![]() ![]() All power seems stable across the board, 5v and 3v3, whether it be from usb or from the barrel, tested up to 12v in on the barrel.Īgain my apologies if this has been covered before, if it has, I'd be more than happy to scour over any threads that may be related. I realized need to add the following: I can see the mega when its connected via usb, on any device, be it laptop, tablet, or phone, but it doesnt respond to communication. Is there an alternative way to enter dfu mode? And might there be any other components that may have fried without me realizing? There was no magic smoke or burning, just a light pop as a piece flew off the regulator. It is a mega 2560 r3 for sure, but a osoyoo knockoff. I have attempted to place the board into dfu mode to no avail, however the board doesnt quite match up with others I have seen. I am at a loss as to how to proceed with determining if the 16u2 is blown, or if there may be another component that needs to be replaced as well. Having replaced that, I still sm unable to restore communication with the mega via usb, however the ramps shield still powers properly, and I can still run my 3d printer from the program currently on the mega, so the main micro seems to be functional. I promptly removed the ramps shield and found a blown voltage regulator on the mega. Shortly after, I lost power and usb communications with the mega. I know my mistake here was not having removed the d1 diode on the ramps shield, and so it didnt even cross my mind when power was coming in via the ramps shield, the usb connection, and the ps-on/5v/vcc jumper was bridging the ps-on/5v pins. The other day I was configuring my anet a8 printer with a new ramps 1.4 and mega 2560 controller, and didn't realize that I had, I believe, 3 power sources into the arduino. It does not store any personal data.My apologies if this has been asked before, I did search through the forums but didn't find anything quite like my issue, so I'm hoping a more learned mind may be able to help point me in the right, or a better, direction. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Control stepper motors and components without relying on Marlin or GRBL software.Ĭompatible with A4988, DRV 8825 Stepper Motor Driver the arduino-mega section of the sample-alias.cfg gave me what I was looking for (I got the arduino pin numbers from the marlin pinsRAMPS.h file. Customizable Control: Refer to the RAMPS 1.4 schematic for pin mapping and craft your own Arduino IDE code. I have googled for 'ramps 1.4 pinout' but I cant find anything that lists the actual hardware pin numbers (I have found a list of arduino pin numbers though).Each offers unique features, but all maintain the core RAMPS structure, ensuring compatibility with firmware like Marlin. ![]() ![]()
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