Hackduino-like thing help!? Answered

First a little background to help you understand whats going on... I live in the Philippines, i grew up here and part of my hobby is Electronics. I usually scrounge up parts due to the fact that parts are kinda outta my reach and it's a shame to let all that money go to waste when i can find salvaged parts. Recently, i got the idea of programming and searched around 'ibles for pojects on TI's MCUs. Finding none, i thought it wouldn't be worth the effort to try to program one of these with lack of info so i thought "what about the arduino?". Arduinos are kinda popular here but one thing sets me back. Getting one. So since my mom won't let me get an arduino (i'm a High school student), i need to resort to making one. Most of my sample requests from Atmel have been denied so it's time to quit being a cheapskate just for arduino! (and for science yay!) I sourced some parts, haven't bought the most important ATmega328 (it's kinda big but better get it than upgrading) and i'm starting to prepare. I read the HackDuino and i just need some help and info such as: * How do i make an arduino using common electronic parts? * What schematic will i use that will allow me to upload using a serial port? * How will i prepare the chip without another arduino? (I heard about bootloaders and stuff) I have lots of questions, but if you know some arduino tips and facts, you may throw it in Thanks in advance

Asked by beehard44 7 years ago


Ceramic resonator vs. Quartz crystal for arduino? Answered

Hey- I'm going to build some Arduino clones (as posted from http://fritzing.org/projects/barebones-arduino/ ) and was wondering if it would be better to use a crystal or a ceramic resonator. i will be ordering from Tayda Electronics (Ive ordered before, 10 days shipping for rock bottom prices, I'm ok with that) and the resonators and crystals are +-5c. difference, so I was wondering if I could use resonators, since they are a bit cheaper and I'm ordering a few (around 8). Which ones would be better? Also, does anyone know for the circuit from the above link would work with a 4.5v supply if I just left out the 5v regulator? Many thanks- Astroboy907

Asked by astroboy907 7 years ago


Any "Cheap-Duinos" based on the ATMega1280/1281/2561 MCUs?

Hi there. I'm using a Arduino Mega-1280 in a project, and am wanting to "free it up" for other things. I see that there are a number of cheap-duino replacements here and other places (ie; https://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/), but I haven't found any that specifically incorporate the ATMega1280/1281/2561. Basically, I'm needing all four of the hardware UARTs this family of MCUs provide, without reverting to interrupt-driven, software-based serial I/O it's predicesors utilize, having the extra memory certainly doesn't hurt either. Thanks in advance for any suggestions, links, etc! Regards, Scott

Asked by tennisaddict 7 years ago


403 FORBIDDEN

Not sure if this is a bug or if should be brought up in this section, I apologize in advance if it does not belong here. I was on the site gearing up to do the "Perfboard Hackduino (Arduino-compatible circuit) "by jmsaavedra and all was good until I selected the view all steps button. I received and still receive       "403 Forbidden                                                                                   Request forbidden by administrative rules."                                                                                     Can anyone lend a hand here? I've been looking forward to making a few of these for some time now and finally have just about everything needed (except my sockets for atmegas,any day now) but figured I could just leave all final connections to chip open to do later. Would post a pic but I'm sure we've all seen the white page with black letters at one point in our lives. It happenes on all my computers and my android.Please help.

Posted by taattooed3 5 years ago


Help with MAX232 Serial Converter troubleshooting?

Ok..long story short.. built this Instructable: (minimal Arduino on poerfboard,.  w/ blank Atmel) I put this on a breaboard instead https://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/ I then installed Arduino IDE, as well as WinAVR/avrdude I tried to build a parallel programmer: http://www.arduino.cc/en/Main/ParallelProgrammer but it didnt work.. (not sure if it because of WinAVR?avrdue setting?  but command line AND flashing bootloader through Arduino IDE did NOT WORK.. AVRDUDE gives this response: avrdude: can't open device "giveio" avrdude: failed to open parallel port "lpt1" pinout for parallel programm was as follows: PP     ATMEL  (pinout) 1    -  19 2    -  17 11  -  18 16  -  1 18  -  GND on breadboard*** no clue even Ive asked and googled.. couldnt find a 'real' solution to this.. so I looked around..and I found a couple MAX232 chips laying around..figured Id use these to build a Serial Converter using this tut: http://sodoityourself.com/max232-serial-level-converter/ I this all set-up on my breadboard: (pics to check what Im doing wrong) *******(the images shows the vRegulator moved over 1 pin..it has been corrected but after pic was taken) http://dmstudios.net/misc/max232_circuit/top.jpg http://dmstudios.net/misc/max232_circuit/1.jpg http://dmstudios.net/misc/max232_circuit/2.jpg I have checked the vRegulator portion..  I have a cap BEFORE the regulator  *bridging GND & output* and I use my meter to check that there is, in fact, 5v coming from it..  and there is... HOWEVER...  the vRegulator gets SUPER HOT, SUPER FAST!... if I dis-connect the pin 16 form the  chip to the ++ then the vRegulator does NOT get hot... once I bridge it.. instant HEAT.. so is it something I have done wrong in my diagram? http://dmstudios.net/misc/max232_circuit/diagram_1.jpg vRegulator not show in diagram here;; in this diagram.. as soon as I hook up the V++ to pin16 on the chip.. and the cap..etc  something is wrong?? I 'do' have some FTDI cables coming from China for a few bucks.. but this is ONLY for sketch uploading...correct? I also have a true Arduino Due coming as well... but hate waiting weeks when I want to play and get started now! Any help is appreciated..   Im new to all this, so be nice!  LOL thanks gang!

Posted by xl97 8 years ago