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https://github.com/airgradienthq/arduino.git
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76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
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#ifndef _PMS_BASE_H_
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#define _PMS_BASE_H_
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#include <Arduino.h>
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/**
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* @brief Class define how to handle plantower PMS sensor it's upport for
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* PMS5003 and PMS5003T series. The data @ref AMB_TMP and @ref AMB_HUM only
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* valid on PMS5003T
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*/
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class PMS {
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public:
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static const uint16_t SINGLE_RESPONSE_TIME = 1000;
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static const uint16_t TOTAL_RESPONSE_TIME = 1000 * 10;
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static const uint16_t STEADY_RESPONSE_TIME = 1000 * 30;
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// static const uint16_t BAUD_RATE = 9600;
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struct DATA {
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// Standard Particles, CF=1
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uint16_t PM_SP_UG_1_0;
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uint16_t PM_SP_UG_2_5;
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uint16_t PM_SP_UG_10_0;
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// Atmospheric environment
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uint16_t PM_AE_UG_1_0;
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uint16_t PM_AE_UG_2_5;
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uint16_t PM_AE_UG_10_0;
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// Raw particles count (number of particles in 0.1l of air
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uint16_t PM_RAW_0_3;
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uint16_t PM_RAW_0_5;
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uint16_t PM_RAW_1_0;
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uint16_t PM_RAW_2_5;
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uint16_t PM_RAW_5_0;
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uint16_t PM_RAW_10_0;
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// Formaldehyde (HCHO) concentration in mg/m^3 - PMSxxxxST units only
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uint16_t AMB_HCHO;
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// Temperature & humidity - PMSxxxxST units only
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int16_t AMB_TMP;
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uint16_t AMB_HUM;
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};
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bool begin(Stream *stream);
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void sleep();
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void wakeUp();
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void activeMode();
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void passiveMode();
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void requestRead();
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bool read(DATA &data);
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bool readUntil(DATA &data, uint16_t timeout = SINGLE_RESPONSE_TIME);
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private:
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enum STATUS { STATUS_WAITING, STATUS_OK };
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enum MODE { MODE_ACTIVE, MODE_PASSIVE };
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uint8_t _payload[50];
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Stream *_stream;
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DATA *_data;
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STATUS _status;
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MODE _mode = MODE_ACTIVE;
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uint8_t _index = 0;
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uint16_t _frameLen;
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uint16_t _checksum;
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uint16_t _calculatedChecksum;
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void loop();
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char Char_PM2[10];
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};
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#endif
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