-
Notifications
You must be signed in to change notification settings - Fork 0
/
bitcoinTracker.ino
216 lines (186 loc) · 12.6 KB
/
bitcoinTracker.ino
1
2
3
4
5
6
7
8
9
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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
#include <Adafruit_SSD1306.h> //Include the required libraries
#include <WiFi.h>
#include <Wire.h>
#include <HTTPClient.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <ArduinoJson.h>
#define SCREEN_WIDTH 128 //Define the OLED display width and height
#define SCREEN_HEIGHT 64
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C //I2C address for display
#define upLED 13
#define downLED 12
Adafruit_SSD1306 display (SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); //Create the display object
const char* ssid = "WiFi Name"; //Set your WiFi network name and password
const char* password = "Password";
const int httpsPort = 443; //Bitcoin price API powered by CoinGecko
const String url = "https://api.coingecko.com/api/v3/simple/price?ids=bitcoin&vs_currencies=USD&include_24hr_change=true";
WiFiClient client; //Create a new WiFi client
HTTPClient http;
String formattedDate; //Create variables to store the date and time
String dayStamp;
String timeStamp;
const unsigned char bitcoinLogo [] PROGMEM = // 'Bitcoin Logo', 128x64px
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xc0, 0x3f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0x00, 0x03, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf0, 0x00, 0x00, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xc0, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x03, 0xe7, 0xc0, 0x07, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x03, 0xe7, 0xc0, 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x02, 0x24, 0x40, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x02, 0x24, 0x40, 0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0xc0, 0x02, 0x24, 0x40, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x02, 0x24, 0x40, 0x00, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0x80, 0x02, 0x3c, 0x40, 0x00, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x07, 0x03, 0xfe, 0x3c, 0x7c, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x06, 0x03, 0x00, 0x00, 0x1f, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0e, 0x03, 0x00, 0x00, 0x01, 0xc0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0c, 0x03, 0x00, 0x00, 0x00, 0xc0, 0x03, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1c, 0x03, 0xf0, 0x3f, 0x80, 0x60, 0x03, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0xf0, 0x3f, 0xe0, 0x20, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x18, 0x30, 0x70, 0x30, 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x18, 0x30, 0x10, 0x30, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x18, 0x30, 0x10, 0x30, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x18, 0x30, 0x10, 0x30, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x18, 0x30, 0x30, 0x20, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x18, 0x30, 0xe0, 0x60, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x18, 0x3f, 0xc0, 0xc0, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x18, 0x00, 0x01, 0xc0, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x18, 0x00, 0x00, 0xf0, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x18, 0x00, 0x00, 0x38, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x18, 0x3f, 0xe0, 0x18, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x18, 0x30, 0xf8, 0x0c, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x18, 0x30, 0x1c, 0x0c, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x18, 0x30, 0x0c, 0x0c, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x70, 0x00, 0x18, 0x30, 0x04, 0x0c, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x18, 0x30, 0x0c, 0x0c, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x18, 0x30, 0x0c, 0x0c, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x38, 0x00, 0x18, 0x30, 0x38, 0x0c, 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x18, 0x01, 0xf0, 0x3f, 0xf0, 0x08, 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1c, 0x01, 0xe0, 0x1f, 0x00, 0x18, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1c, 0x01, 0x00, 0x00, 0x00, 0x30, 0x03, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0e, 0x03, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x06, 0x03, 0x00, 0x00, 0x0f, 0xc0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x07, 0x03, 0xfe, 0x3c, 0x7e, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0x80, 0x02, 0x3c, 0x40, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x02, 0x24, 0x40, 0x00, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0xc0, 0x02, 0x24, 0x40, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x02, 0x24, 0x40, 0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x02, 0x24, 0x40, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x03, 0xe7, 0xc0, 0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x03, 0xe7, 0xc0, 0x07, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xc0, 0x00, 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf0, 0x00, 0x00, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x03, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xc0, 0x3f, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void setup()
{
Serial.begin(115200); //Start the serial monitor
pinMode(upLED, OUTPUT); //Define the LED pin outputs
pinMode(downLED, OUTPUT);
if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) //Connect to the display
{
Serial.println(F("SSD1306 allocation failed"));
for (;;); // Don't proceed, loop forever
}
display.clearDisplay(); //Clear the display
display.setTextColor(SSD1306_WHITE); //Set the text colour to white
display.drawBitmap(0, 0, bitcoinLogo, 128, 64, WHITE); //Display bitmap from array
display.display();
delay(2000);
display.clearDisplay(); //Clear the display
display.setTextSize(1); //Set display parameters
display.setTextColor(WHITE);
display.println("Connecting to WiFi...");
display.display();
WiFi.begin(ssid, password);
Serial.print("Connecting to WiFi...");
while (WiFi.status() != WL_CONNECTED) //Connect to the WiFi network
{
delay(500);
Serial.print(".");
}
Serial.println();
display.println("Connected to: "); //Display message once connected
display.print(ssid);
display.display();
delay(1500);
display.clearDisplay();
display.display();
}
void loop()
{
Serial.print("Connecting to "); //Display url on Serial monitor for debugging
Serial.println(url);
http.begin(url);
int httpCode = http.GET(); //Get crypto price from API
StaticJsonDocument<2000> doc;
DeserializationError error = deserializeJson(doc, http.getString());
if (error) //Display error message if unsuccessful
{
Serial.print(F("deserializeJson Failed"));
Serial.println(error.f_str());
delay(2500);
return;
}
Serial.print("HTTP Status Code: ");
Serial.println(httpCode);
String BTCUSDPrice = doc["bitcoin"]["usd"].as<String>();
//Store crypto price and update date in local variables
float USD24hrFloat = doc["bitcoin"]["usd_24h_change"].as<float>();
String USDChange = String(USD24hrFloat, 3);
http.end();
Serial.print("BTCUSD Price: "); //Display current price on serial monitor
Serial.println(BTCUSDPrice.toDouble());
Serial.print("Yesterday's Price: "); //Display yesterday's price on serial monitor
Serial.println(USDChange);
bool isUp = USD24hrFloat > 0; //Check whether price has increased or decreased
double percentChange;
String dayChangeString = "24hr. Change: ";
if (isUp) //If price has increased from yesterday
{
digitalWrite(upLED, HIGH);
digitalWrite(downLED, LOW);
}
else //If price has decreased from yesterday
{
digitalWrite(downLED, HIGH);
digitalWrite(upLED, LOW);
}
Serial.print("Percent Change: "); //Display the percentage change on the serial monitor
Serial.println(USDChange);
display.clearDisplay(); //Clear the OLED display
display.setTextSize(1);
printCenter("BTC/USD", 0, 0); //Display the comparison header
display.setTextSize(2);
printCenter("$" + BTCUSDPrice, 0, 25); //Display the current price
display.setTextSize(1); //Display the change percentage
dayChangeString = dayChangeString + USDChange + "%";
printCenter(dayChangeString, 0, 55);
display.display(); //Execute the new display
http.end(); //End the WiFi connection
delay(15000);
}
void printCenter(const String buf, int x, int y) //Function to centre the current price in the display width
{
int16_t x1, y1;
uint16_t w, h;
display.getTextBounds(buf, x, y, &x1, &y1, &w, &h); //Calculate string width
display.setCursor((x - w / 2) + (128 / 2), y); //Set cursor to print string in centre
display.print(buf); //Display string
}