mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
98 lines
2.1 KiB
C++
98 lines
2.1 KiB
C++
//
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// FILE: CHT8305_minimal.ino
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// AUTHOR: Rob Tillaart
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// PURPOSE: Demo for CHT8305 I2C humidity & temperature sensor
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//
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// Always check datasheet - front view
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//
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// +---------------+
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// VCC ----| VCC |
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// SDA ----| SDA CHT8305 | TODO CHECK DATASHEET.
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// GND ----| GND |
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// SCL ----| SCL |
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// ? ----| AD0 | ? depends on address to select
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// | |
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// IRQ ----| ALERT | only if enabled.
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// +---------------+
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#include "CHT8305.h"
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CHT8305 CHT;
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uint8_t count = 0;
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void setup()
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{
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CHT.begin(0x40); // default address
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Wire.setClock(400000);
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Serial.begin(115200);
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Serial.println(__FILE__);
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Serial.print("CHT8305_LIB_VERSION: ");
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Serial.println(CHT8305_LIB_VERSION);
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Serial.println();
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Serial.println(CHT.getManufacturer());
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Serial.println(CHT.getVersionID());
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Serial.println(CHT.getVoltage());
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delay(1000);
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}
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void loop()
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{
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if (millis() - CHT.lastRead() >= 1000)
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{
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// READ DATA
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uint32_t start = micros();
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int status = CHT.read();
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uint32_t stop = micros();
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if ((count % 10) == 0)
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{
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count = 0;
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Serial.println();
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Serial.println("Type\tHumidity (%)\tTemp (°C)\tTime (µs)\tStatus");
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}
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count++;
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Serial.print("CHT8305\t");
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// DISPLAY DATA, sensor has only one decimal.
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Serial.print(CHT.getHumidity(), 1);
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Serial.print("\t\t");
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Serial.print(CHT.getTemperature(), 1);
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Serial.print("\t\t");
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Serial.print(stop - start);
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Serial.print("\t\t");
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switch (status)
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{
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case CHT8305_OK:
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Serial.print("OK");
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break;
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case CHT8305_ERROR_ADDR:
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Serial.print("Address error");
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break;
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case CHT8305_ERROR_I2C:
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Serial.print("I2C error");
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break;
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case CHT8305_ERROR_CONNECT:
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Serial.print("Connect error");
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break;
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case CHT8305_ERROR_LASTREAD:
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Serial.print("Last read error");
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break;
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default:
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Serial.print("Unknown error");
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break;
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}
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Serial.print("\n");
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}
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}
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// -- END OF FILE --
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