A HomeKit Lock Mechanism.

Type	Device Type
4	Lock Mechanism

The following configuration is available for lock mechanisms:

Section	Key	Description
Actions	"0", "1" etc.	The actions performed by the accessory
Inching Time	"i"	Time period before returning accessory to previous state
State & Status Inputs	"f[n]" & "g[n]"	Inputs that manage accessory state
ICMP Ping Inputs	"q[n]" & "p[n]"	Ping inputs that manage accessory state
Accessory Notifications	"m"	Notifications to send to another accessory
Initial State	"s"	State a lock accessory enters on boot
Actions on Boot	"xa"	Enable / Disable execution of accessory actions on boot

Example

{
  "a":[{
    "t":4,
    "i":3,
    "0":{"r":[{"g":4,"v":1,"i":0.5}]},
    "1":{"r":[{"g":4}]},
    "b":[{"g":5,"p":0,"i":1,"t":0}]
  }]
}

This is an example of a lock mechanism with an external push button ("t":4). The Inching Time of the accessory has bee set to 3 seconds ("i":3), causing the accessory to automatically re-lock, 3 seconds after being unlocked. The lock mechanism is controlled using GPIO 4. The external push button is connected to GPIO 5. With no pull-up ("p":0), inverted input ("i":1) and single press that is opposite to the default ("t":0`).

Actions

A lock mechanism has two actions.

Action	Press	Description
"0"	UNLOCK	(default)
"1"	LOCK

The Digital Outputs "r": [{}] for each should be configured to attain the desired state.

Accessory Notifications

The list of notifications "m" supported by a lock mechanism are as follows:

Value	Notification
0	Lock UNLOCK (default)
1	Lock LOCK

Accessory notifications can be included as part of an action definition. When an action occurs any one of the above notifications can be sent to another accessory using the "m" option within the action object.

See the general Accessory Notifications section for details of how to configure these notifications.

State and Status Inputs

State inputs "f[n]" & Status Inputs "g[n]" are supported by this accessory. The supported list is:

Key	Action
"f0"	Perform action "0" (Unlock)
"f1"	Perform action "1" (Lock)
"g0"	Set accessory state to Unlock
"g1"	Set accessory state to Lock

Refer to State Inputs for more detail and examples.

ICMP Ping Inputs

ICMP Ping inputs "p[n]" and "q[n]" are supported by this accessory. The supported list is:

Key	Action
"p0"	Perform action "0" (Unlock)
"p1"	Perform action "1" (Lock)
"q0"	Set accessory state to Unlock
"q1"	Set accessory state to Lock

Refer to ICMP Ping Inputs for more detail.

Initial State

The Initial State key is supported by this accessory. Refer to Initial State for more details.

Key	State	Description
"s"	0	UNLOCKED
	1	LOCKED (default)
	4	Defined by fixed state inputs
	5	Last state before restart
	6	Opposite to last state before restart