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プログラムの内容を<code>を使っていれるようにしました。

2019/09/24 11:10

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yama286

スコア34

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@@ -14,6 +14,8 @@
 DS18B20a.pyがLCDに表示できません
 2019.9.23
 yama286です
@@ -30,7 +32,9 @@
 　　以上はRaspberry Pi Beginner Kitで購入したものです
-1.	不具合内容
+**1.	不具合内容**
 後述のサンプルプログラムDS18B20a.pyをターミナルで動作させると、ターミナルには測定結果が出ますが、標準開発環境Thonny Python IDEではエラーになります。
@@ -44,11 +48,15 @@
-2. DS18B20単独動作確認
+**2. DS18B20単独動作確認**
 　　連続温度測定は下記リスト(webより入手)で確認済みです。
-*********************************************************************
+```ここに言語を入力
 #/usr/bin/ruby
@@ -92,231 +100,243 @@
 main()
+```**実行結果**
+　　時刻と温度がパソコン画面に表示されます。この結果は正常です。
+**3.LCD:12 LCD Display単独動作確認**
+動作は下記リスト(webより入手)で確認済みです。
+```ここに言語を入力
+import smbus
+import time
+# Define some device parameters
+I2C_ADDR  = 0x27 # I2C device address, if any error, change this address to 0x27
+LCD_WIDTH = 16   # Maximum characters per line
+# Define some device constants
+LCD_CHR = 1 # Mode - Sending data
+LCD_CMD = 0 # Mode - Sending command
+LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
+LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
+LCD_LINE_3 = 0x94 # LCD RAM address for the 3rd line
+LCD_LINE_4 = 0xD4 # LCD RAM address for the 4th line
+LCD_BACKLIGHT  = 0x08  # On
+#LCD_BACKLIGHT = 0x00  # Off
+ENABLE = 0b00000100 # Enable bit
+# Timing constants
+E_PULSE = 0.0005
+E_DELAY = 0.0005
+#Open I2C interface
+#bus = smbus.SMBus(0)  # Rev 1 Pi uses 0
+bus = smbus.SMBus(1) # Rev 2 Pi uses 1
+def lcd_init():
+ # Initialise display
+ lcd_byte(0x33,LCD_CMD) # 110011 Initialise
+ lcd_byte(0x32,LCD_CMD) # 110010 Initialise
+ lcd_byte(0x06,LCD_CMD) # 000110 Cursor move direction
+ lcd_byte(0x0C,LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
+ lcd_byte(0x28,LCD_CMD) # 101000 Data length, number of lines, font size
+ lcd_byte(0x01,LCD_CMD) # 000001 Clear display
+ time.sleep(E_DELAY)
+def lcd_byte(bits, mode):
+ # Send byte to data pins
+ # bits = the data
+ # mode = 1 for data
+ #        0 for command
+ bits_high = mode | (bits & 0xF0) | LCD_BACKLIGHT
+ bits_low = mode | ((bits<<4) & 0xF0) | LCD_BACKLIGHT
+ # High bits
+ bus.write_byte(I2C_ADDR, bits_high)
+ lcd_toggle_enable(bits_high)
+ # Low bits
+ bus.write_byte(I2C_ADDR, bits_low)
+ lcd_toggle_enable(bits_low)
+def lcd_toggle_enable(bits):
+ # Toggle enable
+ time.sleep(E_DELAY)
+ bus.write_byte(I2C_ADDR, (bits | ENABLE))
+ time.sleep(E_PULSE)
+ bus.write_byte(I2C_ADDR,(bits & ~ENABLE))
+ time.sleep(E_DELAY)
+def lcd_string(message,line):
+ # Send string to display
+ message = message.ljust(LCD_WIDTH," ")
+ lcd_byte(line, LCD_CMD)
+ for i in range(LCD_WIDTH):
+   lcd_byte(ord(message[i]),LCD_CHR)
+def main():
+ # Main program block
+ # Initialise display
+ lcd_init()
+ while True:
+   # Send some test
+   lcd_string("Created by         <",LCD_LINE_1)
+   lcd_string("Osoyoo.com        <",LCD_LINE_2)
+time.sleep(3) # Send some more text
+lcd_string("> Tutorial Url:",LCD_LINE_1)
+   lcd_string("> http://osoyoo.com",LCD_LINE_2)
+   time.sleep(3)
+if __name__ == '__main__':
+ try:
+   main()
+ except KeyboardInterrupt:
+   pass
+ finally:
+   lcd_byte(0x01, LCD_CMD)
+```
 **実行結果**
-　　時刻と温度がパソコン画面に表示されます。
-3.LCD:12 LCD Display単独動作確認
-動作は下記リスト(webより入手)で確認済みです。
-********************************************************************************
-import smbus
-import time
-# Define some device parameters
-I2C_ADDR  = 0x27 # I2C device address, if any error, change this address to 0x27
-LCD_WIDTH = 16   # Maximum characters per line
-# Define some device constants
-LCD_CHR = 1 # Mode - Sending data
-LCD_CMD = 0 # Mode - Sending command
-LCD_LINE_1 = 0x80 # LCD RAM address for the 1st line
-LCD_LINE_2 = 0xC0 # LCD RAM address for the 2nd line
-LCD_LINE_3 = 0x94 # LCD RAM address for the 3rd line
-LCD_LINE_4 = 0xD4 # LCD RAM address for the 4th line
-LCD_BACKLIGHT  = 0x08  # On
-#LCD_BACKLIGHT = 0x00  # Off
-ENABLE = 0b00000100 # Enable bit
-# Timing constants
-E_PULSE = 0.0005
-E_DELAY = 0.0005
-#Open I2C interface
-#bus = smbus.SMBus(0)  # Rev 1 Pi uses 0
-bus = smbus.SMBus(1) # Rev 2 Pi uses 1
-def lcd_init():
- # Initialise display
- lcd_byte(0x33,LCD_CMD) # 110011 Initialise
- lcd_byte(0x32,LCD_CMD) # 110010 Initialise
- lcd_byte(0x06,LCD_CMD) # 000110 Cursor move direction
- lcd_byte(0x0C,LCD_CMD) # 001100 Display On,Cursor Off, Blink Off
- lcd_byte(0x28,LCD_CMD) # 101000 Data length, number of lines, font size
- lcd_byte(0x01,LCD_CMD) # 000001 Clear display
- time.sleep(E_DELAY)
-def lcd_byte(bits, mode):
- # Send byte to data pins
- # bits = the data
- # mode = 1 for data
- #        0 for command
- bits_high = mode | (bits & 0xF0) | LCD_BACKLIGHT
- bits_low = mode | ((bits<<4) & 0xF0) | LCD_BACKLIGHT
- # High bits
- bus.write_byte(I2C_ADDR, bits_high)
- lcd_toggle_enable(bits_high)
- # Low bits
- bus.write_byte(I2C_ADDR, bits_low)
- lcd_toggle_enable(bits_low)
-def lcd_toggle_enable(bits):
- # Toggle enable
- time.sleep(E_DELAY)
- bus.write_byte(I2C_ADDR, (bits | ENABLE))
- time.sleep(E_PULSE)
- bus.write_byte(I2C_ADDR,(bits & ~ENABLE))
- time.sleep(E_DELAY)
-def lcd_string(message,line):
- # Send string to display
- message = message.ljust(LCD_WIDTH," ")
- lcd_byte(line, LCD_CMD)
- for i in range(LCD_WIDTH):
-   lcd_byte(ord(message[i]),LCD_CHR)
-def main():
- # Main program block
- # Initialise display
- lcd_init()
- while True:
-   # Send some test
-   lcd_string("Created by         <",LCD_LINE_1)
-   lcd_string("Osoyoo.com        <",LCD_LINE_2)
-time.sleep(3) # Send some more text
-lcd_string("> Tutorial Url:",LCD_LINE_1)
-   lcd_string("> http://osoyoo.com",LCD_LINE_2)
-   time.sleep(3)
-if __name__ == '__main__':
- try:
-   main()
- except KeyboardInterrupt:
-   pass
- finally:
-   lcd_byte(0x01, LCD_CMD)
-**実行結果**
-LCDに“Created by         <”　　と　　"> Tutorial Url:"
+　　LCDに“Created by         <”　　と　　   "> Tutorial Url:"
-"Osoyoo.com        <"　　　　　　　"> http://osoyoo.com"
+　　　　 "Osoyoo.com        <"　　　　　　　"> http://osoyoo.com"
 　　が交互に表示されます。
+   これも正常表示です。
-4. DS18B20の測定データをLCD:12 LCD Displayに表示させたい
+**4. DS18B20の測定データをLCD:12 LCD Displayに表示させたい**
 1)参考資料　https://www.denshi.club/pc/raspi/5raspberry-pi-zeroiot161.html
@@ -334,7 +354,7 @@
 　正しく認識されています。(DS18B20は1-wireのためアドレスは出ません)
-3)プログラム作成　　1.参考資料参照ください
+3)プログラム作成　　1)参考資料urlのプログラム参照ください
 　　この資料の“プログラム”にある47ステップをコーディングしました。