OLED Display
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Synopsis
Demo of different graphics and test modes of SSD1306.
Code
1 //Arduino UNO
2 //SSD1306
3 ////Pin A4 SDA
4 ////Pin A5 SCL
5 #include <SPI.h>
6 #include <Wire.h>
7 #include <Adafruit_GFX.h>
8 #include <Adafruit_SSD1306.h>
9
10 #define SCREEN_WIDTH 128 // OLED display width, in pixels
11 #define SCREEN_HEIGHT 64 // OLED display height, in pixels
12
13 // Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
14 #define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)
15 Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
16
17 void setup()
18 {
19 Serial.begin(115200);
20
21 // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
22 if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
23 { // Address 0x3D for 128x64
24 Serial.println(F("SSD1306 allocation failed"));
25 for(;;); // Don't proceed, loop forever
26 }
27 display.clearDisplay();
28
29
30 testdrawchar(); // Draw characters of the default font
31
32 // testdrawstyles(); // Draw 'stylized' characters
33
34 // testscrolltext(); // Draw scrolling text
35
36 // Invert and restore display, pausing in-between
37 display.invertDisplay(true);
38 delay(1000);
39 display.invertDisplay(false);
40 delay(1000);
41
42 }
43
44
45 void loop() {
46 }
47
48
49 void testdrawchar(void) {
50 display.clearDisplay();
51
52 display.setTextSize(1); // Normal 1:1 pixel scale
53 display.setTextColor(SSD1306_WHITE); // Draw white text
54 display.setCursor(0, 0); // Start at top-left corner
55 display.cp437(true); // Use full 256 char 'Code Page 437' font
56
57 while(1){
58 display.setCursor(0,0); // Start at top-left corner
59 display.println(F(" CoolShit (TM) "));
60 display.println(F(" Battery Monitor "));
61 display.write(201);
62 for(int i=0;i<19;i++)
63 display.write(205);
64 display.write(187);
65 display.println(F(""));
66 display.write(186);
67 display.print(F(" A1=3.176 A2=3.175 "));
68 display.write(186);
69 display.println(F(""));
70 display.write(186);
71 display.print(F(" A3=3.176 A4=3.176 "));
72 display.write(186);
73 display.println(F(""));
74 display.write(186);
75 display.print(F(" A5=3.177 A6=3.177 "));
76 display.write(186);
77 display.println(F(""));
78 display.write(186);
79 display.print(F(" A7=3.177 A8=3.178 "));
80 display.write(186);
81 display.println(F(""));
82 display.write(200);
83 for(int i=0;i<19;i++)
84 display.write(205);
85 display.write(188);
86
87 display.display();
88 delay(4000);
89 display.invertDisplay(true);
90 delay(500);
91 display.invertDisplay(false);
92 display.clearDisplay();
93 delay(500);
94
95 display.setCursor(0,0); // Start at top-left corner
96 display.println(F(" CoolShit (TM) "));
97 display.println(F(" Battery Monitor "));
98 display.write(201);
99 for(int i=0;i<19;i++)
100 display.write(205);
101 display.write(187);
102 display.println(F(""));
103 display.write(186);
104 display.print(F(" B1=3.231 B2=3.232 "));
105 display.write(186);
106 display.println(F(""));
107 display.write(186);
108 display.print(F(" B3=3.231 B4=3.222 "));
109 display.write(186);
110 display.println(F(""));
111 display.write(186);
112 display.print(F(" B5=3.222 B6=3.223 "));
113 display.write(186);
114 display.println(F(""));
115 display.write(186);
116 display.print(F(" B7=3.234 B8=3.245 "));
117 display.write(186);
118 display.println(F(""));
119 display.write(200);
120 for(int i=0;i<19;i++)
121 display.write(205);
122 display.write(188);
123
124
125 display.display();
126 delay(4000);
127 display.invertDisplay(true);
128 delay(500);
129 display.invertDisplay(false);
130 display.clearDisplay();
131 delay(500);
132
133
134 display.setCursor(0,0); // Start at top-left corner
135 display.println(F(" CoolShit (TM) "));
136 display.println(F(" Battery Monitor "));
137 display.write(201);
138 for(int i=0;i<19;i++)
139 display.write(205);
140 display.write(187);
141 display.println(F(""));
142 display.write(186);
143 display.print(F(" C1=3.166 C2=3.165 "));
144 display.write(186);
145 display.println(F(""));
146 display.write(186);
147 display.print(F(" C3=3.165 C4=3.165 "));
148 display.write(186);
149 display.println(F(""));
150 display.write(186);
151 display.print(F(" C5=3.164 C6=3.153 "));
152 display.write(186);
153 display.println(F(""));
154 display.write(186);
155 display.print(F(" C7=3.164 C8=3.163 "));
156 display.write(186);
157 display.println(F(""));
158 display.write(200);
159 for(int i=0;i<19;i++)
160 display.write(205);
161 display.write(188);
162
163
164 display.display();
165 delay(4000);
166 display.invertDisplay(true);
167 delay(500);
168 display.invertDisplay(false);
169 display.clearDisplay();
170 delay(500);
171
172
173 display.setCursor(0,0); // Start at top-left corner
174 display.println(F(" CoolShit (TM) "));
175 display.println(F(" Battery Monitor "));
176 display.write(201);
177 for(int i=0;i<19;i++)
178 display.write(205);
179 display.write(187);
180 display.println(F(""));
181 display.write(186);
182 display.print(F(" D1=3.185 D2=3.176 "));
183 display.write(186);
184 display.println(F(""));
185 display.write(186);
186 display.print(F(" D3=3.176 D4=3.175 "));
187 display.write(186);
188 display.println(F(""));
189 display.write(186);
190 display.print(F(" D5=3.174 D6=3.173 "));
191 display.write(186);
192 display.println(F(""));
193 display.write(186);
194 display.print(F(" D7=3.183 D8=3.188 "));
195 display.write(186);
196 display.println(F(""));
197 display.write(200);
198 for(int i=0;i<19;i++)
199 display.write(205);
200 display.write(188);
201
202
203 display.display();
204 delay(4000);
205 display.invertDisplay(true);
206 delay(500);
207 display.invertDisplay(false);
208 display.clearDisplay();
209 delay(500);
210
211
212 display.setCursor(0,0); // Start at top-left corner
213 display.println(F(" CoolShit (TM) "));
214 display.println(F(" Battery Monitor "));
215 display.write(201);
216 for(int i=0;i<19;i++)
217 display.write(205);
218 display.write(187);
219 display.println(F(""));
220 display.write(186);
221 display.print(F(" E1=3.222 E2=3.221 "));
222 display.write(186);
223 display.println(F(""));
224 display.write(186);
225 display.print(F(" E3=3.224 E4=3.214 "));
226 display.write(186);
227 display.println(F(""));
228 display.write(186);
229 display.print(F(" E5=3.223 E6=3.224 "));
230 display.write(186);
231 display.println(F(""));
232 display.write(186);
233 display.print(F(" E7=3.233 E8=3.223 "));
234 display.write(186);
235 display.println(F(""));
236 display.write(200);
237 for(int i=0;i<19;i++)
238 display.write(205);
239 display.write(188);
240
241
242 display.display();
243 delay(4000);
244 display.invertDisplay(true);
245 delay(500);
246 display.invertDisplay(false);
247 display.clearDisplay();
248 delay(500);
249
250
251 }
252 }
