Flesh out my_secrets instructions for picam with comprehensive setup guide

src/ac_training_lab/picam/README.md

@@ -116,6 +116,61 @@ cp my_secrets_example.py my_secrets.py
 
 Fill in the necessary information (e.g., via `nano my_secrets.py`). Keep in mind this will store the credentials in plain-text format, so try to keep your Pi login secure and restrict the access scope for the credentials as much as possible.
 
+### Required Configuration Variables
+
+#### `LAMBDA_FUNCTION_URL`
+The AWS Lambda Function URL for the YouTube streaming service. This Lambda function handles YouTube API authentication and stream management.
+
+**Setup Steps:**
+1. Deploy the [streamingLambda](https://github.com/AccelerationConsortium/streamingLambda) service to your AWS account
+2. The deployment will provide you with a Function URL that looks like: `https://your-unique-id.lambda-url.region.on.aws/`
+3. Use this URL as your `LAMBDA_FUNCTION_URL`
+
+**Note:** The Lambda function requires YouTube API credentials to be set up in AWS (stored in S3). See the streamingLambda repository for detailed deployment instructions.
+
+#### `CAM_NAME`
+A descriptive name for this specific camera device. This appears in YouTube broadcast titles and helps identify individual cameras when you have multiple devices.
+
+**Examples:** `"PiCam-01"`, `"LabCam-A"`, `"MainCamera"`
+
+#### `WORKFLOW_NAME`
+**CRITICAL:** This must be **unique** across all your streaming devices to prevent conflicts.
+
+The workflow name is used to:
+- Create and organize YouTube playlists
+- Identify which streams to end/restart
+- Group related video streams
+
+**Requirements:**
+- Must be unique across all devices (see [Issue #290](https://github.com/AccelerationConsortium/ac-dev-lab/issues/290))
+- Keep it concise due to YouTube character limits
+- Use descriptive names for your experimental setup or location
+
+**Examples:** `"SDLT-Toronto-001"`, `"MyLab-Setup-A"`, `"AC-Synthesis-Bench"`
+
+#### `PRIVACY_STATUS`
+Controls the visibility of your YouTube live stream:
+- `"private"` - Only you can view (requires YouTube account login)
+- `"public"` - Anyone can find and view the stream
+- `"unlisted"` - Anyone with the link can view, but it won't appear in search results
+
+**Recommendation:** 
+- Use `"unlisted"` for lab monitoring. This provides controlled access while keeping streams discoverable by your team.
+- If you use `"private"`, you must provide access by adding a Google account for each person.
+- Each person added to the channel will be able to see all videos in the channel.
+- With `"unlisted"`, you can share specific playlists or videos individually.
+
+#### Camera Orientation Settings
+- `CAMERA_VFLIP` - Set to `True` to flip the camera image vertically
+- `CAMERA_HFLIP` - Set to `True` to flip the camera image horizontally
+
+Adjust these based on your camera mounting orientation to ensure the video appears right-side-up.
+
+### Related Resources
+- [streamingLambda Repository](https://github.com/AccelerationConsortium/streamingLambda) - AWS Lambda service for YouTube streaming
+- [Issue #290](https://github.com/AccelerationConsortium/ac-dev-lab/issues/290) - Workflow name uniqueness requirements
+- [YouTube Hardware Streams](https://www.youtube.com/@ac-hardware-streams) - Example of equipment monitoring streams
+
 
 
 ## Dependencies

src/ac_training_lab/picam/my_secrets_example.py

@@ -1,10 +1,32 @@
+# AWS Lambda Function URL - Required for YouTube streaming
+# This URL is obtained by deploying the streamingLambda service to AWS.
+# See: https://github.com/AccelerationConsortium/streamingLambda
+# The Lambda function handles YouTube API calls to create and manage live streams.
 LAMBDA_FUNCTION_URL = "your_Lambda_function_url"
+
+# Camera Name - Used for identifying this specific camera device
+# This appears in the YouTube broadcast title alongside the workflow name and timestamp.
+# Examples: "PiCam-01", "LabCam-A", "MainCamera"
 CAM_NAME = "your_camera_name"
+
+# Workflow Name - Used for organizing streams into playlists
+# IMPORTANT: This must be UNIQUE across all devices to avoid conflicts.
+# The workflow name is used to:
+# - Create/find YouTube playlists
+# - End streams for this specific workflow
+# - Organize videos by experimental setup or location
+# Keep it short (YouTube has character limits) and descriptive.
+# Examples: "SDLT-Toronto-001", "MyLab-Setup-A", "AC-Synthesis-Bench"
+# Related issue: https://github.com/AccelerationConsortium/ac-dev-lab/issues/290
 WORKFLOW_NAME = "your_workflow_name"
+
+# YouTube Privacy Status - Controls who can view the live stream
+# Options: "private" (only you), "public" (anyone), "unlisted" (anyone with link)
+# For lab monitoring, "unlisted" is often preferred for controlled sharing.
 PRIVACY_STATUS = "private"  # "private", "public", or "unlisted"
 
 # Camera orientation settings
-# Set to True to flip the camera image vertically
+# Set to True to flip the camera image vertically (rotate 180° around horizontal axis)
 CAMERA_VFLIP = True
-# Set to True to flip the camera image horizontally
+# Set to True to flip the camera image horizontally (mirror image)
 CAMERA_HFLIP = True