the onboard LED's are deliberately kept dim by significantly limiting the current through them by using higher than normal resistor values on board. this is to make sure most of the pin current is still available for the user, or if it is used as an input it will not draw to much current from the user device attached to that pin.
Where do I find the details what pins on control board area capable of.. I am having an issue with running lcd and max7219 together on the arduino uno board
Im trying to backlight a switchboard and i want each switch to have its own led to indicate that its on and when i flip the switch the led changes to show the switch is on then flip the switch to off the led changes back. Would you please be help me out by explaining how to do this. Im new at arduino and coding so I have no idea how to accomplish this. I would highly appreciate the assistance.
My initial thought is to use one input for the switch and two outputs to drive the LED/s. There are a few ways to drive the LED/s, 1. using a two color LED and 2 gpio pins where one GPIO output is high and the other is low and the LED is wired between them, When you want to change its color you reverse the outputs polarity so the led now has voltage applied in the other direction. Another way it to simply use 2 different color LEDs if there is room. the third way if you have programming room is to use what is now known as a NEO pixel, the details can be found on ADAFRUIT, these are very cool and not too expensive, A library is available free from ADAFRUIT. A neo pixel can output thousands of colors :) and if you wanted more LEDs you dont need more GPIO pins.
I'm looking into buying my first kit, Amazon currently have the Uno starter kit at £43 and the Mega at £60 is the mega worth the extra money or (as a beginner) should I get the cheaper one?
If both kits have pretty much the same components aside from the UNO vs Mega then i would go for the UNO first, you can always just buy a standalone MEGA later and or ESP based boards, they will all work with most of the components provided, if you want me to look at both kits, link the products in a reply and I will have a quick look
i just bought "the most complete starter kit for mega 2560" £54.99 from amazon, im 53yo biker, i want to kit my mates with coms.,security and emergancy warning, i am old school. Right now we yous ham and UHF radio, i am dyslexic so education is easy-er by Y/T,
No part 3?
I'm having trouble finding the website that takes you to a blank sketch exactly for the mega2560, i was wondering how to get there.
Pin 13 has a resistor built in for the onboard Led , so would not be white, plus the red is dimmer because of 2 resistors
the onboard LED's are deliberately kept dim by significantly limiting the current through them by using higher than normal resistor values on board. this is to make sure most of the pin current is still available for the user, or if it is used as an input it will not draw to much current from the user device attached to that pin.
Where do I find the details what pins on control board area capable of.. I am having an issue with running lcd and max7219 together on the arduino uno board
Im trying to backlight a switchboard and i want each switch to have its own led to indicate that its on and when i flip the switch the led changes to show the switch is on then flip the switch to off the led changes back. Would you please be help me out by explaining how to do this. Im new at arduino and coding so I have no idea how to accomplish this. I would highly appreciate the assistance.
My initial thought is to use one input for the switch and two outputs to drive the LED/s. There are a few ways to drive the LED/s,
1. using a two color LED and 2 gpio pins where one GPIO output is high and the other is low and the LED is wired between them, When you want to change its color you reverse the outputs polarity so the led now has voltage applied in the other direction. Another way it to simply use 2 different color LEDs if there is room. the third way if you have programming room is to use what is now known as a NEO pixel, the details can be found on ADAFRUIT, these are very cool and not too expensive, A library is available free from ADAFRUIT. A neo pixel can output thousands of colors :) and if you wanted more LEDs you dont need more GPIO pins.
I like the video, but how does it control stepper motors that require greater current and say the 48 volts for nema 34 servos, thanks
I am preparing to make a video on that very subject, stay tuned.
@@TheBreadboardca thanks
I'm looking into buying my first kit, Amazon currently have the Uno starter kit at £43 and the Mega at £60 is the mega worth the extra money or (as a beginner) should I get the cheaper one?
If both kits have pretty much the same components aside from the UNO vs Mega then i would go for the UNO first, you can always just buy a standalone MEGA later and or ESP based boards, they will all work with most of the components provided, if you want me to look at both kits, link the products in a reply and I will have a quick look
@@TheBreadboardca Thanks, I came to the same conclusion in the end and bought the UNO kit, should be here tomorrow so looking forward to diving in.
Great Video, I love the instruction!
i just bought "the most complete starter kit for mega 2560" £54.99 from amazon, im 53yo biker, i want to kit my mates with coms.,security and emergancy warning, i am old school. Right now we yous ham and UHF radio, i am dyslexic so education is easy-er by Y/T,
I'm even more confused after watching this video