Cato Button Operations

This note describes the operation of Cato’s buttons.

Button Identification

• Button 1 (The “Power” / “Sleep” Button) is located LEFT of the word Cato
• Button 2 (The “Bluetooth” / “Peer” Button) is located RIGHT of the word Cato
• The Reset Button (“Bootloader Button”) is located in the lower-right-hand corner of the device, and can be pressed through the flap.

Click Types

• Short (less Than 0.5 seconds)
• Medium (between 0.5 and 3 seconds)
• Long (3 seconds or longer)
• Double (2 short clicks in succession)
• None (Timeout – no button press)

Peer Operation Table (Button 2)

Reference table for all Button 2 behaviors and getting to and from all peer operation states

Initial State	Button Click	Behavior	Resultant State	Description
Idle	Short	Start Peer Selection	Peer Select	Enter mode allowing user to swap between advertising/connected peer IDs
Idle	Long	Start Peer Erase	Peer Erasing	Await a confirmation signal to erase/delete current bond
Peer Select	Short	Cycle Peers	Peer Select	Increments current Peer ID by 1
Peer Select	Medium/None	Confirm Peer Select	Idle	Confirms current Peer ID and swaps to it
Peer Select	Long/Double	Cancel Peer Select	Idle	Reverts Peer ID to value before Peer Selecting and cancel operation
Peer Erasing	Short/Medium/Long/None	Confirm Peer Delete	Idle	Permanently delete bt bond info for current peer and begin discoverable bt advertising
Peer Erasing	Double	Cancel Peer Erase	Idle	Exit the erase operation, return to idle

Sleep

• Double tapping button 1 enters sleep.
• Pressing any button while sleeping wakes from sleep.

Known issue with sleep

• In some cases, putting the device to sleep will catch the LED in an “ON” state
• LED stuck on will drain the battery.
• A fix is in-progress.
• Workaround: wake device, put back to sleep.

Peer Selection (Light Blue)

• Enter peer select by SHORT CLICK of BUTTON 2.
• Cycle Peers while in Peer Select by SHORT CLICK of BUTTON 2.
  • Each time peer is cycled:
  • a light blue LED will flash to indicate the current Peer ID
• Confirm Peer Selection to begin using device
  • Confirm by Timeout (No click required)
  • Confirm by Medium Click
• Once confirmed, the LED will provide a final indicator of its selected Peer ID before moving to its new state

Peer Selection End Results

• Once an Identity is selected, the resulting behavior depends on the prior configuration of that Peer ID.
  • If there is no connection on that peer identity
  • Cato will begin advertising
  • indicated by Fast Blue Flashing
  • If there is a connection on that peer identity
  • If Cato is able to connect
    • it will do so quickly (3 sec).
    • The connected device will be controllable
    • The Cato LED will turn off (or indicate charge status once every 20s / forever if plugged in).
  • If Cato cannot connect
    • it will enter the “Bluetooth No Connection” state
    • indicated by Blue-Red Fade
• In the Bluetooth No Connection State, a Peer Erase is required to connect the device

Peer Erase

• Press and hold the Bluetooth Button (Button 2) until the LED begins to indicate the “Peer Erasing State” (Breathing Yellow).
• Select one of the following two options:
  • Confirm Peer Erase by {Short Tap, Medium Tap, Long Tap, or Timeout} of the Bluetooth Button
  • Cato will delete existing bond information (though your MyCato preferences will still be saved)
  • Cato will begin advertising and will continue until it receives a pairing request
  • Cancel the operation by Double Tap of the Bluetooth Button
  • Your device will return to the Non-Discoverable state
  • (and will continue trying to connect to the original device)