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L8smartlight l8 smartlight objc SDK

1. Installation:

  1. Download the project.

  2. Copy L8SDk folder in to your source code folder.

Note L8SDK includes some very commond libraries used in ios development and you could have some of them in to your project. All required libraries by L8SDK are included in /libraries folder.

2. Quick start:

With L8SDK installed in to your project you have to import l8_sdk_objc.h, TIBLECBKeyfob.h, BluetoothL8.h and ColorUtils.h in your main class in .h or .m, it depends of properties, vars and so on. We have chosen a UIViewController in this guide but you can use your UIApplicationDelegate or a singletone class for example, it depends of the design of your app.

In this way, in our MainViewController.h we have:

#import <UIKit/UIKit.h>

#import "TIBLECBKeyfob.h"

@interface MainViewController : UIViewController<TIBLECBKeyfobDelegate>

@property (nonatomic,strong) NSArray *l8Array; //here we store L8 instances



#import "MainViewController.h"
#import "l8_sdk_objc.h"
#import "ColorUtils.h"
#import "TIBLECBKeyfob.h"
#import "BluetoothL8.h"

@interface MainViewController ()

@property (nonatomic,strong) TIBLECBKeyfob *t; //We connect to l8 through TIBLECBKeyfob 


@implementation MainViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    return self;

- (void)viewDidLoad
    self.t = [[TIBLECBKeyfob alloc] init];   // Init TIBLECBKeyfob class.
    [self.t controlSetup:1];                 // Do initial setup of TIBLECBKeyfob class.
    self.t.delegate = self;                  // set delegate 

    [super viewDidLoad];
    [self initConnection];                  //We have to wait one second beacuse CoreBluetooth must be ready before try to connect to l8 device

-(void)initConnection{                      //you can wait one secand in this way
    double delayInSeconds = 1.0; 
    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
    dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
        [self connectToL8];     //connect to L8


//we have to implement the following delegate methods

    NSLog(@"Connecting with l8...");
    if (self.t.activePeripheral)                                                   //Checks if we have already any connection
            [[self.t CM] cancelPeripheralConnection:[self.t activePeripheral]];   //We cancel any previous connection
    if (self.t.peripherals)
        self.t.peripherals = nil;
    [self.t findBLEPeripherals:10];                                              //Scans during 10 seconds for L8 devices
    BluetoothL8 *l8Bluetooth=[[BluetoothL8 alloc]init];                          //Instantiates a BluetoothL8 and set TIBLECBKeyfob
    self.l8Array=[[NSMutableArray alloc] initWithObjects:l8Bluetooth, nil];     //at this point we are not connected to an L8 device, we have to wait for keyfobReady invocation

-(void) keyfobReady{
    NSLog(@"bt ready");
    id<L8> l8=[self.l8Array lastObject];
    [l8 clearMatrixWithSuccess:^{NSLog(@"matrix cleared");} failure:^(NSMutableDictionary *result) {
        NSLog(@"Error matrix cleared");
    }];                                                  //this is a clear matrix operation.  
    for(int i=0;i<[[self.t userPeripherals] count];i++){
        if([[[[self.t userPeripherals] objectAtIndex:i] valueForKey:@"isUserChecked"] isEqualToString:@"YES"]){         //by default all detected device are select
            CBPeripheral * activePeripheralUser = [[[self.t userPeripherals] objectAtIndex:i] valueForKey:@"peripheral"];
            [self.t L8SL_PrepareForReceiveDataFromL8SL:activePeripheralUser];             //Prepares to receive from L8 device
    //At this point we are ready to operate with our L8 device

-(void)configUpdated:(NSData *)config{




-(void)accelerometerValuesUpdated:(char)x y:(char)y z:(char)z{


-(void)processDataFromPeripheral:(NSData *)data{
    NSLog(@"data l8: %@",data);


3. Interact with L8:

The followig examples are based on code above. We need a delegate of L8, it could be BluetoothL8 or RestfulL8 (simulator), in this case our example use a real L8 device:

id<L8> l8=[self.l8Array lastObject];

Set Super led:

//All code block types are defined in l8_sdk_objc.h

  L8VoidOperationHandler v = ^() {

L8JSONOperationHandler f = ^(NSMutableDictionary *r) {
            NSLog(@"failure: %@", r);

 [l8 setSuperLED:[UIColor yellowColor] withSuccess:v failure:f];

Set led (x,y)

 [self.l8 setLED:CGPointMake(0, 0) color:[UIColor cyanColor] withSuccess:v failure:f];

Clear led (x,y)

[l8 clearLED:CGPointMake(7, 7) withSuccess:v failure:f];

Read led (x,y)

 L8ColorOperationHandler c = ^(UIColor *result) {
            NSLog(@"success: %@", [result stringValue]);

  [l8 readLED:CGPointMake(2, 3) withSuccess:c failure:f];

#### Read superLed

 L8ColorOperationHandler c = ^(UIColor *result) {
            NSLog(@"success: %@", [result stringValue]);
     [l8 readSuperLEDWithSuccess:c failure:f];

Clear matrix

[l8 clearMatrixWithSuccess:v failure:f];

Set matrix

 NSString *check = @"#5cff5c-#60f83f-#5cff5c-#5cff5c-#5cff5c-#5cff5c-#5cff5c-#5cff5c-#00ff00-#60f83f-#60f83f-#60f83f-#00ff00-#00ff00-#ffffff-#ffffff-#60f83f-#60f83f-#60f83f-#00ff00-#ffffff-#ffffff-#ffffff-#ffffff-#34b918-#34b918-#34b918-#34b918-#ffffff-#ffffff-#34b918-#34b918-#ffffff-#ffffff-#34b918-#ffffff-#ffffff-#ffffff-#34b918-#34b918-#34b918-#ffffff-#ffffff-#ffffff-#ffffff-#34b918-#34b918-#03a603-#03a603-#03a603-#ffffff-#ffffff-#03a603-#03a603-#03a603-#03a603-#017001-#017001-#017001-#ffffff-#017001-#017001-#017001-#017001-#3dfa3d";
    NSArray *subStrings = [check componentsSeparatedByString:@"-#"];
    [l8  setMatrix:subStrings withSuccess:^{NSLog(@"send Ok");} failure:^(NSMutableDictionary *result) {
        NSLog(@"set Matrix ERROR");

Create animations

       NSMutableArray *colorMatrix1 = [NSMutableArray arrayWithCapacity:8];
        for (int i = 0; i < 8; i++) {
            [colorMatrix1 addObject:[NSMutableArray arrayWithCapacity:8]];
            for (int j = 0; j < 8; j++) {
                [[colorMatrix1 objectAtIndex:i] addObject:[UIColor redColor]];
        L8Frame *frame1 = [[L8Frame alloc] init];
        [frame1 setColorMatrix:colorMatrix1];
        [frame1 setDuration:100];
        NSMutableArray *colorMatrix2 = [NSMutableArray arrayWithCapacity:8];
        for (int i = 0; i < 8; i++) {
            [colorMatrix2 addObject:[NSMutableArray arrayWithCapacity:8]];
            for (int j = 0; j < 8; j++) {
                [[colorMatrix2 objectAtIndex:i] addObject:[UIColor blueColor]];
        L8Frame *frame2 = [[L8Frame alloc] init];
        [frame2 setColorMatrix:colorMatrix2];
        [frame2 setDuration:100];
        NSMutableArray *colorMatrix3 = [NSMutableArray arrayWithCapacity:8];
        for (int i = 0; i < 8; i++) {
            [colorMatrix3 addObject:[NSMutableArray arrayWithCapacity:8]];
            for (int j = 0; j < 8; j++) {
                [[colorMatrix3 objectAtIndex:i] addObject:[UIColor yellowColor]];
        L8Frame *frame3 = [[L8Frame alloc] init];
        [frame3 setColorMatrix:colorMatrix3];
        [frame3 setDuration:200];
        L8Animation *animation = [[L8Animation alloc] init];
        animation.frames = [NSMutableArray arrayWithObjects:frame1, frame2, frame3, nil];
        [l8 setAnimation:animation withSuccess:v failure:f];

Read L8 data (battery level, memory and so on)

        L8IntegerOperationHandler i = ^(NSInteger result) {
            NSLog(@"success: %d", result);
        L8BooleanOperationHandler b = ^(BOOL result) {
            NSLog(@"success: %@", result? @"Y": @"N");
        L8VersionOperationHandler r = ^(L8Version *result) {
            NSLog(@"success: %d %d", result.hardware,;

        [l8 readBatteryStatusWithSuccess:i failure:f];
        [l8 readButtonWithSuccess:i failure:f];
        [l8 readMemorySizeWithSuccess:i failure:f];
        [l8 readFreeMemoryWithSuccess:i failure:f];
        [l8 readBluetoothEnabledWithSuccess:b failure:f];
        [l8 readVersionWithSuccess:r failure:f];

Read data from sensors

        [l8 readSensorsStatusWithSuccess:^(NSArray *result) {
            NSLog(@"sensors %@", result);
        [l8 readSensorStatus:[L8Sensor temperatureSensor]
                      withSuccess:^(L8SensorStatus *result) {
                          L8TemperatureStatus *status = (L8TemperatureStatus *)result;
                          NSLog(@"temperature: %@", status);
        [l8 readSensorStatus:[L8Sensor proximitySensor]
                      withSuccess:^(L8SensorStatus *result) {
                          L8ProximityStatus *status = (L8ProximityStatus *)result;
                          NSLog(@"proximity: %@", status);
        [l8 readSensorStatus:[L8Sensor accelerationSensor]
                      withSuccess:^(L8SensorStatus *result) {
                          L8AccelerationStatus *status = (L8AccelerationStatus *)result;
                          NSLog(@"acceleration: %@", status);

4. Examples:

There is a complete application in Countdown repository


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