I used to have a working RS485 Shield on my raspberry. however when I try to setup this same shield on the latest raspian I have problems:
from the guide: http://learn.linkspr...shield-for-rpi/
I am supposed to install python (which is already installed by default)
sudo apt-get install python-pip
then sudo pip install wiringpi
There I get an error: python.h not found ?
Disable log in from the serial port:
$ sudo nano / etc / inittab
and comment out ” T0: 23: respawn :/ sbin / getty-L ttyAMA0 115200 vt100″
--> /etc/inittab is no longer present on latest raspian ?? Is this really required ?
I can communicate thru the RS485 port but after 2-3 serial commands it does not work anymore ?
Any advice ?