amg8853

AMG8853 driver for ATMega 64 (or any other Atmel AVR MCU)

Example

#include "amg8853.h"

int main(void) {

    // initializes driver
    amg8853_init();

    // initializes buffer
    uint8_t amg8853_read_data_buff[128];

    // read data
    amg8853_twi_read_64_tem(amg8853_read_data_buff);

    // initializes result
    uint8_t sign, celsius_temperature_integer_part, celsius_temperature_decimal_part;

    // temperature convert
    uint8_t i;
    for (i = 0; i < 64; i++) {
        amg8853_tem_convert(amg8853_read_data_buff, i, 
            &sign, &celsius_temperature_integer_part, &celsius_temperature_decimal_part);
        
        // do something
        
    }

    return 0;
}

API

void amg8853_init()

Initializes the driver. Should be called once before reading data from amg8853.

void amg8853_twi_read_64_tem(uint8_t buff[])

Receive 128 bytes data from amg8853 using twi.

• buff - buffer. 128 bytes. Should be initialized before calling this function.

void amg8853_tem_convert(uint8_t buff[], uint8_t snumber, uint8_t *sign, uint8_t *integer_part, uint8_t *decimal_part)

Convert the data to Celsius temperature.

• in

  • buff - data from amg8853. 128 bytes.
  • snumber - sensor index 0~63

• out

  • sign - sign of the result 1:negative, 0:positive
  • integer_part - integer part of the result 0~255
  • decimal_part - decimal part of the result (multiply by 100) 0~99

Definitions

• F_CPU - should be defined as the CPU Clock frequency
• AMG8853_DELAY - not used
• AMG8853_TEM_START_ADDR - start address of temperature registers. do not need to modify
• AMG8853_SENSOR_ADDR - 0b1101000 or 0b1101010
• AMG8853_WRITE - not used
• AMG8853_READ - not used