24 lines
483 B
C++
24 lines
483 B
C++
#include "TMP102.h"
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#define TEMP_REG_ADDR 0x00
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TMP102::TMP102(PinName sda, PinName scl, int addr) : m_i2c(sda, scl), m_addr(addr) {
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m_i2c.frequency(400000);
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}
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TMP102::~TMP102() { }
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float TMP102::read() {
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const char tempRegAddr = TEMP_REG_ADDR;
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m_i2c.write(m_addr, &tempRegAddr, 1);
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char reg[2] = {0,0};
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m_i2c.read(m_addr, reg, 2);
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unsigned short res = (reg[0] << 4) | (reg[1] >> 4);
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float temp = (float) ((float)res * 0.0625);
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return temp;
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}
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