User
Manual
V
ersion 1.21 December, 2018
37
copyright 2018 EVTV LLC
HOW MUCH DOES AMAZON AWS IOT CORE COST?
Amazon offers free accounts for 12 months on IoT Core with a limit of
250,000 messages per month. Unfortunately, that’s about one day’s worth of
Battery Display traffic.
With one Battery Display configured as a MQTT SENDER and a second
display as a MQTT RECEIVER, you will generate about 10,368,000
messages per month. Currently Amazon pricing is $1 per million messages
so about $11 per month.
The Battery Display sends an MQTT update message every 500 ms or twice
per second.
TO CREATE AN AMAZON AWS IOT CORE
ACCOUNT
1. Log into Amazon AWS. You may need to create an account with AWS.
2. Select
SERVICES
at the top of screen.
3. Select
AWS IoT Core
.
4. On the left menu,
Get Started
(Only
necessary if you've never used IoT before)
5. At the bottom left select
Settings
6. A
Custom end point URL
will be displayed. Copy this to your clipboard.
7. Create a file on your PC named
aws_url
and paste the custom endpoint
URL as the first (and only) line of this text file. Copy this file to a USB
thumb drive named
BATTERY
.
