clavinrali/amg8833_simple

readme

# AMG8833 Infrared Array Sensor Grid-EYE component

This is a simple and minimal driver for AMG8833 Low resolution IR camera sensor.
This driver can read the onboad thermistor and frame data. It uses the new I2C master APIs

![IR frame](IRFrame.png)

Check out the project [esp_IRframecapture](https://github.com/clavinrali/esp_IRframecapture) which is based on this driver. It captures the frame over tcp.
It may or may not be a public repo. If it is not accessible, I've made it private.

## API
```C
esp_err_t amg8833_config(struct amg8833_dev_s *dev);										//Configuration function, should be called first
esp_err_t amg8833_get_temp(struct amg8833_dev_s *dev, float *buff);							//Get on-board thermistor value
esp_err_t amg8833_get_frame(struct amg8833_dev_s *dev, float *buff, size_t in_buff_size);	//Get the pixel values, size should be 64
esp_err_t amg8833_get_rawframe(struct amg8833_dev_s *dev, int16_t *in_buff, size_t in_buff_size);	//Get raw pixel values, size should be 64
```


## Example

```C
void app_main(void)
{
        ESP_LOGI(TAG, "Main Function");

        i2c_master_bus_handle_t bus_handle = NULL;

        i2c_master_bus_config_t i2c_mst_config = {
                .clk_source = I2C_CLK_SRC_DEFAULT,
                .i2c_port = I2C_NUM_0,
                .scl_io_num = 9,
                .sda_io_num = 10,
                .glitch_ignore_cnt = 7,
                .flags.enable_internal_pullup = true,
        };

        ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_mst_config, &bus_handle));

        struct amg8833_dev_s amg8833_dev = {
                .dev_addr = 0x69,
                .i2c_bus_handle = bus_handle
        };

        vTaskDelay(pdMS_TO_TICKS(150));

        //Call AMG8833 Config
        ESP_ERROR_CHECK(amg8833_config(&amg8833_dev));


        float val = 0;
        float buf[64];
        int16_t rawbuf[64];
        while(1){
                //Get On-board thermistor Value
                ESP_ERROR_CHECK(amg8833_get_temp(&amg8833_dev, &val));

                ESP_LOGI(TAG, "On-board Temperature : %f", val);

                //Get pixel values
                ESP_ERROR_CHECK(amg8833_get_frame(&amg8833_dev, buf, 64));

                ESP_LOGI(TAG, "Frame :");
                for(int i=0; i<64; i+=8){
                        ESP_LOGI(TAG, "%f, %f, %f, %f, %f, %f, %f, %f", buf[i],buf[i+1], buf[i+2],buf[i+3],buf[i+4],buf[i+5],buf[i+6],buf[i+7]);
                }
                vTaskDelay(pdMS_TO_TICKS(150));

                //Get RAW pixel values
                ESP_ERROR_CHECK(amg8833_get_rawframe(&amg8833_dev, rawbuf, 64));

                ESP_LOGI(TAG, "Raw Frame :");
                for(int i=0; i<64; i+=8){
                        ESP_LOGI(TAG, "%d, %d, %d, %d, %d, %d, %d, %d", rawbuf[i],rawbuf[i+1],rawbuf[i+2],rawbuf[i+3],rawbuf[i+4],rawbuf[i+5],rawbuf[i+6],rawbuf[i+7]);
                }
                vTaskDelay(pdMS_TO_TICKS(150));
        }
}
```