Black HAT Hack3r with PianoHat and DrumHat


#1

Hi!!

I just bought PianoHat and after a short install i enjoyed playing with it!
Now i have a DrumHat and a Black Hat Hack3r and i’m wondering how i could make them work together?

i’m pretty new to linux and raspberry but i try hard :D

Also, if i want to launch PianoHat on boot i could edit rc.local file before the end with
cd /home/pi/pimoroni/pianohat/exemples
Sudo python simple-piano.py
?

Thks in advance for your answer!


#2

You should just be able to plug both HATs onto the BHH, install the Piano HAT and Drum HAT libraries using the one-line-installers, and then run the example scripts in two separate terminal windows/tabs.

My preferred method of choice for running scripts at boot is to use cron with @reboot, as follows:

crontab -e and then add @reboot sudo python /home/pi/myscript.py to your crontab.

Super-simple!


#3

Hi

Thx a lot!
My BHH was a mini one, so i’m thinking on buying à big one cause it’s really small, but hey! It work!

I also made my rpi3 a wireless hotspot (without network connection, but no need) so i can control it with my phone (serverassistant app), no screen needed.

Last question, on cronetab i use 2 command
Sudo python /home/pi/Pimoroni/pianohat/examples/simple-piano.py
Sudo python /home/pi/Pimoroni/drumhat/examples/drums.py

Any way to shorter these commad?
Even if there fine right now…

Thx again!


#4

you can (IMO should) drop the sudo. If your scripts are executable and have an interpreter specified then you can also call them without specifying what command is needed:

~/Pimoroni/pianohat/examples/simple-piano.py
~/Pimoroni/drumhat/examples/drums.py

you could also copy them to a directory inside your home directory, say mycron, and use:

~/mycron/simple-piano.py
~/mycron/drums.py

#5

Hi,

Sorry for the late answer… And Thx for the tips it work great!
I Just checked the “pinout” website to see if i could Add a pHat dac and made my setup on pizero. It seems that the drumhat and pHat dac share 1 pin (gpio 21 i think) Will it be a problem?
Also, on pianohat it’s powered by 5v or 3.3v ?

Thx a lot!


#7

Hi !

I finished my little instrument for all kids at my weeding ^^
nothing fancy but it work very well!
I add a pushbutton to shutdown safely the pi :)