arduino: a cheap board for E11 blaster effects

[Balders]

Yeah, I had trouble spotting it, I actually noticed it when I cut a square hole for it to fit in and noticed one corner didn't look right

[StriderX[501st]]

When I use the amplifier module the speaker picks up a little bit of distortion as well as a pulsating kind of noise. However, when I pluck the speacker directly into the WT5001 it's absolutely silent except when a sound is played.

 

I was wondering whether anybody experienced something similar or if I have a caught a bad amplifier module?

[Balders]

Have you double checked all the grounds?

[skyone]

When I use the amplifier module the speaker picks up a little bit of distortion as well as a pulsating kind of noise. However, when I pluck the speacker directly into the WT5001 it's absolutely silent except when a sound is played.

 

I was wondering whether anybody experienced something similar or if I have a caught a bad amplifier module?

i think it's normal, we should use ferrite and/or capacitors to have more clean sound.

 

as for led bar how to detect anode and cathode

just look at kingbright dc-7g3hwa datasheet pdf there is a very clear scheme where you can notice that the cutted corner is Anode side

 

Edited September 20, 2015 by skyone

[StriderX[501st]]

i think it's normal, we should use ferrite and/or capacitors to have more clean sound.

 

as for led bar how to detect anode and cathode

just look at kingbright dc-7g3hwa datasheet pdf there is a very clear scheme where you can notice that the cutted corner is Anode side

 

 

 

Have you double checked all the grounds?

 

Thanks, guys. I've only looked at the ammo counter from the side and did not realize you have to look at the face of it - now it's clear ;-)

 

@ Steve: Yes, that was it! I've hooked both GND into the WT5001. Now, after putting the upper one in the general GND (from the Arduino) it's fine. Also I've changed the speaker to a slightly larger one with 7,5cm diameter and now it's incredibly loud

[Balders]

Grrr...a supplier sent me a JQ6500 mp3 board when I ordered a WT5001M02, anyone used one of these?

[StriderX[501st]]

Nope, but did you try to hook it up the same way as you would the WT5001? They appear to be quite simular.

[Balders]

I had a quick go and got nothing out of it.  I'm not an expert....would VCC on the diagram be +5v from the arduino? And should I be plugging the Tx arduino output to the Rx input on the diagram (4th pin down on right)? The docs suggest using an arduino library but I'm guessing that the wt5001 code already references serial writes?

 

[skyone]

I had a quick go and got nothing out of it.  I'm not an expert....would VCC on the diagram be +5v from the arduino? And should I be plugging the Tx arduino output to the Rx input on the diagram (4th pin down on right)?

yep

 

it supports serial commands as wt5001

 

http://www.elecfreaks.com/store/download/product/Module/jq6500_mini_mp3_module/Datasheet.zip

[StriderX[501st]]

Did you try the following >>>

 

VCC ---> 5V

GND (any of them I guess) --> GND

RX ---> TX1

SPK+/SPK- ---> Speaker

[Balders]

Yup. Even tried triggering manually (ground to k1 pin for example) and nothing. The led lit up as if it was trying to play something so it might be my amp is playing up. Will try again tonight, although I do have another wt5001 en route from another supplier.

[StriderX[501st]]

I've finished the electronics for my MG-15/RT97 build now. I've changed a little bit from the original design in order to fit the weapon:
 
- Random Sandtrooper voices at start up
- Green light to indicate weapon is online
- added MG-42 sound

- changed Wookie sounds agains Boba Fett quotes
- new LED setup accompanying the respective weapon

 

Here's a video, hope you like it

 

https://youtu.be/urK8bW0Iz-w

Edited September 23, 2015 by StriderX

[skyone]

Yup. Even tried triggering manually (ground to k1 pin for example) and nothing. The led lit up as if it was trying to play something so it might be my amp is playing up. Will try again tonight, although I do have another wt5001 en route from another supplier.

serial commands look differents

from datasheet in china-english:

 

0x12

The former 01 refers to the folder while the latter refers to the file. Note 1: 【7E 04 12 01 01 EF】 play the file 01 in the folder 01

 

 

i would try

 

          // play file 01 in folder 01

          Serial.write(0x7E);

          Serial.write(0x04);

          Serial.write(0x12);

          Serial.write(0x01);

          Serial.write(0x01);

          Serial.write(0xEF);

[skyone]

I've finished the electronics for my MG-15/RT97 build now. I've changed a little bit from the original design in order to fit the weapon:

 

- Random Sandtrooper voices at start up

- Green light to indicate weapon is online

- added MG-42 sound

- changed Wookie sounds agains Boba Fett quotes

- new LED setup accompanying the respective weapon

 

Here's a video, hope you like it

 

 

it's cool but still i can listen too much noisy on background. I would try different speakers, differente amp, or adding a small capacitor to the mp3 power source.

[StriderX[501st]]

Thanks, bro. Yeah, I'm not really satisfied with the sound quality yet. It will get a bit better with proper wiring but I'll definitively try some other speakers.

[Balders]

Can't wait for my sound board to be delivered. I've ordered 3 from different places in the hope at least one will get here quickly!

 

In the meantime, here's how my blaster is coming along:

 

https://youtu.be/H5VSoUWCKPw

[StriderX[501st]]

Wow, good job! But why put it into a Hasbro and not some more authentic pipe build?

[Balders]

Because it's what I had to hand...and my official blaster will be a RotJ to go with my suit.  Pipe build coming next

 

New sound board arrived today, but so far no luck in getting it going. Can I just check, the mp3 files should be in the root of the microSD card right? I've used the drive tool utility to sort the files.  Must the SD card have nothing else other than the files?

 

Edit:  Ignore that, the sound board and sound files are working perfectly!  For some unknown reason (I must be having all the luck!) my amp has packed in!  I tested it a couple of weeks back with a normal sound source and haven't touched it since, but it's just not working now.  Can figure out why, gets a little warm but not "hot" but I've tested the signal gets in, power in is also good, I just get nothing out the other side.  Will de-solder it and see if I can find anything amiss.

 

Edit 2:

 

Here's the system with the speaker wired straight to the MP3 board. New amplifier ordered.

 

https://youtu.be/MCRod5s98WA

Edited September 28, 2015 by Balders

[Balders]

Managed to squeeze everything in and close it up. Once replacement amp board arrives, will probably trim and resolder the wires to tidy things up, and will also discreetly fit a 3.5mm jack socket so I can output to my aker if needs be.<br>

Edited September 29, 2015 by Balders

[Balders]

I want to say a huge "thank you" to Skyone/Manuel for putting this project into the public domain. I finally completed my E11 blaster tonight, it's all working exactly as designed, I'm amazed how loud it is!

 

I power mine from a 2cell 450 lipo which fits nicely inside the now hollowed out battery tray on my Hasbro/Doopydoos E11. Rest of the electronics was a bit of a squeeze...had to trim a lot of the internal plastics away, but it does now all fit and closes nicely.

 

Thanks again Skyone.  I now have the nickname "Electro" in my local patrol!

 

Regards,

Steve

[skyone]

you made a great work Steve!

[cibcon1]

hi, skyone, greetings, one question, you think i can use a arduino pro mini instead a nano for this proyect or i have change much the code?

thanks for the answer an this post.

[skyone]

i don't remember specs of arduino pro min, just check u have enough pins and pwm pins

the code should be the same

[Marshall[TK]]

I'm slightly rewriting my code for a pro mini after development on an Arduino uno. The only thing to look at is to be sure you're using a 5v/16mhz pro mini as it also comes in 3v/8mhz format which can have slight differences in the effectiveness and project compatibility. As for pins, the number is almost the same if the Arduino uno bigger brother. It only has no power regulated 3v output so you have to arrange it externally

 

Sent from my SM-G900F using Tapatalk

[cibcon1]

this is the pinout of pro mini, i think have the same 13 pins and is  5v/16 mhz, what do you thinks guys?. I do not even have all the components to make a test, i hope this board works.