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@s-martin
s-martin committed Jun 2, 2024
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Expand Up @@ -9,17 +9,17 @@ I built a [Phoniebox][phoniebox] for my kids, please see my [first blog post][fi

So I decided to rebuilt the Phoniebox with the new-and-shiny version [**3.x** with branch *future3/develop*][future3] and some new hardware parts.

## What I wanted
## What I Wanted

For my kids I wanted to use RFID cards. In addition the box should have buttons for `Play/Pause`, `Next`, `Previous`, `Volume up` and `Volume down`.

I wanted the box portable, so I needed a power bank.

My friend has built a excellent custom-made case which fulfills my needs.
My friend has built a excellent custom-made wooden case which helped to fulfill my needs.

![case](/assets/images/IMG_20191223_232037747.jpg)

That [blog post][blog-instructions] (in German) provided lots of information and I used especially the On/Off description. Thanks for providing that info!
That [blog post][blog-instructions] (in German) provided lots of information and I used especially the On/Off description.

> [!WARNING]
> The info in the mentioned blog post is somewhat dated, so you might need to adjust some things.
Expand Down Expand Up @@ -52,24 +52,40 @@ Excellent resource for the pinning is [pinout.xyz][pinout].

#### Buttons

* Prev: pin 39 (Gnd), pin 16 (GPIO23)
* Next: pin 25 (Gnd), pin 18 (GPIO24)
* Play: pin 20 (Gnd), pin 22 (GPIO25)
* Vol-: pin 29 (GPIO5), pin 30 (Gnd)
* Vol+: pin 31 (GPIO6), pin 34 (Gnd)
* Prev: pin 39 (GND), pin 16 (GPIO23)
* Next: pin 25 (GND), pin 18 (GPIO24)
* Play: pin 20 (GND), pin 22 (GPIO25)
* Vol-: pin 29 (GPIO5), pin 30 (GND)
* Vol+: pin 31 (GPIO6), pin 34 (GND)

#### Miniamp

* Connect the Miniamp to pin 1 (3V), pin 4 (5V), pin 14 (GND), pin 12 (GPIO18), pin 35 (GPIO19), pin 36 (GPIO16), pin 37 (GPIO26), pin 38 (GPIO20) and pin 40 (GPIO21).
* Connect the speakers to the Miniamp (`L-+ R+-`), see also the [datasheet][datasheet-miniamp].
* Connect the Miniamp to Raspberry Pi
* pin 1 (3V)
* pin 4 (5V)
* pin 14 (GND)
* pin 12 (GPIO18)
* pin 35 (GPIO19)
* pin 36 (GPIO16)
* pin 37 (GPIO26)
* pin 38 (GPIO20)
* pin 40 (GPIO21)
* Connect the speakers to the Miniamp (`-L+` and `+R-`), see also the [datasheet][datasheet-miniamp].

![Miniamp](/assets/images/miniamp.jpg)

#### OnOffShim & Power Button

* [Pinout OnOffShim][pinoutonoff]
* Connect the OnOffShim to pin 2 (5V Pwr), pin 6 (GND), pin 7 (GPIO4), pin 11 (GPIO 17)
* Connect Btn1 of OnOffShim to NO (Normal Open) of Power Button, Btn2 to C (Common) and pin 15 (GPIO22) to `+` as well as pin 9 (Gnd) to `-`
* Connect the OnOffShim to Raspberry Pi
* pin 2 (5V Power)
* pin 6 (GND)
* pin 7 (GPIO4)
* pin 11 (GPIO 17)
* Connect Btn1 of OnOffShim to NO (Normal Open) of Power Button
* Connect Btn2 of OnOffShim to C (Common) of Power Button
* Connect pin 15 (GPIO22) of Raspberry Pi to `+` of Power Button
* Connect pin 9 (GND) of Raspberry Pi to `-` of Power Button

### Installation

Expand All @@ -81,42 +97,32 @@ Excellent resource for the pinning is [pinout.xyz][pinout].
And I use the `future3/develop` branch
* I use the following settings
* Don't use IPv6, Bluetooth, Kiosk mode, Autohotspot
* As I don't use the Release branch I need to [build the web app locally][build-webapp]
* As I don't use the Release branch I need to [build the web app locally][build-webapp]. IMPORTANT: install node first (see link)!
* I connected my USB reader before the installation and selected it during install
* Configuring Miniamp according to [instructions][miniamp-config]: enable Miniamp in `/boot/config.txt` with

```bash
dtparam=audio=off
dtoverlay=hifiberry-dac
dtoverlay=vc4-kms-v3d,noaudio
```

* Reboot
* Follow the [audio configuration instructions and checks][audio-instructions]
* **Reboot**
* Install Hifiberry Miniamp using the [provided script][miniamp-install-script]
* ?? Follow the [audio configuration instructions and checks][audio-instructions]
* Install [OnOffShim][onoffshim] software
* Use this one line command: `curl https://get.pimoroni.com/onoffshim | bash`
* Set `daemon_active=1`, `led_pin=22` and `hold_time=1` in file `/etc/cleanshutd.conf`
* ?? Set `daemon_active=1`, `led_pin=22` and `hold_time=1` in file `/etc/cleanshutd.conf`
* TODO weg: sudo apt-get install libczmq-dev
* TODO weg: in src/cli_client: gcc pbc.c -o pbc -lzmq -Wall
* Make sure the original Phoniebox shutdown script is used: Open `sudo nano /usr/bin/cleanshutd` and replace `shutdown -h +$shutdown_delay` with `source ~/RPi-Jukebox-RFID/.venv/bin/activate; ~/RPi-Jukebox-RFID/src/jukebox/run_rpc_tool.py -c host.shutdown; deactivate`. Be aware that `shutdown_delay` has no effect anymore.
* ?? Make sure the original Phoniebox shutdown script is used: Open `sudo nano /usr/bin/cleanshutd` and replace `shutdown -h +$shutdown_delay` with `source ~/RPi-Jukebox-RFID/.venv/bin/activate; ~/RPi-Jukebox-RFID/src/jukebox/run_rpc_tool.py -c host.shutdown; deactivate`. Be aware that `shutdown_delay` has no effect anymore.

Wiring Sketch:

![sketch](/assets/images/IMG_20200111_212542257.jpg)

# Software configuration
## Software configuration & installation

dann so wie hier http://splittscheid.de/selfmade-phoniebox/#miniampsetup

## Software installation
dann so wie hier <http://splittscheid.de/selfmade-phoniebox/#miniampsetup>

Software installation first, so everything can be tested.

7. I configured the sound according to this [description][fix-sound].
8. To use the buttons I configured the GPIO settings according to [this manual][gpio-config], but without the shutdown, because I use the OnOffShim (see later steps). In the file `scripts/gpio-buttons.py` the pins can be configured and (de)activated. I don‘t use recording although the case and the hardware supports it.

1. I configured the sound according to this [description][fix-sound].
1. To use the buttons I configured the GPIO settings according to [this manual][gpio-config], but without the shutdown, because I use the OnOffShim (see later steps). In the file `scripts/gpio-buttons.py` the pins can be configured and (de)activated. I don‘t use recording although the case and the hardware supports it.

# Gotchas, lessons learned, etc. #
## Gotchas, Lessons learned

* It’s really important to solder as good as possible (I’m not very good though). If you have cold solder joints it may or may not work, which can be really annoying.
* Connecting everything together first to test it is really helpful, because you don’t want to assemble everything together in a (tiny) case and then something doesn’t work.
Expand All @@ -132,6 +138,7 @@ Software installation first, so everything can be tested.
[gpioexp]: https://www.az-delivery.de/products/gpio-expansion-board-fur-raspberry-pi?variant=38524730706
[installation]: https://github.com/MiczFlor/RPi-Jukebox-RFID/blob/future3/develop/documentation/builders/installation.md
[build-webapp]: https://github.com/MiczFlor/RPi-Jukebox-RFID/blob/future3/develop/documentation/developers/development-environment.md#steps-to-install
[miniamp-install-script]: https://github.com/MiczFlor/RPi-Jukebox-RFID/blob/future3/develop/documentation/builders/components/soundcards/hifiberry.md
[audio-instructions]: https://github.com/MiczFlor/RPi-Jukebox-RFID/blob/future3/develop/documentation/builders/audio.md#audio-configuration
[miniamp]: https://www.hifiberry.com/shop/boards/miniamp/
[datasheet-miniamp]: https://www.hifiberry.com/docs/data-sheets/datasheet-miniamp/
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