[OSHPark] PWM Audio Buffer Boards (SMD and Through Hole)

bluebiscuit85 · Post by **bluebiscuit85** » Wed Sep 07, 2016 1:32 pm

I'm going to be making an order from tayda. Does anyone know any other projects that I can use some of these smd parts on or other projects I can order from there to bump up over the 5 dollar minimum order?

Post by **Helder** » Wed Sep 07, 2016 4:28 pm

Get some NPN transistors SMD and also the 10k and 33k resistors and some 3mm leds and the 10k trim pot and you can build the Low Battery LED board I have on OSHPark.

bluebiscuit85 · Post by **bluebiscuit85** » Thu Sep 08, 2016 1:50 pm

Helder wrote:Get some NPN transistors SMD and also the 10k and 33k resistors and some 3mm leds and the 10k trim pot and you can build the Low Battery LED board I have on OSHPark.

Got those too. I ended up ordering some tweezers because that crap is tiny. And I got some 22g solid wire in different colors to make my build a little easier to wire. Now that I have 50+ of everything is there anything else I could use it on?

Post by **Helder** » Thu Sep 08, 2016 3:28 pm

bluebiscuit85 wrote:
Helder wrote:Get some NPN transistors SMD and also the 10k and 33k resistors and some 3mm leds and the 10k trim pot and you can build the Low Battery LED board I have on OSHPark.

Got those too. I ended up ordering some tweezers because that crap is tiny. And I got some 22g solid wire in different colors to make my build a little easier to wire. Now that I have 50+ of everything is there anything else I could use it on?

I'm sure there will be other projects to come up that will use them.

Ah Cup · Post by **Ah Cup** » Sun Oct 16, 2016 12:33 pm

Hathe wrote:Finally got a chance to test it. Got it all wired up last night and could not get it working. I think PWM0 is default right channel? I had it wired to left, switched it over to right and got it working this morning. Super loud using the uxcell 3w amp, there's a bit of hiss I need to work out though.

Thanks again, Helder.

Do you have any luck removing the hiss? I run into the same problem and I can't figure out what went wrong.

Post by **Helder** » Sun Oct 16, 2016 3:44 pm

Ah Cup wrote:
Hathe wrote:Finally got a chance to test it. Got it all wired up last night and could not get it working. I think PWM0 is default right channel? I had it wired to left, switched it over to right and got it working this morning. Super loud using the uxcell 3w amp, there's a bit of hiss I need to work out though.

Thanks again, Helder.
Do you have any luck removing the hiss? I run into the same problem and I can't figure out what went wrong.

Go to my support thread's first post (it's in my signature) there are answers to help get rid of the hiss but it will always be there because of the analog signal. You can help make less noticeable too buy adding 2.2uf caps in line with the PWM line going to the pcb.

Ah Cup · Post by **Ah Cup** » Sun Oct 16, 2016 7:28 pm

Helder wrote:
Ah Cup wrote:
Hathe wrote:Finally got a chance to test it. Got it all wired up last night and could not get it working. I think PWM0 is default right channel? I had it wired to left, switched it over to right and got it working this morning. Super loud using the uxcell 3w amp, there's a bit of hiss I need to work out though.

Thanks again, Helder.
Do you have any luck removing the hiss? I run into the same problem and I can't figure out what went wrong.
Go to my support thread's first post (it's in my signature) there are answers to help get rid of the hiss but it will always be there because of the analog signal. You can help make less noticeable too buy adding 2.2uf caps in line with the PWM line going to the pcb.

Thanks for your help Helder. I'm going to try to add a 2.2uf cap to the PWM line as I already tried the config.txt line.

JaseSerre · Post by **JaseSerre** » Mon Jan 23, 2017 8:17 am

Hi everyone..i am a new user here. In my case i wired the audio and got to the point where i needed to wire the amp to the filter to the zero, but i didn't know exactly what went where and how to add the potentiometer to the system so i couldn't finish it yet.

Lpoolm · Post by **Lpoolm** » Mon Jun 05, 2017 1:50 am

i know an old thread but does anyone know where i can get (reasonably priced within UK) smd 10uf electrolytic capacitor? i have found all the other parts off ebay but can not find these?

VeteranGamer · Post by **VeteranGamer** » Mon Jun 05, 2017 2:28 am

Lpoolm wrote: ↑
Mon Jun 05, 2017 1:50 am
i know an old thread but does anyone know where i can get (reasonably priced within UK) smd 10uf electrolytic capacitor? i have found all the other parts off ebay but can not find these?

this may not be exactly what you want....

http://uk.rs-online.com/web/p/aluminium ... s/5370124/

but have you tried rs componants

http://uk.rs-online.com/web/

give them a call, i think their postage is normally free (depending on the order) or very low cost....

[OSHPark] PWM Audio Buffer Boards (SMD and Through Hole)

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