{"id":529,"date":"2017-08-04T21:56:06","date_gmt":"2017-08-04T19:56:06","guid":{"rendered":"https:\/\/13-37.org\/2017\/08\/midi-biodata-sonification-device-settings-menu-for-the-midi-sprout\/"},"modified":"2019-04-20T09:26:09","modified_gmt":"2019-04-20T07:26:09","slug":"midi-biodata-sonification-device-settings-menu-for-the-midi-sprout","status":"publish","type":"post","link":"https:\/\/leetronics.de\/de\/blog\/2017\/08\/04\/midi-biodata-sonification-device-settings-menu-for-the-midi-sprout\/","title":{"rendered":"MIDI Biodata Sonification Device – Settings menu for the MIDI Sprout"},"content":{"rendered":"

The MIDI Biodata sonification device (also known as MIDI Sprout, by DataGarden) is a great device to make music using plants.<\/p>\n

Here I describe how to apply the firmware of the very similar Biodata Sonification Arduino shield to a „classic“ MIDI Sprout. This includes adding a button to gain access to a settings menu which allows to adjust MIDI-Channel, LED brightness, note scale and finally the good old threshold.<\/p>\n

Sam Cusumano, creator of the MIDI Sprout gave me the idea (or challenge?) to do this:<\/p>\n

„And if you REALLY wanna get funky, you can add a button to A1\/gnd and use\u00a0<\/span>my new codebase which allows users to edit MIDI channel, scale, led \u00a0<\/span>brightness, threshold through a ‚menu system‘ using the leds and the knob.\u00a0<\/span>check it out on my github\u00a0<\/span>https:\/\/github.com\/electricityforprogress\/BiodataSonificationBreadboardKit\u00a0<\/span><\/a>which is an ‚arduino shield‘ but should work with the main biodata board\u00a0<\/span>with perhaps a few code tweaks.“<\/span><\/p>\n

<\/p>\n

Modification<\/h3>\n

Two ways of applying this mod are shown here. On the left side you see the instructions for solderless application. I recommend using the soldered version, but you can easily try it out solderless first. If you don’t have a soldering iron yourself, maybe you know someone who could do this for you.<\/p>\n

Materials and tools required<\/strong><\/p>\n\n\n\n\n
solderless<\/strong><\/td>\nsoldered<\/strong><\/td>\n<\/tr>\n
– ICSP programmer (i.e. USBASP)
\n– 6x male-to-female dupont\/jumper wires
\n– 2x male-to-male dupont\/jumper wires (used as button)<\/td>\n		– ICSP programmer (i.e. USBASP)
\n– 8x female-to-female dupont\/jumper wires
\n– 6x male pin headers
\n– 1x button<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

You’ll also need the AVR toolchain installed to upload a new sketch to the microcontroller. See these tutorials<\/a> on how to install it.<\/p>\n

1. ICSP Header<\/strong><\/p>\n

Most MIDI-Sprouts come without the ICSP header as its not required for normal use. We’ll also use it to connect the button afterwards, so its worth soldering it now!<\/p>\n\n\n\n\n
\n

\"\"<\/a>
no header<\/figcaption><\/figure><\/td>\n
OR<\/strong><\/td>\n\n

\"\"<\/a>
header soldered!<\/figcaption><\/figure><\/td>\n<\/tr>\n
\n

\"\"<\/a>
female-to-male jumper wires to plug into the PCB<\/figcaption><\/figure><\/td>\n
<\/td>\n\n

\"\"<\/a>
USBASP programmer bottom side with pin labels<\/figcaption><\/figure><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n


\n2. Connect ICSP programmer<\/strong><\/p>\n

This step depends on the programmer you’re using. Images are for reference only.<\/p>\n\n\n\n
\n

\"\"<\/a>
improvised ICSP connection<\/figcaption><\/figure><\/td>\n
OR<\/strong><\/td>\n\n

\"\"<\/a>
common ICSP connection<\/figcaption><\/figure><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3. Upload new sketch<\/strong>
\nConnect your ISP programmer to your computer and upload the pre-compiled hex-file from here:<\/p>\n

\n\n
\n
\n
\n
\"Icon\"<\/div>\n
\n

BiodataSonification_MOD.hex<\/a><\/h3>\n
<\/i> 1 Datei(en) <\/i> 27.98 KB<\/div>\n <\/div>\n
\n Download<\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n<\/div>\n

 <\/p>\n

$ avrdude -c usbasp -p atmega328p -U flash:w:BiodataSonification_MOD.hex<\/code><\/p>\n

This is the full firmware of the Arduino Shield. Only the pin button is changed to SCK instead of A1.<\/p>\n

4. Connect button<\/strong><\/p>\n

Disconnect your ISP programmer and connect a button between SCK<\/strong> and GND<\/strong> of the ICSP connector. (Wiring is not correct in these images!)<\/p>\n\n\n\n
\n

\"\"<\/a>
wire as button<\/figcaption><\/figure><\/td>\n
OR<\/strong><\/td>\n\n

\"\"<\/a>
real button<\/figcaption><\/figure><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

5. You’re done.<\/strong>
\nCheck the usage instructions to see how the new menu works!<\/p>\n

If you want to restore the original firmware:<\/p>\n

\n\n
\n
\n
\n
\"Icon\"<\/div>\n
\n

MIDI_Psychogalv_328p_v021.hex<\/a><\/h3>\n
<\/i> 1 Datei(en) <\/i> 20.06 KB<\/div>\n <\/div>\n
\n Download<\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n<\/div>\n

Usage Instructions<\/h3>\n

To enter the menu, press the button once. One of the LEDs starts flashing.\u00a0This first menu times out after 5 seconds when you don’t move the knob.<\/p>\n

By turning the knob, you can select a setting you want to change (see table below). Press the button again to enter the selected mode.<\/p>\n

While adjusting the setting, the MIDI output will continue to work, so you get immediate feedback of changes. Press button again to leave the menu. Once you entered a mode, there is no timeout.<\/p>\n\n\n\n\n\n\n
Threshold<\/span><\/td>\n<\/td>\nSensitivity for the electrodes. Moving the pot away from the off-position will decrease the sensitivity.
\nLEDs do normal effects during adjustment.<\/td>\n<\/tr>\n
Note scale<\/span><\/td>\n<\/td>\nChromatic<\/span>, Major<\/span>, Diatonic Minor<\/span>, Indian<\/span> and Minor scale (white) available. The corresponding LED flashes after entering this setting and the scale can be selected using the knob. Press button to apply and leave the menu.<\/td>\n<\/tr>\n
MIDI Channel<\/span><\/td>\n<\/td>\nSelect MIDI-Channel 1-16 by turning the knob. You’ll need MIDI equipment connected to see changes. No LED effects.<\/td>\n<\/tr>\n
LED Brightness<\/span><\/td>\n<\/td>\nSelect LED effects brightness. From zero to full by using the knob. Blue LED is flashing to indicate the selected brightness.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

All settings are stored in the EEPROM.<\/p>\n

Update<\/h3>\n

now available as ready-made product or DIY kit:<\/p>\n

MIDI Biodata Sonification Device v2.1<\/a><\/p><\/blockquote>\n