回答編集履歴
5
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@@ -16,7 +16,7 @@
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```
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The Compilar will casts all values into 2 bytes or 4 bytes integer when compare it with a numeric value.
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-
However, 'char' allows only -128 to 127 and could not
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However, 'char' allows only -128 to 127 and could not contains 0xE3 that means 227.
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###### More information:
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4
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answer
CHANGED
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@@ -16,7 +16,7 @@
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```
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The Compilar will casts all values into 2 bytes or 4 bytes integer when compare it with a numeric value.
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However, 'char' allows only -
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+
However, 'char' allows only -128 to 127 and could not contain 0xE3 that means 227.
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###### More information:
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3
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answer
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@@ -1,4 +1,4 @@
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1
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I think that you may use 'unsigned char'
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I think that you may use 'unsigned char' instead of 'char'.
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2
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```Arduino
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unsigned char dat[5]; //送信された文字を受け取る配列
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2
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@@ -22,7 +22,7 @@
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> dat[0] == 'FFFFFFE3'
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This means that comparing pointers. I think it will not be muched if dat[0] has same value as 'FFFFFFE3'.
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This means that comparing their pointers. I think it will not be muched if dat[0] has same value as 'FFFFFFE3'.
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###### Addition: Size of int.
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1
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answer
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@@ -15,7 +15,7 @@
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}
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```
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-
The Compilar will casts all values into 2 bytes or 4 bytes integer when compare it with numeric value.
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18
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+
The Compilar will casts all values into 2 bytes or 4 bytes integer when compare it with a numeric value.
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However, 'char' allows only -127 to 127 and could not contain 0xE3 that means 227.
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###### More information:
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