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69Roadrunner
Posts : 2
Join date : 2023-04-07

Home brew SDS-P25RX Empty Home brew SDS-P25RX

Fri Apr 07, 2023 9:23 pm
I put a P25RX in a enclosure with a display and audio amp. Something I have been meaning
to do for a long time but, life kept getting in the way. Many thanks to "Goldmyne99" for his
help with the Teensy board programming. I plan on changing the front panels to etched
thin aluminum or at least something better than laminated printer paper.

Lets see if these hosting image links work.......Jim

https://servimg.com/view/20492686/4

https://servimg.com/view/20492686/6

https://servimg.com/view/20492686/5

BTT, pcman67, TheBoy, Goldmyne99, Redbluff and Blackswan like this post

BTT
BTT
Admin
Posts : 219
Join date : 2023-03-23

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Fri Apr 07, 2023 9:31 pm
Nice work @69Roadrunner! Your setup looks great! What are you using to drive the speaker?
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69Roadrunner
Posts : 2
Join date : 2023-04-07

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Fri Apr 07, 2023 10:20 pm
It is called a PAM8403
3 watt 5 volt amp with a pot attached.
I have a few of them for different things.
Line level in and 4 ohm speakers seem about right.
6 bucks on e-bay.

BTT likes this post

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bstafford
Posts : 8
Join date : 2023-04-04

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Sat Apr 08, 2023 6:27 pm
Saw this over on RR, looks great! Been thinking about doing something like this for a couple months now but haven't quite jumped in yet in designing. This gave me a few more ideas. Now I just need to get permission to raid the junkpile in the back of our warehouse at work that is referred to as Deep Space 9.
BTT
BTT
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Posts : 219
Join date : 2023-03-23

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Sun Apr 09, 2023 9:27 pm
I see now that it isn't possible to attach images with this forum unless you host them somewhere else. That makes sense for a free forum. If interest in BTT receivers picks up at some point in the future, I will look into other solutions. Radioreference.com uses https://xenforo.com/. That is interesting, but current sales will not allow for that.

freqseeker and N4VKF like this post

pcman67
pcman67
Posts : 10
Join date : 2023-04-04
Location : Orlando, Florida

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Mon Apr 10, 2023 9:29 am
Great job on your enclosure for the P25RX, 69Roadrunner! I hope to try and do something like that to my rig one of these days soon.
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dcr_inc
Posts : 30
Join date : 2023-04-13
Age : 65
Location : Delta, PA

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Thu Jan 25, 2024 1:53 pm
What display is that you are using?
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Goldmyne99
Posts : 47
Join date : 2023-04-10

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Thu Jan 25, 2024 3:46 pm
dcr_inc wrote:What display is that you are using?

He is using a 3.2 inch ILI9341 TFT display, driven by a Teensy 4.0 mcu. It is the same mcu and display I use in my P25RX handheld project (behind my MicroP25RX in this Pic)Home brew SDS-P25RX Microa10
.
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dcr_inc
Posts : 30
Join date : 2023-04-13
Age : 65
Location : Delta, PA

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Thu Jan 25, 2024 3:49 pm
what do you use for the "buttons" and joystick inputs on the TFT?
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Goldmyne99
Posts : 47
Join date : 2023-04-10

Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

Thu Jan 25, 2024 3:57 pm
dcr_inc wrote:what do you use for the "buttons" and joystick inputs on the TFT?
In my P25RX project, the ILI9341 also is a touch screen driven by Arduino code with the Teensy 4.0 mcu. This was built prior to finding the Wio Terminal device.
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Home brew SDS-P25RX Empty Re: Home brew SDS-P25RX

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