These instructions are derived directly from https://docs.aws.amazon.com/freertos/latest/userguide/getting_started_espressif.html
Flash Raspian to your SD card using Etcher.
Connect to the RaspberryPi using a monitor, keyboard and mouse to perform the initial setup.
Run sudo raspi-config
Configure Networking options to enable Wifi access, and then enable SSH in Interfacing Options.
Change the default pi user password as well for security reasons.
Follow these instructions: https://docs.aws.amazon.com/greengrass/latest/developerguide/gg-config.html
These files will be available on your machine after you have completed the previous step.
cd path-to-downloaded-files
raspberrypi=192.168.1.251
scp greengrass-*-1.5.0.tar.gz pi@${raspberrypi}:/home/pi
scp *-setup.tar.gz pi@${raspberrypi}:/home/pi
SSH into your RasbperryPi and untar the Greengrass Core software and your Core setup files:
cd /home/pi
sudo tar -xzvf greengrass-*-1.5.0.tar.gz -C /
sudo tar -xzvf *-setup.tar.gz -C /greengrass
cd /greengrass/certs/
sudo wget -O root.ca.pem http://www.symantec.com/content/en/us/enterprise/verisign/roots/VeriSign-Class%203-Public-Primary-Certification-Authority-G5.pem
cd /greengrass/ggc/core/
sudo ./greengrassd start
In order for your IoT Things to know how to connect to your Greengrass Core, you must make the following changes:
IoT Core > Greengrass > Groups > YourGreengrassGroup > Settings
Under the Core connectivity information section, ensure that "Manually manage connection information" is selected.
IoT Core > Greengrass > Groups > YourGreengrassGroup > Cores > YourGreengrassGroup_Core > Connectivity
Core endpoints:
- Endpoint: Your RaspberryPi's IP address
- Port: 8883
- Optional connection information: leave blank
Also, ensure that there are no IPv6 Core endpoints, or loopback address endpoints registered. If there are, remove them.
Greengrass logs can be found in /greengrass/ggc/var/log.
The connection manager logs are useful for troubleshooting connectivity issues with devices trying to connect to the RaspberryPi running as the Greengrass Core: tail -f /greengrass/ggc/var/log/system/connection_manager.log