Is it expected that the controller board starts generating heat once you've connected the battery?

The connector appears to be upside down, when compared to the instruction pictures. And one would expect the black cable to go to ground.

I am trying to create the environment of the workshop in eu-central-1. Fixed some issues in cdk_app.py and static_site_construct.py (listed in an other issue). The application starts to create the stack however it fails with this error message:

28/99 | 3:32:46 PM | CREATE_FAILED | AWS::CloudFront::Distribution | StaticSite/SiteDistribution/CFDistribution (StaticSiteSiteDistributionCFDistribution500D676B) The specified SSL certificate doesn't exist, isn't in us-east-1 region, isn't valid, or doesn't include a valid certificate chain. (Service: AmazonCloudFront; Status Code: 400; Error Code: InvalidViewerCertificate; Request ID: 118a47d5-6e62-43ec-9ef8-74f18170b8a1)
new CloudFrontWebDistribution (/tmp/jsii-kernel-8eVR2P/node_modules/@aws-cdk/aws-cloudfront/lib/web_distribution.js:338:30)
_ obj._wrapSandboxCode (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7761:49)
_ Kernel._wrapSandboxCode (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:8221:20)
_ Kernel._create (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7761:26)
_ Kernel.create (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7508:21)
_ KernelHost.processRequest (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7296:28)
_ KernelHost.run (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7236:14)
_ Immediate.setImmediate [as _onImmediate] (/home/ec2-user/environment/connected-drink-dispenser-workshop/deploy/.env/lib/python3.6/dist-packages/jsii/_embedded/jsii/jsii-runtime.js:7239:37)
_ runCallback (timers.js:705:18)
_ tryOnImmediate (timers.js:676:5)
_ processImmediate (timers.js:658:5)

I assume the problem is that it tries to use the ssl certificate in us-east-1 which is available in eu-central-1. I configured Region=eu-central-1 in config.json and fixed the constant in cdk_app.py. I cannot find any other occurence of "us-east-" in the sources but the application seems to get this information from somewhere.

Thanks for your presentation today. Probably more fun than I've had at a conference session. I guess that reveals how little I get out. :-)

Runing Python 3.8 on Mac and seeing this error after installing all the dependencies and trying to run cdk synth:

(awscli) 8c859026bc23:deploy causey$ cdk synth
Traceback (most recent call last):
  File "cdk_app.py", line 12, in <module>
    from aws_cdk import core
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/aws_cdk/core/__init__.py", line 406, in <module>
    import jsii
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/jsii/__init__.py", line 4, in <module>
    from ._runtime import (
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/jsii/_runtime.py", line 6, in <module>
    from jsii import _reference_map
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/jsii/_reference_map.py", line 6, in <module>
    from ._kernel.types import JSClass, Referenceable
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/jsii/_kernel/__init__.py", line 15, in <module>
    from jsii._kernel.providers import BaseProvider, ProcessProvider
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/jsii/_kernel/providers/__init__.py", line 2, in <module>
    from jsii._kernel.providers.process import ProcessProvider
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/jsii/_kernel/providers/process.py", line 15, in <module>
    import cattr  # type: ignore
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/cattr/__init__.py", line 2, in <module>
    from .converters import Converter, UnstructureStrategy
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/cattr/converters.py", line 3, in <module>
    from ._compat import (
  File "/Users/causey/.pyenv/versions/awscli/lib/python3.8/site-packages/cattr/_compat.py", line 86, in <module>
    from typing import _Union
ImportError: cannot import name '_Union' from 'typing' (/Users/causey/.pyenv/versions/3.8.0/lib/python3.8/typing.py)
Subprocess exited with error 1

Any ideas? Thanks!

At 4. Connect the Microcontroller to Your Laptop and Test Serial Communication the documentation shows the LED ring lit up. In almost all cases the LED ring did not turn on, leaving the participant puzzled since they though something was not working.
It would be better to show a picture with the LED ring off.

Attempting to create user resources errors out with the following:

[WARNING] ... Error calling iam.get_account_password_policy() (will retry) for user cdduser, error: An error occurred (NoSuchEntity) when calling the GetAccountPasswordPolicy operation: The Password Policy with domain name ACCOUNT_ID cannot be found.

Need to add test for NoSuchEntity when getting the accounts password policy and if triggered, create a policy that aligns with the workshop policy.

reference to #11

I found following bugs when running cdk synth:

• cdk_app.py doesn't use the configured region but the hardcoded us-east-1 (line 60)
• static_site_construct.py uses an invalid parameter called origin_access_identity_id when initializing SourceConfiguration (line 129)

Hi!

I forgot/lost some data needed to login to my aws console created on the workshop. I tried to get it from the url your provided on the workshop (wa.....io) however this page doesn't work anymore. Is it only a temporary error on the page? If not how can I get my account details again?

When users login in for first time and resource creation is kicked off, the waiting for resource times out. In some cases, the creation may have completed successfully, but in other cases, the Cloud9 environment was not created.

This does not seem to be an issue with low resource creation load, even with a lot of created resources.

• Identify issue
• resolve issue and test
• verify that resource deletion works (increase timeout on Lambda to 15m)

To complete the workshop content for others.

If you've completed a dispenser, modified or built your own, or used one at a workshop, please post your pictures here. GitHub doesn't support video embedding, but links to YouTube are fine.

All posts will be moderated for content.

Dispenser app should require a password. Also, field should be validated against E.164 to enforce correct country codes.