diy_bluetooth_midi_bridge

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diy_bluetooth_midi_bridge [2020/11/01 17:01] – [Web Status Display] wimdiy_bluetooth_midi_bridge [2021/02/06 01:55] (current) – Added actual content for wpa_supplicant.conf rs2000
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 If you don't know how to create or edit a file in the "boot" volume of the micro-sd card: If you don't know how to create or edit a file in the "boot" volume of the micro-sd card:
-  * On MacOS: press <cmd><space> to bring up the search box, then type terminal<enter>. This will get you to a command prompt. Then, to create the ''wpa_supplicant.conf'' file you can type ''nano /Volumes/boot/wpa_supplicant.conf'' to create the file and open an editor. When done editing press ''<control-s>'', then ''<control-x>'', which should save the file and return you to the command prompt. Next, to create the ''ssh'' file, type ''touch /Volumes/boot/ssh''.+  * On MacOS: press <cmd><space> to bring up the search box, then type terminal<enter>. This will get you to a command prompt. Then, to create the ''wpa_supplicant.conf'' file you can type ''nano /Volumes/boot/wpa_supplicant.conf'' to create the file and open an editor. 
 +  * Add the following content to this file (Use the WiFi data of a router that has internet access!): 
 +  * <html><pre><span style="color:darkblue;font-size:80%;">country=US 
 +ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev 
 +update_config=1 
 + 
 +network={ 
 +    ssid="YOUR_NETWORK_NAME" 
 +    scan_ssid=1 
 +    psk="YOUR_PASSWORD" 
 +    key_mgmt=WPA-PSK 
 +}</span> 
 +</pre></html> 
 +  *  When done editing press ''<control-s>'', then ''<control-x>'', which should save the file and return you to the command prompt. Next, to create the ''ssh'' file, type ''touch /Volumes/boot/ssh''.
   * On Windows: There is an excellent article here: [[https://desertbot.io/blog/headless-pi-zero-w-wifi-setup-windows]] that should tell you everything you need to know.   * On Windows: There is an excellent article here: [[https://desertbot.io/blog/headless-pi-zero-w-wifi-setup-windows]] that should tell you everything you need to know.
  
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   * On a PC you can use the free PuTTY program. Hopefully connecting to ''[email protected]'' will work.   * On a PC you can use the free PuTTY program. Hopefully connecting to ''[email protected]'' will work.
   * In some cases finding the device by name won't work. I highly suggest this article in that case: [[https://desertbot.io/blog/headless-pi-zero-w-wifi-setup-windows]]   * In some cases finding the device by name won't work. I highly suggest this article in that case: [[https://desertbot.io/blog/headless-pi-zero-w-wifi-setup-windows]]
- 
 ==== Building the Device ==== ==== Building the Device ====
 Yes! You are finally ready now to carefully follow the excellent [[https://www.raspberrypi.org/downloads/|step-by-step guide]]. **If you plan to add the web-page status display, ** it's slightly easier if you skip the ENABLING READ-ONLY MODE steps for now. If you're not sure, then go ahead with these steps though. It's only a little more trouble to work around. Yes! You are finally ready now to carefully follow the excellent [[https://www.raspberrypi.org/downloads/|step-by-step guide]]. **If you plan to add the web-page status display, ** it's slightly easier if you skip the ENABLING READ-ONLY MODE steps for now. If you're not sure, then go ahead with these steps though. It's only a little more trouble to work around.
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 === Add the Web Content === === Add the Web Content ===
 Assuming you're still logged in from the previous steps, execute the following commands, one step at a time, checking to be sure there are no error messages:  Assuming you're still logged in from the previous steps, execute the following commands, one step at a time, checking to be sure there are no error messages: 
-<code>+<file>
 cd /var/www/html cd /var/www/html
 sudo rm index*.html sudo rm index*.html
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 sudo unzip html.zip sudo unzip html.zip
 ls ls
-</code>+</file>
  
 The output from the last command should look like this: The output from the last command should look like this:
-<code>+<file>
 pi@raspberrypi(rw):/var/www/html$ ls pi@raspberrypi(rw):/var/www/html$ ls
 html.zip  index.html  styles.css html.zip  index.html  styles.css
-</code>+</file>
  
 Next: Next:
-<code>+<file>
 cd /usr/lib/cgi-bin cd /usr/lib/cgi-bin
 sudo wget -O cgi-bin.zip https://wiki.audiob.us/lib/exe/fetch.php?media=wiki:cgi-bin.zip sudo wget -O cgi-bin.zip https://wiki.audiob.us/lib/exe/fetch.php?media=wiki:cgi-bin.zip
 sudo unzip cgi-bin.zip sudo unzip cgi-bin.zip
-ls +sudo chmod +x *.py 
-</code>+ls -l  
 +</file>
  
 The output of the last command should look like this: The output of the last command should look like this:
-<code> +<file> 
-pi@raspberrypi(rw):/usr/lib/cgi-bin$ ls +pi@raspberrypi(rw):/usr/lib/cgi-bin$ ls -l 
-cgi-bin.zip  devicelist.py  reconnect.py +total 12 
-</code>+-rw-r--r-- 1 root root 1149 Oct 31  2020 cgi-bin.zip 
 +-rwxr-xr-x 1 root root 1117 Oct 24 16:37 devicelist.py 
 +-rwxr-xr-x 1 root root  321 Oct 24 16:31 reconnect.py 
 +</file> 
 + 
 +== Permission Changes ==
  
 Create the file that gives the web server permission to run some needed commands. Type ''sudo nano /etc/sudoers.d/010_www-data-nopasswd'' and paste the following into the file: Create the file that gives the web server permission to run some needed commands. Type ''sudo nano /etc/sudoers.d/010_www-data-nopasswd'' and paste the following into the file:
-<code>+<file>
 www-data ALL=(ALL) NOPASSWD: /usr/bin/aconnect www-data ALL=(ALL) NOPASSWD: /usr/bin/aconnect
 www-data ALL=(ALL) NOPASSWD: /usr/local/bin/connectall.rb www-data ALL=(ALL) NOPASSWD: /usr/local/bin/connectall.rb
-</code>+</file>
 Press ''<ctrl-s> <ctrl-x>'' to save and exit. Press ''<ctrl-s> <ctrl-x>'' to save and exit.
 +
 +Another permissions modification: Type ''sudo nano /etc/group'', then find the line that begins with ''audio:'' and make it look //exactly// like this:
 +<file>
 +audio:x:29:pi,www-data
 +</file>
 +Remember to type ''<ctrl-s><ctrl-x>'' when done.
  
 You probably also want to change the time zone on the device since the web display shows the last refresh time. Enter ''sudo raspi-config'', then go to Localization Options > Change Time Zone. You probably also want to change the time zone on the device since the web display shows the last refresh time. Enter ''sudo raspi-config'', then go to Localization Options > Change Time Zone.
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 === If Read-Only File System is in Use === === If Read-Only File System is in Use ===
 Since Nginx requires log files and the Read-Only mod changed the log directory two more steps are needed. First, add a line into /etc/fstab for a new temporary file system. Type ''sudo nano /etc/fstab'' and add a line exactly like the last one below. Then press ''<ctrl-s> <ctrl-x>'' to save and exit. **Be careful!** Don't touch anything else in the file or your system may not boot. Since Nginx requires log files and the Read-Only mod changed the log directory two more steps are needed. First, add a line into /etc/fstab for a new temporary file system. Type ''sudo nano /etc/fstab'' and add a line exactly like the last one below. Then press ''<ctrl-s> <ctrl-x>'' to save and exit. **Be careful!** Don't touch anything else in the file or your system may not boot.
-<code>+<file>
 proc            /proc           proc    defaults          0       0 proc            /proc           proc    defaults          0       0
 PARTUUID=8ea4fe3d-01  /boot           vfat    defaults,ro          0       2 PARTUUID=8ea4fe3d-01  /boot           vfat    defaults,ro          0       2
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   tmpfs           /var/lib/dhcpcd5 tmpfs   nosuid,nodev         0       0   tmpfs           /var/lib/dhcpcd5 tmpfs   nosuid,nodev         0       0
   tmpfs           /var/log/nginx   tmpfs   nosuid,nodev         0       0   tmpfs           /var/log/nginx   tmpfs   nosuid,nodev         0       0
-</code>+</file>
  
 (Optional) Turn off logging to keep from filling up the temporary file system. Run ''sudo nano /etc/nginx/nginx.conf''. Find the two log setting lines and comment them out by placing a "#" mark before them. Then press ''<ctrl-s> <ctrl-x>'' to save and exit. (Optional) Turn off logging to keep from filling up the temporary file system. Run ''sudo nano /etc/nginx/nginx.conf''. Find the two log setting lines and comment them out by placing a "#" mark before them. Then press ''<ctrl-s> <ctrl-x>'' to save and exit.
-<code>+<file>
         # access_log /var/log/nginx/access.log;         # access_log /var/log/nginx/access.log;
         # error_log /var/log/nginx/error.log;         # error_log /var/log/nginx/error.log;
-</code>+</file>
  
 Lastly, invoke the ''ro'' command and then ''sudo reboot''. If all went well, the web page should still display when you go to http://raspberrypi.local. Lastly, invoke the ''ro'' command and then ''sudo reboot''. If all went well, the web page should still display when you go to http://raspberrypi.local.
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 You can also PM @wim on the Audiobus forum if you prefer. 8-) You can also PM @wim on the Audiobus forum if you prefer. 8-)
  
 +
 +{{tag>DIY Do_it_Yourself Raspberry_Pi BLE_Midi Bluetooth MIDI_Hub USB USB_MIDI}}
  
  • diy_bluetooth_midi_bridge.1604210504.txt.gz
  • Last modified: 2020/11/01 17:01
  • by wim