Keylock click carries a processed sealed key lock mechanism that can be set in three different positions. The click is designed to run on either 3.3V or 5V power supply. It communicates with the target microcontroller over the PWM, INT, and AN pin on the mikroBUS??? line.

The key can be removed from the lock in any of the three positions. The package contains two keys and one protective cap. 

Keylock features

The contact mechanism provides unequaled logic-level reliability and smoother, positive detent actuation.

Detent mechanism, with its spring-operated steel ball, gives crisp, positive action for accurate switch setting.

Specifications

Pinout diagram

This table shows how the pinout on Keylock click corresponds to the pinout on the mikroBUS??? socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
Output position 1	1	1	AN	PWM	16	2	Output position 2
	NC	2	RST	INT	15	3	Output position 3
	NC	3	CS	TX	14	NC
	NC	4	SCK	RX	13	NC
	NC	5	MISO	SCL	12	NC
	NC	6	MOSI	SDA	11	NC
Power supply	+3.3V	7	3.3V	5V	10	+5V	Power supply
Ground	GND	8	GND	GND	9	GND	Ground

Programming

Code examples for Keylock click, written for MikroElektronika hardware and compilers are available on Libstock.

Code snippet

This is a simple example of how Keylock click works, depending on the state of the Keylock click the appropriate position will be detected.

01 uint8_t state;
02 char txt[20];
03 
04 void systemInit()
05 {
06     ANCON0 = 0x00;
07     ANCON1 = 0x00;
08     ANCON2 = 0x00;  
09    UART1_Init(9600);
10 }
11 
12 void Keylock_Init()
13 {
14     KEYLOCK_STATE_1_Direction = 1;
15     KEYLOCK_STATE_2_Direction = 1;
16     KEYLOCK_STATE_3_Direction = 1;
17 }
18 
19 void Keylock_Task()
20 {
21     state =  KEYLOCK_STATE_1*1 + KEYLOCK_STATE_2*2 + KEYLOCK_STATE_3*3;
22     UART1_Write_text("Keylock is in state:");
23     IntToStr(state,txt) ;
24     UART1_Write_Text(txt);
25     UART1_Write_Text( "rn" );
26     delay_ms(500);
27 }
28 
29 void main()
30 {
31     systemInit();
32     Keylock_Init();
33 
34    while( 1 )
35     {
36             Keylock_Task();
37     }
38 }