![]() Raspbian Jessie no longer has the /etc/inittab file and replaces it instead with a mechanism called systemd and you use a tool called systemctl to enable / disable services. #T0:23:respawn:/sbin/getty -L ttyAMA0 115200 vt100 Jessie / Stretch / Buster and Raspberry Pi 3 & 4 # disabling it) with a “#” and save it, so that it results in: #Spawn a getty on Raspberry Pi Serial line You need to comment the last line out (i.e. Scroll down the bottom and you will find the lines: #Spawn a getty on Raspberry Pi Serial line In an LXTerminal window type: $ sudo nano /etc/inittab To do this, we need to edit /etc/inittab. ![]() To use the Sleepy Pi we need to disable this. ![]() Raspbian allows you to login using the serial port. We need to change that using the following steps. These pins are:īy default Raspbian has exclusive access to the serial pins to output status, debug data and logging in. The Arduino processor on the Sleepy Pi can be programmed directly from the Raspberry Pi using the serial GPIO lines on the RPi and another GPIO line to reset the the Arduino to allow automatic code upload. (click Y to any dependencies) Setting up the Serial Pins # Now install the Arduino IDE with: $ sudo apt-get install arduino Note the dist-upgrade will ensure that you have the latest versions of RPi.GPIO which will be required later. ![]() If you haven’t already done so, it’s a good idea to ensure that your Raspbian is up to date by opening up an LXTerminal window and executing the following: $ sudo apt-get update The first step is to load the Arduino environment onto the Raspberry Pi. The Arduino processor on the Sleepy Pi can be programmed directly from the Arduino IDE running on the Raspberry Pi. Following the principals shown here, it should be possible to apply these same modifications to other Raspberry OS’s. The following instructions relate to installation on the standard Raspberry Pi Operating System (OS) Raspbian. The script has already set this up for you. If you have used the Sleepy Pi setup script you DO NOT need to do this. ![]()
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