d38f88cb80
- Basic I2C communication with byte-swapped register addresses - Chip detection via product code register - getProductID() function for 48-bit unique product ID - Test example sketch - GitHub CI workflow and clang-format configuration 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
87 lines
No EOL
2.3 KiB
C++
87 lines
No EOL
2.3 KiB
C++
/*!
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* @file Adafruit_MLX90632.cpp
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*
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* I2C Driver for MLX90632 Far Infrared Temperature Sensor
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*
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* This is a library for the Adafruit MLX90632 breakout:
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* http://www.adafruit.com/products
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*
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* Adafruit invests time and resources providing this open source code,
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* please support Adafruit and open-source hardware by purchasing products from
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* Adafruit!
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*
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* BSD license (see license.txt)
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*/
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#include "Adafruit_MLX90632.h"
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/*!
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* @brief Instantiates a new MLX90632 class
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*/
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Adafruit_MLX90632::Adafruit_MLX90632() {}
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/*!
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* @brief Cleans up the MLX90632
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*/
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Adafruit_MLX90632::~Adafruit_MLX90632() {
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if (i2c_dev) {
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delete i2c_dev;
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}
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}
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/*!
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* @brief Sets up the hardware and initializes I2C
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* @param i2c_address
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* The I2C address to be used.
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* @param wire
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* The Wire object to be used for I2C connections.
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* @return True if initialization was successful, otherwise false.
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*/
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bool Adafruit_MLX90632::begin(uint8_t i2c_address, TwoWire *wire) {
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if (i2c_dev) {
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delete i2c_dev;
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}
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i2c_dev = new Adafruit_I2CDevice(i2c_address, wire);
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if (!i2c_dev->begin()) {
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return false;
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}
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Adafruit_BusIO_Register product_code_reg =
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Adafruit_BusIO_Register(i2c_dev, swapBytes(MLX90632_REG_EE_PRODUCT_CODE), 2, MSBFIRST, 2);
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uint16_t product_code = product_code_reg.read();
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if (product_code == 0xFFFF || product_code == 0x0000) {
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return false;
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}
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return true;
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}
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/*!
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* @brief Read the 48-bit product ID
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* @return Product ID (48-bit value in uint64_t)
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*/
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uint64_t Adafruit_MLX90632::getProductID() {
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Adafruit_BusIO_Register id0_reg =
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Adafruit_BusIO_Register(i2c_dev, swapBytes(MLX90632_REG_ID0), 2, MSBFIRST, 2);
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Adafruit_BusIO_Register id1_reg =
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Adafruit_BusIO_Register(i2c_dev, swapBytes(MLX90632_REG_ID1), 2, MSBFIRST, 2);
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Adafruit_BusIO_Register id2_reg =
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Adafruit_BusIO_Register(i2c_dev, swapBytes(MLX90632_REG_ID2), 2, MSBFIRST, 2);
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uint16_t id0 = id0_reg.read();
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uint16_t id1 = id1_reg.read();
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uint16_t id2 = id2_reg.read();
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return ((uint64_t)id2 << 32) | ((uint64_t)id1 << 16) | id0;
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}
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/*!
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* @brief Byte swap helper for register addresses
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* @param value 16-bit value to swap
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* @return Byte-swapped value
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*/
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uint16_t Adafruit_MLX90632::swapBytes(uint16_t value) {
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return (value << 8) | (value >> 8);
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} |