質問編集履歴
1
OLEDディスプレイに表示される文字がeと出ます
test
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File without changes
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test
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@@ -1,4 +1,232 @@
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```#include <Wire.h>
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#define OLED_ADRS 0x3C //SA0=L(SA0=H の場合は 0x3D)
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int DisplayON = 0x0F,
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ClearDisplay = 0x01,
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ReturnHome = 0x02;
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10
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int DS1307_ADDRESS=0x68;
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int val=0;
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byte command;
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void setup() {
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Wire.begin(); //Wire ﾗｲﾌﾞﾗﾘを初期化し、I2C ﾏｽﾀとしてﾊﾞｽに接続
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init_oled();
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printTime();
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setDay();
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setTime();
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}
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void loop() {
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writeData(r_sec);
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writeCommand(0x20+0x80); //2 行目の先頭
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contrast_max(); //輝度を最大に設定
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while(1){}
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}
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//----main end----
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void writeData(byte t_data)
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{
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Wire.beginTransmission(OLED_ADRS);
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Wire.write(0x40);
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Wire.write(t_data);
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Wire.endTransmission();
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delay(1);
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}
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void writeCommand(byte t_command)
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{
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Wire.beginTransmission(OLED_ADRS);
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Wire.write(0x00);
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Wire.write(t_command);
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Wire.endTransmission();
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delay(10);
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}
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void contrast_max(){
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writeCommand(0x2a);//RE=1
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writeCommand(0x79);//SD=1
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writeCommand(0x81);//コントラストセット
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writeCommand(0xFF);//輝度ＭＡＸ
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writeCommand(0x78);//SD を０にもどす
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writeCommand(0x28); //2C=高文字 28=ノーマル
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delay(100);
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}
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void setTime(){
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byte hour=(Serial.read()<<4);
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hour=hour+(Serial.read()&0x0F);
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byte minute=(Serial.read()<<4);
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minute=minute+(Serial.read()&0x0F);
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byte sec=(Serial.read()<<4);
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sec=sec+(Serial.read()&0x0F);
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Wire.beginTransmission(DS1307_ADDRESS);
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Wire.write(val);
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Wire.write(sec);
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Wire.write(minute);
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Wire.write(hour);
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Wire.endTransmission();
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}
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void setDay(){
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byte year=(Serial.read()<<4);
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year=year+(Serial.read()&0x0F);
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byte month=(Serial.read()<<4);
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month=month+(Serial.read()&0x0F);
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byte day=(Serial.read()<<4);
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day=day+(Serial.read()&0x0F);
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byte day_of_week=(Serial.read()&0x0F);
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Wire.beginTransmission(DS1307_ADDRESS);
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Wire.write(0x03);
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Wire.write(day_of_week);
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Wire.write(day);
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Wire.write(month);
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Wire.write(year);
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Wire.endTransmission();
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}
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void printTime(){
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Wire.beginTransmission(DS1307_ADDRESS);
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Wire.write(val);
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Wire.endTransmission();
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Wire.requestFrom(DS1307_ADDRESS,7);
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byte r_sec=Wire.read();
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byte r_minute=Wire.read();
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byte r_hour=Wire.read();
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byte r_day_of_week=Wire.read();
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byte r_date=Wire.read();
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byte r_month=Wire.read();
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byte r_year=Wire.read();
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}
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void init_oled()
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{
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delay(100);
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writeCommand(ClearDisplay); // Clear Display
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delay(20);
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writeCommand(ReturnHome); // ReturnHome
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delay(2);
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writeCommand(DisplayON); // Send Display on command
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delay(2);
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writeCommand(ClearDisplay); // Clear Display
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delay(20);
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}
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コード
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228
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1
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-
RTC(DS1307)とOLEDディスプレイ(so1602aｗ)のコードを参考にしてr_secを表示するコードを作ってみたのですがうまくいきません。
|
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229
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+
```RTC(DS1307)とOLEDディスプレイ(so1602aｗ)のコードを参考にしてr_secを表示するコードを作ってみたのですがうまくいきません。
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230
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3
231
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何が間違っていますか？
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4
232
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