rik/tm1638-library
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added support for removing leading zeros in displaying numbers

Browse Source
This commit is contained in:
rjbatista@gmail.com
2011-10-19 23:43:58 +00:00
parent 1716fddf4a
commit e3075c02e2
3 changed files with 39 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
TM1638.cpp
View File

@@ -51,15 +51,19 @@ void TM1638::setupDisplay(boolean active, byte intensity)
}
void TM1638::setDisplayToHexNumber(unsigned long number, byte dots)
void TM1638::setDisplayToHexNumber(unsigned long number, byte dots, boolean leadingZeros)
{
for (int i = 0; i < 8; i++) {
setDisplayDigit(number & 0xF, 7 - i, (dots & (1 << i)) != 0);
number >>= 4;
if (!leadingZeros && number == 0) {
clearDisplayDigit(7 - i, (dots & (1 << i)) != 0);
} else {
setDisplayDigit(number & 0xF, 7 - i, (dots & (1 << i)) != 0);
number >>= 4;
}
}
}
void TM1638::setDisplayToDecNumber(unsigned long number, byte dots)
void TM1638::setDisplayToDecNumber(unsigned long number, byte dots, boolean leadingZeros)
{
if (number > 99999999L) {
setDisplay(ERROR);
@@ -69,7 +73,11 @@ void TM1638::setDisplayToDecNumber(unsigned long number, byte dots)
setDisplayDigit(number % 10, 7 - i, (dots & (1 << i)) != 0);
number /= 10;
} else {
setDisplayDigit(0, 7 - i, (dots & (1 << i)) != 0);
if (leadingZeros) {
setDisplayDigit(0, 7 - i, (dots & (1 << i)) != 0);
} else {
clearDisplayDigit(7 - i, (dots & (1 << i)) != 0);
}
}
}
}
@@ -87,6 +95,11 @@ void TM1638::setDisplayDigit(byte digit, byte pos, boolean dot)
sendData(pos << 1, NUMBER_DATA[digit & 0xF] | (dot ? 0b10000000 : 0));
}
void TM1638::clearDisplayDigit(byte pos, boolean dot)
{
sendData(pos << 1, (dot ? 0b10000000 : 0));
}
void TM1638::setDisplay(const byte values[])
{
for (int i = 0; i < 8; i++) {