LK-Digi: Unterschied zwischen den Versionen

Aus Linkerkit.de

Wechseln zu: Navigation, Suche
(Downloads)
(Codebeispiel Raspberry)
Zeile 15: Zeile 15:
 
   
 
   
 
==Codebeispiel Raspberry==
 
==Codebeispiel Raspberry==
   
+
 
 +
Legen Sie zuerst die Datei '''tm1637.py''' über ein Terminal an.
 +
Sie können dazu folgenden Befehl verwenden:
 +
 
 +
<pre class="brush:bash">sudo nano tm1637.py</pre>
 +
 
 +
Füllen Sie die Datei mit folgendem Inhalt:
 +
 
 +
<pre class="brush:py">
 +
 
 +
import sys
 +
import os
 +
import time
 +
import RPi.GPIO as IO
 +
 
 +
IO.setwarnings(False)
 +
IO.setmode(IO.BCM)
 +
 
 +
HexDigits = [0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71]
 +
 
 +
ADDR_AUTO = 0x40
 +
ADDR_FIXED = 0x44
 +
STARTADDR = 0xC0
 +
BRIGHT_DARKEST = 0
 +
BRIGHT_TYPICAL = 2
 +
BRIGHT_HIGHEST = 7
 +
OUTPUT = IO.OUT
 +
INPUT = IO.IN
 +
LOW = IO.LOW
 +
HIGH = IO.HIGH
 +
 
 +
class TM1637:
 +
__doublePoint = False
 +
__Clkpin = 0
 +
__Datapin = 0
 +
__brightnes = BRIGHT_TYPICAL;
 +
__currentData = [0,0,0,0];
 +
 
 +
def __init__( self, pinClock, pinData, brightnes ):
 +
self.__Clkpin = pinClock
 +
self.__Datapin = pinData
 +
self.__brightnes = brightnes;
 +
IO.setup(self.__Clkpin,OUTPUT)
 +
IO.setup(self.__Datapin,OUTPUT)
 +
# end __init__
 +
 
 +
def Clear(self):
 +
b = self.__brightnes;
 +
point = self.__doublePoint;
 +
self.__brightnes = 0;
 +
self.__doublePoint = False;
 +
data = [0x7F,0x7F,0x7F,0x7F];
 +
self.Show(data);
 +
self.__brightnes = b; # restore saved brightnes
 +
self.__doublePoint = point;
 +
# end  Clear
 +
 
 +
def ShowInt(self, i):
 +
s = str(i)
 +
self.Clear()
 +
for i in range(0,len(s)):
 +
self.Show1(i, int(s[i]))
 +
 
 +
def Show( self, data ):
 +
for i in range(0,4):
 +
self.__currentData[i] = data[i];
 +
 
 +
self.start();
 +
self.writeByte(ADDR_AUTO);
 +
self.stop();
 +
self.start();
 +
self.writeByte(STARTADDR);
 +
for i in range(0,4):
 +
self.writeByte(self.coding(data[i]));
 +
self.stop();
 +
self.start();
 +
self.writeByte(0x88 + self.__brightnes);
 +
self.stop();
 +
# end  Show
 +
 
 +
def SetBrightnes(self, brightnes): # brightnes 0...7
 +
if( brightnes > 7 ):
 +
brightnes = 7;
 +
elif( brightnes < 0 ):
 +
brightnes = 0;
 +
 
 +
if( self.__brightnes != brightnes):
 +
self.__brightnes = brightnes;
 +
self.Show(self.__currentData);
 +
# end if
 +
# end  SetBrightnes
 +
 
 +
def ShowDoublepoint(self, on): # shows or hides the doublepoint
 +
if( self.__doublePoint != on):
 +
self.__doublePoint = on;
 +
self.Show(self.__currentData);
 +
# end if
 +
# end  ShowDoublepoint
 +
 
 +
def writeByte( self, data ):
 +
for i in range(0,8):
 +
IO.output( self.__Clkpin, LOW)
 +
if(data & 0x01):
 +
IO.output( self.__Datapin, HIGH)
 +
else:
 +
IO.output( self.__Datapin, LOW)
 +
data = data >> 1
 +
IO.output( self.__Clkpin, HIGH)
 +
#endfor
 +
 
 +
# wait for ACK
 +
IO.output( self.__Clkpin, LOW)
 +
IO.output( self.__Datapin, HIGH)
 +
IO.output( self.__Clkpin, HIGH)
 +
IO.setup(self.__Datapin, INPUT)
 +
 
 +
while(IO.input(self.__Datapin)):
 +
time.sleep(0.001)
 +
if( IO.input(self.__Datapin)):
 +
IO.setup(self.__Datapin, OUTPUT)
 +
IO.output( self.__Datapin, LOW)
 +
IO.setup(self.__Datapin, INPUT)
 +
#endif
 +
# endwhile
 +
IO.setup(self.__Datapin, OUTPUT)
 +
# end writeByte
 +
 
 +
def start(self):
 +
IO.output( self.__Clkpin, HIGH) # send start signal to TM1637
 +
IO.output( self.__Datapin, HIGH)
 +
IO.output( self.__Datapin, LOW)
 +
IO.output( self.__Clkpin, LOW)
 +
# end start
 +
 
 +
def stop(self):
 +
IO.output( self.__Clkpin, LOW)
 +
IO.output( self.__Datapin, LOW)
 +
IO.output( self.__Clkpin, HIGH)
 +
IO.output( self.__Datapin, HIGH)
 +
# end stop
 +
 
 +
def coding(self, data):
 +
if( self.__doublePoint ):
 +
pointData = 0x80
 +
else:
 +
pointData = 0;
 +
 
 +
if(data == 0x7F):
 +
data = 0
 +
else:
 +
data = HexDigits[data] + pointData;
 +
return data
 +
# end coding
 +
 
 +
# end class TM1637
 +
</pre>
 +
 
 +
Erstellen Sie nun mit folgendem Befehl die letzte Datei:
 +
 
 +
<pre class="brush:bash">sudo nano clock.py</pre>
 +
 
 +
Füllen Sie die Datei mit folgendem Inhalt:
 +
 
 +
<pre class="brush:py">
 +
 
 +
import sys
 +
import time
 +
import datetime
 +
import RPi.GPIO as GPIO
 +
import tm1637
 +
 
 +
Display = tm1637.TM1637(4,5,tm1637.BRIGHT_TYPICAL)
 +
 
 +
Display.Clear()
 +
Display.SetBrightnes(1)
 +
 
 +
while(True):
 +
  now = datetime.datetime.now()
 +
  hour = now.hour
 +
  minute = now.minute
 +
  second = now.second
 +
  currenttime = [ int(hour / 10), hour % 10, int(minute / 10), minute % 10 ]
 +
 
 +
  Display.Show(currenttime)
 +
  Display.ShowDoublepoint(second % 2)
 +
 
 +
  time.sleep(1)
 +
</pre>
 +
 
 +
Die Anzeige kann nun an das LinkerKit-Modul (in diesem Beispiel an Position D4) angeschlossen werden und mit folgendem Befehl gestartet werden:
 +
 
 +
<pre class="brush:bash">sudo python clock.py</pre>
 +
 
 +
Die Anzeige wird nun die aktuelle Systemzeit einblenden.
 +
 
 
==Downloads==
 
==Downloads==
 
Infos:<br />Englisch: [[Medium:001267841-da-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf|001267841-da-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf]]
 
Infos:<br />Englisch: [[Medium:001267841-da-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf|001267841-da-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf]]
  
 
Schaltung: [[Medium:001267841-sp-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf|001267841-sp-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf]]
 
Schaltung: [[Medium:001267841-sp-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf|001267841-sp-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf]]

Version vom 30. November 2016, 15:51 Uhr

Bild

LK-Digi.jpg

Technische Daten / Kurzbeschreibung

Linker Kit Platine mit einer Digitalanzeige 4 Stellen und 7 Segmente
Dieses Modul verwendet einen TM1637 Chipsatz.
Der MCU benötigt nur 2 GPIO Anschlüsse um gesteuert zu werden.

Spezifikation

Maße: 46,2 × 24,3 × 14.5mm
Gewicht: 7g

Codebeispiel Arduino

 

Codebeispiel Raspberry

Legen Sie zuerst die Datei tm1637.py über ein Terminal an. Sie können dazu folgenden Befehl verwenden:

sudo nano tm1637.py

Füllen Sie die Datei mit folgendem Inhalt:


import sys
import os
import time
import RPi.GPIO as IO

IO.setwarnings(False)
IO.setmode(IO.BCM)

HexDigits = [0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71]

ADDR_AUTO = 0x40
ADDR_FIXED = 0x44
STARTADDR = 0xC0
BRIGHT_DARKEST = 0
BRIGHT_TYPICAL = 2
BRIGHT_HIGHEST = 7
OUTPUT = IO.OUT
INPUT = IO.IN
LOW = IO.LOW
HIGH = IO.HIGH

class TM1637:
	__doublePoint = False
	__Clkpin = 0
	__Datapin = 0
	__brightnes = BRIGHT_TYPICAL;
	__currentData = [0,0,0,0];

	def __init__( self, pinClock, pinData, brightnes ):
		self.__Clkpin = pinClock
		self.__Datapin = pinData
		self.__brightnes = brightnes;
		IO.setup(self.__Clkpin,OUTPUT)
		IO.setup(self.__Datapin,OUTPUT)
	# end  __init__

	def Clear(self):
		b = self.__brightnes;
		point = self.__doublePoint;
		self.__brightnes = 0;
		self.__doublePoint = False;
		data = [0x7F,0x7F,0x7F,0x7F];
		self.Show(data);
		self.__brightnes = b;				# restore saved brightnes
		self.__doublePoint = point;
	# end  Clear

	def ShowInt(self, i):
		s = str(i)
		self.Clear()
		for i in range(0,len(s)):
			self.Show1(i, int(s[i]))

	def Show( self, data ):
		for i in range(0,4):
			self.__currentData[i] = data[i];

		self.start();
		self.writeByte(ADDR_AUTO);
		self.stop();
		self.start();
		self.writeByte(STARTADDR);
		for i in range(0,4):
			self.writeByte(self.coding(data[i]));
		self.stop();
		self.start();
		self.writeByte(0x88 + self.__brightnes);
		self.stop();
	# end  Show

	def SetBrightnes(self, brightnes):		# brightnes 0...7
		if( brightnes > 7 ):
			brightnes = 7;
		elif( brightnes < 0 ):
			brightnes = 0;

		if( self.__brightnes != brightnes):
			self.__brightnes = brightnes;
			self.Show(self.__currentData);
		# end if
	# end  SetBrightnes

	def ShowDoublepoint(self, on):			# shows or hides the doublepoint
		if( self.__doublePoint != on):
			self.__doublePoint = on;
			self.Show(self.__currentData);
		# end if
	# end  ShowDoublepoint

	def writeByte( self, data ):
		for i in range(0,8):
			IO.output( self.__Clkpin, LOW)
			if(data & 0x01):
				IO.output( self.__Datapin, HIGH)
			else:
				IO.output( self.__Datapin, LOW)
			data = data >> 1
			IO.output( self.__Clkpin, HIGH)
		#endfor

		# wait for ACK
		IO.output( self.__Clkpin, LOW)
		IO.output( self.__Datapin, HIGH)
		IO.output( self.__Clkpin, HIGH)
		IO.setup(self.__Datapin, INPUT)

		while(IO.input(self.__Datapin)):
			time.sleep(0.001)
			if( IO.input(self.__Datapin)):
				IO.setup(self.__Datapin, OUTPUT)
				IO.output( self.__Datapin, LOW)
				IO.setup(self.__Datapin, INPUT)
			#endif
		# endwhile
		IO.setup(self.__Datapin, OUTPUT)
	# end writeByte

	def start(self):
		IO.output( self.__Clkpin, HIGH) # send start signal to TM1637
		IO.output( self.__Datapin, HIGH)
		IO.output( self.__Datapin, LOW)
		IO.output( self.__Clkpin, LOW)
	# end start

	def stop(self):
		IO.output( self.__Clkpin, LOW)
		IO.output( self.__Datapin, LOW)
		IO.output( self.__Clkpin, HIGH)
		IO.output( self.__Datapin, HIGH)
	# end stop

	def coding(self, data):
		if( self.__doublePoint ):
			pointData = 0x80
		else:
			pointData = 0;

		if(data == 0x7F):
			data = 0
		else:
			data = HexDigits[data] + pointData;
		return data
	# end coding

# end class TM1637

Erstellen Sie nun mit folgendem Befehl die letzte Datei:

sudo nano clock.py

Füllen Sie die Datei mit folgendem Inhalt:


import sys
import time
import datetime
import RPi.GPIO as GPIO
import tm1637

Display = tm1637.TM1637(4,5,tm1637.BRIGHT_TYPICAL)

Display.Clear()
Display.SetBrightnes(1)

while(True):
   now = datetime.datetime.now()
   hour = now.hour
   minute = now.minute
   second = now.second
   currenttime = [ int(hour / 10), hour % 10, int(minute / 10), minute % 10 ]

   Display.Show(currenttime)
   Display.ShowDoublepoint(second % 2)

   time.sleep(1)

Die Anzeige kann nun an das LinkerKit-Modul (in diesem Beispiel an Position D4) angeschlossen werden und mit folgendem Befehl gestartet werden:

sudo python clock.py

Die Anzeige wird nun die aktuelle Systemzeit einblenden.

Downloads

Infos:
Englisch: 001267841-da-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf

Schaltung: 001267841-sp-01-en-LINKER_KIT_PLATINE_MIT_DIGITALANZEIGE.pdf