MIKROE-2539

Grid-EYE click PID: MIKROE-2539 Weight: 30 g     Grid-EYE click is a 8x8 thermal array sensor-detector that carries the AMG8853 infrared array sensor from Panasonic. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target MCU over I2C interface. Use the Grid-EYE click to detect absolute surface temperature without any contact. Or use it to detect the movement of people and objects. Take a look at how Panasonic's AMG8853 64 thermal sensors see a moving hand: AMG8853 sensor features The AMG8853 is made out of 64 individual thermal sensors. It can build an image according to the heat it detects. You don’t need light to form a picture. The temperature measuring range is from -20°C to +100°C. The detecting distance is 5m, the viewing angle 60 degrees. The AMG8853 has a built-in thermistor for suppressing ambient temperature noise. The I2C levels and address are jumper selectable, while the AMG8853 is supplied with designated voltage. Infrared sensor Infrared waves are outside the visible spectrum of the human eye, just like radio waves. Even though people can’t see infrared waves, they can certainly feel them, in the form of heat. Our bodies emit heat or infrared radiation, and the AMG8853 thermal array sensor can detect it. Key features    AMG8853 infrared array sensor   o 5m detecting distance  o 60 degrees viewing angle  o 0.25°C temperature resolution  o Typical current consumption: 4.5mA  o Time to stabilize the output: 15 seconds  o Frame rate: 1f/sec or 10f/sec  I2C interface  3.3V or 5V power supply  Product Type Applications MCU Key Features Key Benefits Interface Power Supply Compatibility Click board size Temperature / Humidity Thermal imaging systems, detecting movement of people and objects, etc AMG8853 thermal array sensor from Panasonic 5 m detecting distance, 60 degrees viewing angle, 64 individual thermal sensors Detect absolute surface temperature without any contact I2C 3.3V or 5V mikroBUS M (42.9 x 25.4 mm) Pinout diagram This table shows how the pinout on Grid-EYE click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes    Pin  Pin Notes  mikroBUStm  Not connected  NC  1  AN  PWM  16 NC Not connected Not connected  NC  2  RST  INT  15 INT INT out to MCU Not connected  NC  3  CS  TX  14 NC Not connected Not connected  NC  4  SCK  RX  13 NC Not connected Not connected  NC  5  MISO  SCL  12 SCL I2C SCK  Not connected  NC  6  MOSI  SDA  11 SDA I2C data  Power supply  +3.3V  7  3.3V  5V  10 +5V Power supply  Ground  GND  8  GND  GND  9 GND Ground  Jumpers and settings Default  Position  Designator  Name  Default  Option  Description  JP1  LOGIC  SEL  Left  3.3V  Logic Level Voltage Selection, left position 3.3V,  right position 5V  JP2  ADDR  SEL  Right  0  I2C address selection, right 0 (0b1101 000) Left 1  (0b1101 001)  Buttons and LEDs Designator  Name  Type (LED, BUTTON…) PWR  Power  LED  Description  Power supply LED, lights green when power is on.  Maximum ratings Description  Min Typ Max Unit Supply Voltage (with AMG8853 module) 5  5 V  I2C Levels (JP1 select)  0  5 V  INT out (JP1 select)  0  5 V  Programming Code examples for Grid-EYE click, written for MikroElektronika hardware and compilers are available on Libstock. Code snippet This code converts the grid array sensor data to temperature [in C] and fills the grid array drawn on the TFT display by the appropriate color, depending on the temperature detected. 01 void main() { 02 // Initialize pins as digital I/O 03 AD1PCFG = 0xFFFF; 04 JTAGEN_bit = 0; 05 06 // Initialize I2C2 module 07 I2C2_Init(100000); 08 Delay_ms(100); 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 // Draw screen DrawScreen(); // variable declaration x_start = 80; element_dimension = 20; j = 0; // Set AMG88 sensor registers GridEye_WriteByte(0x00,0x00); GridEye_WriteByte(0x01,0x30); GridEye_WriteByte(0x02,0x00); Delay_ms(100); // // // // GridEye_WriteByte(0x08,0x30); GridEye_WriteByte(0x09,0x00); // INTHL // INTHH GridEye_WriteByte(0x0A,0x15); GridEye_WriteByte(0x0B,0x00); // INTLL // INTLH GridEye_WriteByte(0x0C,0x20); GridEye_WriteByte(0x0D,0x00); Delay_ms(100); // IHYSL // IHYSH // small delay Normal mode Flag reset Frame mode 10FPS small delay // Temperature register value register_address = 0x80; while(1) { // Reading grid temperature for(i = 0; i < 64; i++) { // multiply the values with 0.25 to get temperature in [C] gridArray[i] = (float)GridEye_ReadWord(register_address) * 0.25L; // increment register address by 2 register_address = register_address + 2; } // draw grid for(i = 0; i < 64; i++) { // set row position Set_Row_Position(); // set color color = Set_Color(); 54 // set grid element number 55 j++; 56 57 // fill grid element with color 58 TFT_Set_Brush(1, 0, 1, LEFT_TO_RIGHT, color, color); 59 60 // draw grid element 61 TFT_Rectangle(x_start + (element_dimension * (j - 1)), y_start , x_start + (element_dimension * j), y_end); 62 63 // if more than 8 elements in the row, reset counter 64 if (j >= 8) { 65 j = 0; 66 } 67 } 68 } 69 } https://shop.mikroe.com/click/sensors/grid-eye 3/21/2017