Mikroelektronika d.o.o.
Grid-EYE Click Board
Grid-EYE Click Board
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The Grid-EYE Click Board™ is an 8x8 thermal array sensor-detector that carries the AMG8853 infrared array sensor from Panasonic.
The Click Board™ is designed to run on either a 3.3V or 5V power supply. It communicates with the target MCU over the I2C interface.
Use the Grid-EYE Click Board™ to detect absolute surface temperature without any contact. Or use it to detect the movement of people and objects.
Software Support
Code examples for the Grid-EYE Click Board™, 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 // Draw screen
11 DrawScreen();
12
13 // variable declaration
14 x_start = 80;
15 element_dimension = 20;
16 j = 0;
17
18 // Set AMG88 sensor registers
19 GridEye_WriteByte(0x00,0x00); // Normal mode
20 GridEye_WriteByte(0x01,0x30); // Flag reset
21 GridEye_WriteByte(0x02,0x00); // Frame mode 10FPS
22 Delay_ms(100); // small delay
23
24 GridEye_WriteByte(0x08,0x30); // INTHL
25 GridEye_WriteByte(0x09,0x00); // INTHH
26
27 GridEye_WriteByte(0x0A,0x15); // INTLL
28 GridEye_WriteByte(0x0B,0x00); // INTLH
29
30 GridEye_WriteByte(0x0C,0x20); // IHYSL
31 GridEye_WriteByte(0x0D,0x00); // IHYSH
32 Delay_ms(100); // small delay
33
34 // Temperature register value
35 register_address = 0x80;
36
37 while(1) {
38 // Reading grid temperature
39 for(i = 0; i < 64; i++) {
40 // multiply the values with 0.25 to get temperature in [C]
41 gridArray[i] = (float)GridEye_ReadWord(register_address) * 0.25L;
42 // increment register address by 2
43 register_address = register_address + 2;
44 }
45
46 // draw grid
47 for(i = 0; i < 64; i++) {
48 // set row position
49 Set_Row_Position();
50
51 // set color
52 color = Set_Color();
53
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 }
Grid-EYE Click Board
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