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textstar.py
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128 lines (119 loc) · 4.19 KB
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import serial
import struct
import time
from textstarsim import TextStarSim
#port = serial.Serial('/dev/ttyS0')
#outputStr = struct.pack('BBB',0xaa,6,255)
#port.write(outputStr)
#port.close()
CURSORSTYLE_NO = 0
CURSORSTYLE_SOLID = 1
CURSORSTYLE_FLASH_BLOCK = 2
CURSORSTYLE_SOLID_UL = 3
CURSORSTYLE_FLASH_UL = 4
def write(data):
print hexdump(data,16)
def hexdump(src, length=8):
result = []
digits = 4 if isinstance(src, unicode) else 2
for i in xrange(0, len(src), length):
s = src[i:i+length]
hexa = b' '.join(["%0*X" % (digits, ord(x)) for x in s])
text = b''.join([x if 0x20 <= ord(x) < 0x7F else b'.' for x in s])
result.append( b"%04X %-*s %s" % (i, length*(digits + 1), hexa, text) )
return b'\n'.join(result)
def limit(value,min,max):
if value > max:
value = max
if value < min:
value = min
return value
class TextStar:
def __init__(self,port,baud,quiet=0):
##Initialise Serial Port Here
self.port = serial.Serial(port, baud,timeout=1)
self.quiet = quiet
print "Serial Port:", port, "\nBaud Rate:", baud
def write(self,data):
if (not self.quiet):
write(data)
self.port.write(data)
def read(self,format=''):
if format == 'hex':
print "Echo:\n", hexdump(self.port.read(self.port.inWaiting()),16)
else:
return self.port.read(self.port.inWaiting())
def CursorLeft(self):
self.write(struct.pack('B',8))
def CursorForward(self):
self.write(struct.pack('B',9))
def CursorDown(self):
self.write(struct.pack('B',10))
def CursorUp(self):
self.write(struct.pack('B',11))
def Clear(self):
self.write(struct.pack('B',12))
def CarriageReturn(self):
self.write(struct.pack('B',13))
def Delete(self):
self.write(struct.pack('B',127))
def UncappedBarGraph(self,width,percent):
self.write(struct.pack('BBBB',254,66,int(width),int(limit(percent,0,100))))
def CursorStyle(self,style):
self.write(struct.pack('BBB',254,67,int(style)))
def DefineCustomCharacter(self,ch,b1,b2,b3,b4,b5,b6,b7,b8):
self.write(struct.pack('BBBBBBBBBBB',254,68,ch,b1,b2,b3,b4,b5,b6,b7,b8))
def GoToLine(self,line):
self.write(struct.pack('BBB',254,71,int(line)))
def CursorHome(self):
self.write(struct.pack('BB',254,72))
def SendKeyStates(self):
self.write(struct.pack('BB',254,75))
def MoveToLineStart(self):
self.write(struct.pack('BB',254,76))
def ScrollWindow(self,dir):
self.write(struct.pack('BBB',254,79,int(dir)))
def PositionCursor(self,l,c):
self.write(struct.pack('BBBB',254,80,int(l),int(c)))
def ResetScreen(self):
self.write(struct.pack('BB',254,83))
def ClearScreen(self):
self.write(struct.pack('BB',254,83))
def VersionDisplay(self):
self.write(struct.pack('BB',254,86))
def CappedBarGraph(self,width,percent):
self.write(struct.pack('BBBB',254,98,int(width),int(limit(percent,0,100))))
def DefineKeys(self,key_no,code):
self.write(struct.pack('BBBB',254,107,int(key_no),int(code)))
def SendVersion(self):
self.write(struct.pack('BB',254,118))
def LevelIndicator(self,line,label,percent):
self.GoToLine(line)
self.write(centre_text(label,16))
self.GoToLine(line+1)
self.CappedBarGraph(16,percent)
def centre_text(text,size):
text = text.center(size)
return text
if __name__ == "__main__":
ts = TextStar("/dev/ttyUSB0",115200)
tss=TextStarSim()
ts.write("Hi\r\n")
ts.CursorLeft()
ts.UncappedBarGraph(0x31,0xaa)
ts.DefineCustomCharacter(1,0x31,101,102,103,104,105,106,107)
ts.ScrollWindow(1)
tss.print_screen()
ts.LevelIndicator(0,"Battery",50)
ts.LevelIndicator(2,"Fuel",25)
ts.LevelIndicator(4,"Oxygen",90)
time.sleep(1)
rx = ts.read()
tss.write(rx)
tss.print_screen()
ts.ScrollWindow(1)
ts.ScrollWindow(1)
time.sleep(1)
rx = ts.read()
tss.write(rx)
tss.print_screen()