My build with RFID card reader and TFT screen.

[cowfeet]

Thank you for the huge amount of work you must have put into this project.

I've used the last month getting a TFT screen and a RFid card reader to work. I can only program very simple things in Arduino, so most is copy and paste. It was quite tough to get the PN532 working and find out how to make a font with selected items from "Material Design Icons".

I will proberly be using it 3 places in my apartment, so I've also made a PCB that was shipped from jlcpcb today. Panelized I get 10 boards for $12 shipped to Denmark. I can use the rest of the boards in other projects (If it works :-) ).

While I wait for the PCB's (2-3 weeks) and some components from AliExpress I will take a little break from the project.

There is still a lot of things to do..

Thanks again.

Ole "Cowfeet"

[Resinchem]

Wow! That is outstanding work... and takes my project to the next level! Congrats!

I've continued to add on to my project as well. One of my main sources of music is SiriusXM... but I wasn't able to stream directly to the amp without using a phone and bluetooth or the Sirius web app w/DLNA or a physical USB cable. So I spent a number of weeks researching and working to create my own local SiriusXM streaming server and initially a Home Assistant dashboard for selecting stations.

But that meant I still had to go to the Home Assistant dashboard to change stations (and I channel surf quite a bit). I did toy with the idea of a tag reader for that purpose but opted to add a standalone ILI9341 touch screen to allow me to easily switch stations. Using this I can put the amp in standby, wake the system by tapping the touchscreen and then directly play any of my favorite Sirius XM stations directly to the amp. I hope to have a YouTube video out on these latest updates in a couple of weeks:

Keep me advised on your progress. I'll be anxious to see the completed project!

[cowfeet]

Yees :-) Another Amp video in the pipeline :-) I'm looking forward to learn about the touch display.

I might have discovered a little error. The "hidden" standby/power button key. When I use a 12k or 12.2k resistor I get a mute signal. But when I use a 10k or 10.22k resistor I get the hidden standby/power signal. Different firmware or you have mistaken a 220R resistor with a 2.2k?

I will be back when my amp/streamer is "finished".

[Resinchem]

Yep... you are 100% correct and I discovered the same thing in my final build. I think that when I was working on the breadboard version, I had all sorts of resistors laying around and probably had actually used a 220R when I thought I was using a 2.2K. I was trying to create a mute button but didn't have a 12K resistor so I thought I was using a 10K + 2.2K and I thought I had discovered a 'hidden' standby option. So I documented it and when I built the final version, I actually used the 2.2K and found out the same thing you did... it was a second mute button!

At the time, I had already created the blog article and didn't think about it as I wrote it as I was creating the build and before I discovered the issue. I really should go back and update the blog article with that correction. Thanks for reminding me...

(This has now been corrected in the blog article)