Howto setup rpi3 for CSV reading

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This howto will cover the steps to setup a Rasperrypi for reading CSV stream from RPICT series board.

Hardware and OS

This has been tested using Raspberrypi 3 Model B

Used OS: Raspbian Jessie 2017-06-21-raspbian-jessie.img

If the image from Emoncms is used then this setup is not needed.

Steps

-1-

Download the image from the raspberrypi website. https://www.raspberrypi.org/downloads/raspbian/

-2-

Write the image to the SD card. Follow instructions given by the raspberrypi website.

https://www.raspberrypi.org/documentation/installation/installing-images/

-3-

Once the image written create an empty file called 'ssh' in the boot section of the image.

-4-

Power up the raspberrypi and connect it to the ethernet network.
Access the raspberrypi with ssh.

Linux based OS

This is as simple as issuing.

$ ssh pi@raspberrypi

Use password raspberry

On other systems (windows, ios)

We recommend to use the putty tool. Download here
As above use
hostname: raspberrypi
user: pi
password: raspberry

This will give you access to a terminal window in which you can issue commands on the raspberrypi.

-5-

Run the raspi-config tool 

$ sudo raspi-config

In the menu expand the Filesystem (optional). 

7 Advanced Options
A1 Expand Filesystem

Then disable the login uart 

5 Interfacing Options
P6 Serial

Select No to the login shell question.
Select Yes to the serial port hardware to be enabled question.

-6-

Update the Raspbian OS. 

$ sudo apt-get update
$ sudo apt-get upgrade

-7-

Edit the /boot/config.txt file 

$ sudo nano /boot/config.txt

At the end of the file add the following line: 

dtoverlay=pi3-disable-bt

(note the above will disable bluetooth - if bluetooth is needed do not execute this step and use ttyS0 instead of ttyAMA0 for what follows).

Save and Exit file.

-8-

[OPTIONAL]
Disable hciuart 

$ sudo systemctl disable hciuart

-9-

Reboot 

$ sudo reboot

return to the ssh session again once the raspberrypi up and running again.

-10-

Insert the RPICT board on the RPI. Configure and read from serial port 

$ stty -F /dev/ttyAMA0 raw speed 38400
$ cat /dev/ttyAMA0
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