, too complex for now * OTA support * Remove echo again * Remove ssl again * GPIOFlags updates * Rename esphal and ICACHE_RAM_ATTR * Make ESP32 arduino compilable again * Fix GPIO flags * Complete pin registry refactor and fixes * Fixes to make test1 compile * Remove sdkconfig file * Ignore sdkconfig file * Fixes in reviewing * Make test2 compile * Make test4 compile * Make test5 compile * Run clang-format * Fix lint errors * Use esp-idf APIs instead of btStart * Another round of fixes * Start implementing ESP8266 * Make test3 compile * Guard esp8266 code * Lint * Reformat * Fixes * Fixes v2 * more fixes * ESP-IDF tidy target * Convert ARDUINO_ARCH_ESPxx * Update WiFiSignalSensor * Update time ifdefs * OTA needs millis from hal * RestartSwitch needs delay from hal * ESP-IDF Uart * Fix OTA blank password * Allow setting sdkconfig * Fix idf partitions and allow setting sdkconfig from yaml * Re-add read/write compat APIs and fix esp8266 uart * Fix esp8266 store log strings in flash * Fix ESP32 arduino preferences not initialized * Update ifdefs * Change how sdkconfig change is detected * Add checks to ci-custom and fix them * Run clang-format * Add esp-idf clang-tidy target and fix errors * Fixes from clang-tidy idf round 2 * Fixes from compiling tests with esp-idf * Run clang-format * Switch test5.yaml to esp-idf * Implement ESP8266 Preferences * Lint * Re-do PIO package version selection a bit * Fix arduinoespressif32 package version * Fix unit tests * Lint * Lint fixes * Fix readv/writev not defined * Fix graphing component * Re-add all old options from core/config.py Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
#include "mcp9808.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace mcp9808 {
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static const uint8_t MCP9808_REG_AMBIENT_TEMP = 0x05;
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static const uint8_t MCP9808_REG_MANUF_ID = 0x06;
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static const uint8_t MCP9808_REG_DEVICE_ID = 0x07;
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static const uint16_t MCP9808_MANUF_ID = 0x0054;
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static const uint16_t MCP9808_DEV_ID = 0x0400;
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static const uint8_t MCP9808_AMBIENT_CLEAR_FLAGS = 0x1F;
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static const uint8_t MCP9808_AMBIENT_CLEAR_SIGN = 0x0F;
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static const uint8_t MCP9808_AMBIENT_TEMP_NEGATIVE = 0x10;
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static const char *const TAG = "mcp9808";
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void MCP9808Sensor::setup() {
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ESP_LOGCONFIG(TAG, "Setting up %s...", this->name_.c_str());
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uint16_t manu = 0;
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if (!this->read_byte_16(MCP9808_REG_MANUF_ID, &manu) || manu != MCP9808_MANUF_ID) {
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this->mark_failed();
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ESP_LOGE(TAG, "%s manufacuturer id failed, device returned %X", this->name_.c_str(), manu);
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return;
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}
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uint16_t dev_id = 0;
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if (!this->read_byte_16(MCP9808_REG_DEVICE_ID, &dev_id) || dev_id != MCP9808_DEV_ID) {
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this->mark_failed();
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ESP_LOGE(TAG, "%s device id failed, device returned %X", this->name_.c_str(), dev_id);
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return;
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}
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}
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void MCP9808Sensor::dump_config() {
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ESP_LOGCONFIG(TAG, "%s:", this->name_.c_str());
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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 %s failed!", this->name_.c_str());
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}
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LOG_UPDATE_INTERVAL(this);
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LOG_SENSOR(" ", "Temperature", this);
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}
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void MCP9808Sensor::update() {
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uint16_t raw_temp;
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if (!this->read_byte_16(MCP9808_REG_AMBIENT_TEMP, &raw_temp)) {
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this->status_set_warning();
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return;
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}
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if (raw_temp == 0xFFFF) {
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this->status_set_warning();
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return;
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}
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float temp = NAN;
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uint8_t msb = (uint8_t)((raw_temp & 0xff00) >> 8);
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uint8_t lsb = raw_temp & 0x00ff;
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msb = msb & MCP9808_AMBIENT_CLEAR_FLAGS;
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if ((msb & MCP9808_AMBIENT_TEMP_NEGATIVE) == MCP9808_AMBIENT_TEMP_NEGATIVE) {
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msb = msb & MCP9808_AMBIENT_CLEAR_SIGN;
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temp = (256 - ((uint16_t)(msb) *16 + lsb / 16.0f)) * -1;
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} else {
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temp = (uint16_t)(msb) *16 + lsb / 16.0f;
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}
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if (std::isnan(temp)) {
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this->status_set_warning();
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return;
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}
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ESP_LOGD(TAG, "%s: Got temperature=%.4f°C", this->name_.c_str(), temp);
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this->publish_state(temp);
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this->status_clear_warning();
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}
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float MCP9808Sensor::get_setup_priority() const { return setup_priority::DATA; }
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} // namespace mcp9808
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} // namespace esphome
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