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LORENZ BLOG

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Featured Post

How to Setup MQTT Server Using Mosquitto and Libwebsocket on Freebsd

How to Setup MQTT Server Using Mosquitto and Libwebsocket on Freebsd

By Lorensius Londa Leave a Comment

Recently i'm working on IOT project that needs to send data from ESP32 development board to web browser and mobile devices using MQTT protocol. The MQTT connection between the board and other clients didn't have problems using standard/native MQTT protocol, but it came into problem when the client … Continue Reading

Programming

How to Programmatically Restart the ESP32 Board

How to Programmatically Restart the ESP32 Board

By Lorensius Londa Leave a Comment

ESP32 development board is one of the popular board across the  IOT developer community. It is because the board itself packed with two built-in communication features, Wifi and Bluetooth (BLE). When … Continue Reading

How to Get Hardware Info of ESP32

How to Get Hardware Info of ESP32

By Lorensius Londa Leave a Comment

With the increasing popular of IOT technologies, there are also available development boards from many manufacturers. One of popular board is ESP32 which comes with integrated wifi and bluetooth (BLE) … Continue Reading

Eclipse Issue on Os X Yosemite – To open “Eclipse” you need to install the legacy Java SE 6 runtime

Eclipse Issue on Os X Yosemite – To open “Eclipse” you need to install the legacy Java SE 6 runtime

By Lorensius Londa Leave a Comment

Recently i just upgraded my Macbook Pro to the new Macbook Retina Display (mid 2014) that comes default with OS X Yosemite 10.10.1. After installing Java JDK 1.8, all my Android IDE (Eclipse and … Continue Reading

Blue Bamboo P25 Printer Android Demo Application With Source Code

Blue Bamboo P25 Printer Android Demo Application With Source Code

By Lorensius Londa 22 Comments

Blue Bamboo P25 printer is a lightweight and portable thermal printer that provides low cost printing in mobile and wireless environments. It supports mobile application printing over Bluetooth, USB … Continue Reading

How to Programmatically Pair or Unpair Android Bluetooth Device

How to Programmatically Pair or Unpair Android Bluetooth Device

By Lorensius Londa 24 Comments

In bluetooth wireless communication, if two devices want to connect and share data, they have to be paired first. To be paired means the two devices are aware of each other's existence and trusted … Continue Reading

How to Programmatically Scan or Discover Android Bluetooth Devices

How to Programmatically Scan or Discover Android Bluetooth Devices

By Lorensius Londa 14 Comments

Through Android Bluetooth API, developers can access most of bluetooth functionalities and let the applications wirelessly connect to bluetooth devices. Before connecting to a device, an application … Continue Reading

Gadgets

New BBM for Android V2.0 is Out, Brings Channels, Voice, Location Sharing, Tons of New Emoticons, Larger Groups and More

New BBM for Android V2.0 is Out, Brings Channels, Voice, Location Sharing, Tons of New Emoticons, Larger Groups and More

By Lorensius Londa Leave a Comment

Good news for BBM users, new version 2.0 is currently available on Google Store. This new update brings a lot of changes and new features. BBM Voice – Free voice calls between BBM contacts (Android, Blackberry, Iphone) BBM Channels – join conversations happening now with BBM users, brands, businesses, communities and more Faster and easier […]

Android Tips: How to Place Image or Logo at The Center of Actionbar

Android Tips: How to Place Image or Logo at The Center of Actionbar

By Lorensius Londa 1 Comment

When building an Android application, sometimes we need to put  application logo at the center of Actionbar. Android doesn’t provide a straight method to place a logo image at the center of Actionbar so we have to make a custom layout contains the logo image and place it on Actionbar using custom view. This sample […]

About Me

Passionate web and mobile application developer. Co-founder of TRUSTUDIO, loves programming, Android, aviation, travelling, photography, coffee and gym mania. Read More…

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Featured Articles

How to Setup MQTT Server Using Mosquitto and Libwebsocket on Freebsd

Blue Bamboo P25 Printer Android Demo Application With Source Code

Simple JSON RPC Client for Android

How to Send Message to Google Cloud Messaging (GCM) Server Using JSON and PHP

Recent Comments

  • mang jojot on About
  • Hussain on How to Programmatically Scan or Discover Android Bluetooth Devices
  • Kiran Ahuja on How to Programmatically Pair or Unpair Android Bluetooth Device
  • Edwin Alvaradko on How to Make Android Map Scrollable Inside a ScrollView Layout

Recent Posts

  • How to Programmatically Restart the ESP32 Board
  • How to Get Hardware Info of ESP32
  • How to Setup MQTT Server Using Mosquitto and Libwebsocket on Freebsd
  • Eclipse Issue on Os X Yosemite – To open “Eclipse” you need to install the legacy Java SE 6 runtime

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