ChannelGlow

ChannelGlow gives you a clear, read-only view of sensor channels hosted on ThingSpeak.

Connect a channel
• Add a public channel with its numeric Channel ID
• Add a private channel with its channel-level Read API Key
• Save multiple channels and move between them quickly
• Test the connection before a private key is stored

See what your sensors are doing
• Discover all declared fields automatically, from field1 through field8
• Review the latest values in a clean dashboard
• Open numeric history charts with honest gaps for missing values
• Inspect complete raw values when a field is not numeric
• Choose 2-hour, 8-hour, 24-hour, or latest-8,000-entry windows

Make the dashboard yours
• Rename fields and add units
• Choose colors and decimal precision
• Hide fields you do not need
• Add display-only lower and upper thresholds
• Export the downloaded window as a safe UTF-8 CSV file

Designed for trust
ChannelGlow connects directly from your device to api.thingspeak.com over HTTPS. Private Read API Keys are stored in Apple Keychain with device-only protection and are never placed in request URLs, exports, screenshots, or accessibility labels. The app does not require or create a ChannelGlow account, and has no advertising, tracking, analytics, or credential-relay server.

A bounded last-successful response can remain on your device for clearly labeled offline viewing. Removing a saved channel removes its local profile, cached response, presentation settings, and saved Read API Key; it does not change or delete anything on ThingSpeak.

The built-in demo uses deterministic fictional greenhouse readings, so you can explore ChannelGlow without an account or credential.

ChannelGlow is an independent application and is not affiliated with or endorsed by The MathWorks, Inc. ThingSpeak is a trademark of The MathWorks, Inc. You must have permission to access every channel you add and remain responsible for the service terms and license that apply to your use.