Thermal camera with 0.96 oled monochrome display

1#include <Arduino.h>
2
3#include <U8g2lib.h>
4
5#include <Adafruit_AMG88xx.h>
6
7#ifdef  U8X8_HAVE_HW_SPI#include <SPI.h>
8
9#endif
10#ifdef U8X8_HAVE_HW_I2C#include  <Wire.h>
11
12#endif
13
14// Function to determine to which bin temp reading  belongs.
15// Used further down the road to decide what character to display.
16
17int  getDisplayValueOfTemp(float temp, int range_start, int range_end) {
18  float step_size;
19  int return_value = 1;
20  step_size = (range_end - range_start) / 8.00; // 8  is number of possible values on displa
21  if (temp > range_end) {
22    return  8;
23  }
24  do {
25    if (temp <= (return_value * step_size + range_start))  {
26      return return_value;
27    }
28    return_value = return_value + 1;
29  } while (return_value <= 8);
30}
31
32
33Adafruit_AMG88xx amg;
34U8X8_SSD1306_128X64_NONAME_HW_I2C  u8x8( /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // All Boards  without Reset of the Display 
35
36
37float ir_camera_pixels[64];
38
39void  setup() {
40  Serial.begin(9600);
41  u8x8.begin();
42
43  bool status;
44  status = amg.begin();
45  if (!status) {
46    Serial.println("Could not find  a valid AMG88xx sensor, check wiring!");
47    while (1);
48  }
49  u8x8.begin();
50  u8x8.setPowerSave(0);
51  Serial.println(F("Hardware init is done !"));
52
53}
54
55void  loop() {
56  int row_num = 0;
57  int col_num = 0;
58  amg.readPixels(ir_camera_pixels);
59  u8x8.setFont(u8x8_font_chroma48medium8_r);
60  // Picture Main Loop 
61  for  (int i = 0; i < 64; i++) {
62    float temp = ir_camera_pixels[i];
63    int character_to_display  = getDisplayValueOfTemp(temp, 20, 35); // change last two values to change temp  range
64    if ((i % 8) == 0) {
65      row_num = row_num + 1;
66      col_num  = 0;
67    }
68
69    switch (character_to_display) {
70    case 1:
71      u8x8.drawString(col_num,  row_num, ".");
72      break;
73    case 2:
74      u8x8.drawString(col_num,  row_num, ":");
75      break;
76    case 3:
77      u8x8.drawString(col_num,  row_num, "-");
78      break;
79    case 4:
80      u8x8.drawString(col_num,  row_num, "=");
81      break;
82    case 5:
83      u8x8.drawString(col_num,  row_num, "+");
84      break;
85    case 6:
86      u8x8.drawString(col_num,  row_num, "*");
87      break;
88    case 7:
89      u8x8.drawString(col_num,  row_num, "#");
90      break;
91    case 8:
92      u8x8.drawString(col_num,  row_num, "@");
93      break;
94    }
95
96    col_num = col_num + 1;
97  }
98
99}