Re: X-motor troubles.... (pololu stepper. marlin v1, 1.3a board, 1284p chip)
Its a fresh install of marlin v1.0.0 (according in the data dump on connx to the printer software). The whole assembly was working (with a 644p chip) until the blue smoke monster and my chubby fingers...
View ArticleRe: Sanguinololu communication issues
Thanks Yacob. I found a similar suggestion in the Sanguinololu page. It said to change it from 57600 to 38400 and restarted the Arduino app. It came up with a different error (I don't remember exactly...
View ArticleRe: Sanguinololu communication issues
I did a bunch of searches last night but I tried a different one this morning and found something else good to try (and a link to another doc): QuotePandPP As per [forums.reprap.org], I needed to...
View ArticleATmega644P vs. ATmega1284P
I bought a used kit that came with a sanguinololu with an ATmega644P. I've seen a lot of discussion about boards with ATmega1284P and I'm assuming it's newer/better/faster. But in a reprap (prusa2)...
View ArticleRe: prevent usb 5V backfeeding
This is very intriguing. Thanks for sharing the idea. I haven't quite figured out what I was going to do about this and I couldn't quite decide if it was even still a problem (sometimes the boards get...
View ArticleRe: Sanguinololu communication issues
Yeah! I got it working. Somehow I'd messed up some file and nothing would even compile. So I reloaded the sanguino files and then made these two changes and changed the device manager settings so the...
View ArticleRe: ATmega644P vs. ATmega1284P
Besides a few unused features, the 1284P has more flash memory, so you can upload bigger sketches. Anything else, packaging, pinout and even speed is exactly the same. Accordingly, upgrades make only...
View ArticleRe: ATmega644P vs. ATmega1284P
Thanks Traumflug. I was planning to use Marlin with the SD card attachment (but not the LCD panel stuff). Hopefully it compiles into somethign small enough to fit. If not, I may switch to something...
View ArticleRe: ATmega644P vs. ATmega1284P
QuoteOn a different topic, why is the firmware called a "sketch"? Because the Arduino folks choosed this name :) It's plain C or C++, supported by the library coming with this IDE. That's all.
View ArticleRe: prevent usb 5V backfeeding
I couldn't find all the correct parts in my scrap pile but I did have extra USB cables. So I just took one and cut through the red +5V wire. I put some heat shrink on each end to make sure it wouldn't...
View ArticleRe: how to add a fan to sanguinololu?
Hi guys, this is exactly what I did, I just put it in between one of the stepper-connections. The fan runs fine and continuous, halfway into a print, I wonder how it will come out in the end :) I...
View ArticleAccessory Header pinout for Sanguinololu 1.3a?
Hi all - I am using Sanguinololu 1.3a and am interested in adding a cooling fan control. I heard one can make a simple mosfet switch to turn the fan on via the PWM pin. Is there a pin layout diagram...
View ArticleRe: Accessory Header pinout for Sanguinololu 1.3a?
I just happened to have this open in another window: 1.3a Schematic
View ArticleRe: prevent usb 5V backfeeding
What a great suggestion! I would make one note; maintaining the ground connection can help shield the cables from noise. If you are using long runs of USB cable you should retain the ground...
View ArticleNo board communication
I have been working on trying to get my printer running and everything is complete, at least for a test run anyway. The problem I have now is that I can't get the computer to recognize the board. I...
View ArticleRe: Melzi/Sanguino ATMEGA 1284P 16Mhz I2C LCD 20x4
Which firmware are you using? I understand that Repieter and Marlin firmware but have the capability to drive LCD screens/switches. I have also read that the Melzi does not have enough spare pins to...
View ArticleRe: Sanguinololu communication issues
I've been seeing the avrdude: stk500_getsync() error in several sanguinololu boards that I have been testing this week. Three of them have the 644P, and one of them has the 1284P. In the case of the...
View ArticleRe: No board communication
Hey! i will help you look for an answer. basically i only dealt with RAMPS but in my opinion u have one of the three problems: 1- try a different usb cable! 2- the ftdi chip is damaged 3- the ubs...
View ArticleRe: reprap host software cant communicate with board
Hi, i am using java host software, when connecting to the board, GUI is not displaying. While debugging i found that serial port value always returning -1. I am using five D Gcode firmware. Anyone...
View ArticleRe: No board communication
I tried a different cord and it didn't help. Also, the LED does not come on when plugged in. Am I looking at a damaged board here? If so do you think RAMPS would be a better choice to move to or is it...
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