ios Wall Tablet

iOS app that can be controlled via MQTT for use as a wall tablet.

Settings to enable on the iOS device

Guided Access

Guided access allows you to lock down access to only 1 app (this app) and stops the display locking. You can close the app by entering a 4 digit passcode.

1. Open the Settings app.
2. Go to Accessibility.
3. Scroll down and tap Guided Access.
4. Toggle Guided Access to ON.
5. Tap Passcode Settings to:
   • Set a passcode to control Guided Access.
6. Set Display auto-lock to 'Never'
7. You can then open the MQTT Kiosk app and triple-press the home lock button to enable guided access.

Reduce White Point

iOS doesn't allow you to programatically turn off the display. To overcome this, we can enable the Reduced White Point accessibilty feature. This will allow the app to dim brightness down to nearly 0%.

1. Open the Settings app.
2. Navigate to Accessibility.
3. Tap Display & Text Size.
4. Scroll down and toggle Reduce White Point to ON.
5. Move the intensity slider to 100%