First of all i´m not native English so don´t judge my grammar please. Second i´m fairly new to all this Electronic Stuff and i really want to get into this kind of stuff after this build.
So, i am trying to build a Altair 8800 with the help of an Arduino Mega 2560 [Arduino Project Hub]
I took a look into the Shematics [https://goo.gl/bQXNx3] and think that i can do all of it the only question i am asking myself how can i provide power to the switches and LED´s if there are only 5 x 5V Pins i saw that picture of the inside [https://goo.gl/8kcozH] and asked myself how did he do that ? i have some ideas but they don´t seem right. Is there any help available? Thanks very much.
First of all i´m not native English so don´t judge my grammar please. Second i´m fairly new to all this Electronic Stuff and i really want to get into this kind of stuff after this build.
So, i am trying to build a Altair 8800 with the help of an Arduino Mega 2560 [Arduino Project Hub]
I took a look into the Shematics [https://goo.gl/bQXNx3] and think that i can do all of it the only question i am asking myself how can i provide power to the switches and LED´s if there are only 5 x 5V Pins i saw that picture of the inside [https://goo.gl/8kcozH] and asked myself how did he do that ? i have some ideas but they don´t seem right. Is there any help available? Thanks very much.
Your English writing is just fine! And welcome to the Arduino forum.
The 5 volts to the LEDs is probably coming from a separate 5 volt source. Anyway, the 5 volts for each LED are all connected together to the same source, not to an individual pin on the Arduino circuit board.
Paul_KD7HB:
Your English writing is just fine! And welcome to the Arduino forum.
The 5 volts to the LEDs is probably coming from a separate 5 volt source. Anyway, the 5 volts for each LED are all connected together to the same source, not to an individual pin on the Arduino circuit board.
Paul_KD7HB:
Now, your English is not so good! The jack doesn't matter, what you connect it to really does matter.
Paul
Sorry was a bit distracted.
I want to connect the 36 LED´s and the roughly 25 Switches to the 5V Source.
But i don´t think just one 5V jack can handle this right?
MonoTone:
Sorry was a bit distracted.
I want to connect the 36 LED´s and the roughly 25 Switches to the 5V Source.
But i don´t think just one 5V jack can handle this right?
36 LEDs - are these normal indicator LEDs? ie, 20mA?
If 20mA, that's 720mA total, plus another 50 for the Arduino. That's under an amp - those barrel jacks can handle a couple of amps no problem - just make sure you select an appropriate power supply.
DrAzzy:
36 LEDs - are these normal indicator LEDs? ie, 20mA?
If 20mA, that's 720mA total, plus another 50 for the Arduino. That's under an amp - those barrel jacks can handle a couple of amps no problem - just make sure you select an appropriate power supply.
