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95 lines
2.6 KiB
95 lines
2.6 KiB
// -----------------------------------------------------------------------------
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// TMP3X Temperature Analog Sensor
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// Copyright (C) 2018 by Xose Pérez <xose dot perez at gmail dot com>
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// -----------------------------------------------------------------------------
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#if SENSOR_SUPPORT && TMP3X_SUPPORT
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#pragma once
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#if ADC_VCC_ENABLED
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ADC_MODE(ADC_VCC);
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#endif
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#include "Arduino.h"
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#include "BaseSensor.h"
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#define TMP3X_TMP35 35
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#define TMP3X_TMP36 36
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#define TMP3X_TMP37 37
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class TMP3XSensor : public BaseSensor {
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public:
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// ---------------------------------------------------------------------
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// Public
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// ---------------------------------------------------------------------
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TMP3XSensor(): BaseSensor() {
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_count = 1;
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_sensor_id = SENSOR_TMP3X_ID;
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}
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void setType(unsigned char type) {
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if (35 <= type && type <= 37) {
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_type = type;
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}
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}
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unsigned char getType() {
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return _type;
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}
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// ---------------------------------------------------------------------
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// Sensor API
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// ---------------------------------------------------------------------
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// Initialization method, must be idempotent
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void begin() {
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pinMode(0, INPUT);
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_ready = true;
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}
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// Descriptive name of the sensor
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String description() {
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char buffer[14];
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snprintf(buffer, sizeof(buffer), "TMP%d @ TOUT", _type);
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return String(buffer);
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}
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// Descriptive name of the slot # index
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String slot(unsigned char index) {
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return description();
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};
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// Address of the sensor (it could be the GPIO or I2C address)
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String address(unsigned char index) {
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return String("0");
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}
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// Type for slot # index
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unsigned char type(unsigned char index) {
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if (index == 0) return MAGNITUDE_TEMPERATURE;
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return MAGNITUDE_NONE;
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}
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// Current value for slot # index
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double value(unsigned char index) {
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if (index == 0) {
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double mV = 3300.0 * analogRead(0) / 1024.0;
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if (_type == TMP3X_TMP35) return mV / 10.0;
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if (_type == TMP3X_TMP36) return mV / 10.0 - 50.0;
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if (_type == TMP3X_TMP37) return mV / 20.0;
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}
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return 0;
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}
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private:
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unsigned char _type = TMP3X_TMP35;
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};
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#endif // SENSOR_SUPPORT && TMP3X_SUPPORT
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