Arduino tutorial on driving the MAX7219 7-segment 8-digit LED module
Arduino code: http://hastebin.com/axovofapag.coffee
Arduino code: http://hastebin.com/axovofapag.coffee
By Julian
Youtuber, shed dweller, solar charge controller aficionado
I tried everything,still my display is not working
Hi Everyone
With following methods (functions) you can attach two 7219 modules
output1 will send data to the first one and outout 2 will send it the second one,
rest is the same as Julian has written.
void output1(byte address, byte data)
{
digitalWrite(MAX7219_CS, LOW);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, 0);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, 0);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, address);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, data);
digitalWrite(MAX7219_CS, HIGH);
}
void output2(byte address, byte data)
{
digitalWrite(MAX7219_CS, LOW);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, address);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, data);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, 0);
shiftOut(MAX7219_DIN, MAX7219_CLK, MSBFIRST, 0);
digitalWrite(MAX7219_CS, HIGH);
}
Would you have to shut it down prior to cutting the power?
unable to view the code sir.. could you check that
The Arduino code URL isn't working
I'm a complete beginner, but I need to sort a days, hours, minutes seconds countdown display for a pullover. any suggestions?
how to display floating data on 8 digit based seven segment module.
Excellent tutorial. How you proceeded and solve the issues one by one. Just amazing
Excellent, this is the best tutorial in web. congratulations
WOW! I cannot believe how easy this was to understand, I am a complete utter NOOB but I followed this easily. Thank you Julian! I really think I'll be able to get my project done now.
I have found this tutorial to be invaluable! Many thanks! I just need to do a little bit more work, as I'm not using the MAX7219 with Arduino 😀
Amazing tutorial I understand erverything 😉
how to activate point after a digit? please tell me the code.
What is all the programming for. If I wanted to connect to FSX do I need to do the coding and If so what would it be. Help please
Hi Julian! It's been a long time since I haven't come to see your tutorials. I'm back. I missed your teachings.
Great tutorial. Thanks!!!