Search found 25 matches
- Tue Jun 28, 2016 12:49 pm
- Forum: Guides
- Topic: PWM Audio Guide
- Replies: 77
- Views: 255258
Re: PWM Audio Guide
Please don't kill me if this is a stupid question... does it have to be a 0.033uF capacitor? Only thing I could get was a 0.047uF. I believe it would be fine but I am not quite sure. I do know adafruit used a 0.01uF and claimed they would just have a higher cutoff frequency with nearly no audible c...
- Sat Jun 25, 2016 9:31 pm
- Forum: RetroPie
- Topic: delete files
- Replies: 2
- Views: 3771
Re: delete files
Code: Select all
rm -rf foldername
Code: Select all
rm -r foldername/*
- Sat Jun 25, 2016 5:53 am
- Forum: Guides
- Topic: PWM Audio Guide
- Replies: 77
- Views: 255258
Re: PWM Audio Guide
@joe7dust Just use the same ground you used for the audio filter you just made, you can solder a wire where you attached the ground and to your audio plug.
- Fri Jun 24, 2016 6:26 pm
- Forum: Guides
- Topic: PWM Audio Guide
- Replies: 77
- Views: 255258
Re: PWM Audio Guide
So say i'm doing mono sound, is this the code i would use? dtoverlay=pwm-1chan,pin=18,func=2 (for left channel?) vs dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4 I have not tried mono sound myself yet but from my own tests, pin 18 was outputting in the right channel so I believe pin2 and func2 ...
- Sat Jun 18, 2016 8:50 pm
- Forum: General Hardware
- Topic: Charging two batteries vs one
- Replies: 0
- Views: 2422
Charging two batteries vs one
So I have this portable charger I want to salvage for my project, the only issue is it is using two 2500mah batteries in parallel and I don't have the space for both of them in the case. Does anyone know if I could desolder one of these batteries and have the charging circuit run as normal? I'm not ...
- Mon Jun 13, 2016 2:20 am
- Forum: General Chat (Game Boy Zero)
- Topic: Retropie, white screen
- Replies: 18
- Views: 22003
Re: Retropie, white screen
I think you have both the HDMI plugged in as well as composite, in that case it may be that you can't use HDMI and Composite at the same time, HDMI initially takes priority over composite at boot. In my case I had to unplug the HDMI cable before booting up the pi if I wanted Composite and if I wante...
- Tue Jun 07, 2016 9:06 pm
- Forum: Announcements
- Topic: 3D Printing Forum
- Replies: 28
- Views: 71610
Re: 3D Printing Forum
@Wermy Do you know of the button well measurements or where I can get them? I might need to make some for my project as well.
- Mon Jun 06, 2016 8:32 pm
- Forum: Guides
- Topic: PWM Audio Guide
- Replies: 77
- Views: 255258
Re: PWM Audio Guide
So, this is interesting. I'm bypassing the circuit completely. I'm going GPIO13 to Audio + on my Audio Amp. An Audio - is going to GND. And the audio is totally clean. (With the circuit, there was a little bit of 60hz hum). So, do we even need the low pass filter? It's not as though we are even goi...
- Mon Jun 06, 2016 5:51 pm
- Forum: Guides
- Topic: PWM Audio Guide
- Replies: 77
- Views: 255258
Re: PWM Audio Guide
Hey thanks! I'll be covering this in my next guide, I'll definitely point people here as well. :) Sounds great, let me know if anything should be changed to help streamline everything! I just finished a mono version of this circuit and it wasn't working until I reversed the GPIO and GND pins going ...
- Sun Jun 05, 2016 11:29 pm
- Forum: General Chat (Game Boy Zero)
- Topic: Help with PWM audio
- Replies: 9
- Views: 10084
Re: Help with PWM audio
If you would like to take a crack at it here is my guide. Hopefully it helps! If you still have issues let us know! http://www.sudomod.com/forum/viewtopic.php?f=22&t=480 I made a simplified schematic for anyone who might not understand the original schematic. @1461748123 did a great job with his, yo...