mirror of
https://github.com/RobTillaart/Arduino.git
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66 lines
1.1 KiB
C++
66 lines
1.1 KiB
C++
//
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// FILE: SHT31_I2Cspeed
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// AUTHOR: Rob Tillaart
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// PURPOSE: testing the performance at different I2C speeds
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// URL: https://github.com/RobTillaart/SHT31_SW
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#include "SoftWire.h"
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#include "SHT31_SW.h"
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#define SHT31_ADDRESS 0x44
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SoftWire sw(6, 7);
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uint32_t start;
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uint32_t stop;
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SHT31_SW sht;
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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Serial.print("SHT31_LIB_VERSION: \t");
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Serial.println(SHT31_SW_LIB_VERSION);
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sw.begin();
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sht.begin(SHT31_ADDRESS, &sw);
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sw.setClock(100000);
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uint16_t stat = sht.readStatus();
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Serial.print(stat, HEX);
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Serial.println();
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}
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void loop()
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{
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for (uint32_t I2Cfreq = 50000; I2Cfreq < 500000; I2Cfreq += 50000)
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{
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Serial.print(I2Cfreq/1000);
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sw.setClock(I2Cfreq);
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test();
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}
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}
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void test()
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{
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start = micros();
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sht.read(true); // default = true/fast slow = false
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stop = micros();
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Serial.print("\t");
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Serial.print(stop - start);
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Serial.print("\t");
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Serial.print(sht.getTemperature(), 1);
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Serial.print("\t");
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Serial.println(sht.getHumidity(), 1);
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delay(100);
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}
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// -- END OF FILE --
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