So the 3 "pins" that need the voltage dividers are PWM pins 9,10 &11.If you do a little research you will learn: If you look at the board layout you see Arduino digital pins 2,3,4 &5 and 9,10 & 11. Each voltage divider consists of one 1.5k and ONE 3.2 (or 3.3k). "These resistors are used as a voltage divider to down the 5v output of Arduino I/O pins to 3.4v".We have 3 SETS of resistors that form voltage dividers.Title of the section the resistor are part of, namely the ULN2003 circuit. You posted the text description and completely left out the MOST IMPORTANT part, that being the You repeated ask about the resistors, but don't bother to mention what they are for. So Tru, do you understand anything about the electronic circuits you build or do you just build it like a piece of Ikea furniture by following the instructions with no idea why anything is the way it is ? Why are posting a board layout for the FF Module Shield which has absolutely NOTHING to do You have a good guide of how to do in the same page.Ĭopy to the Micro SD card and put the card in the WTV020 slot. ad4 you can use SOMO Tool from 4dsystems ( ). Read the link you posted and scroll down to the part where it says you have to order a separate board for the sound(WTV020-SD-16P).īTW, it's not very helpful that you didn't even bother to mention WHAT you purchased.įrom what I can tell it was the FF Module.īut my question is, are resistors are right? You do realize that you have to buy a separate board for the sound, right ? You will need 3 of each.īut in the circuit diagram are other resistors than in the text discription. You can use 1.8K to pin and 3.3K to ground to simplify, and you will obtain 3.24v. (*) This resistors are used as a voltage divider to down the 5v output of Arduino I/O pins to 3.4v in my case (1.5k to pin, 3.2k (2.2k+1k in series) to Ground). Would someone could tell me, if the resistors are right? Maybe i've made something wrong at the soldering, i'm new to this.īut i think, i've soldered the wrong resistors. the SD card has no contact to the slot (SD card ist FAT16, 1GB and the *.ad4 files are ok) The LED Part works fine, but i can't play any soundfiles. Then i make a PCB Board and soldered the items. I've add LED stripes to my Printer, works fine.īut now, i've found a solution for LED AND Sound ( controlled by g code, M150 R000 U000 B255 <- for Blue or M150 R255 U001 B00 <- to play sound file (*.ad4 files). I've build a 3D Printer, Arduino Mega 2560 + Ramps 1.4 + Marlin 1.1.8 and everything works fine.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |