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 … [Read more...]
Blue Bamboo P25 Printer Android Demo Application With Source Code
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 or Serial port (RS-232). It also has a good connectivity with Android device, makes printing from … [Read more...]
Simple JSON RPC Client for Android
This is a simple JSON RPC Client for Android. I wrote this class for one of my Android projects that needs to connect to external JSON RPC API. Feel free to use it, download the files at the bottom of this post..;) JSON RPC Client How to use it: [ad] Download Simple JSON RPC … [Read more...]
How to Send Message to Google Cloud Messaging (GCM) Server Using JSON and PHP
Google Cloud Messaging (GCM) is a free service from Google that helps Android developers to send data from their servers to Android applications on Android devices. GCM is the next generation of Android Cloud to Device Messaging (C2DM) which is currently deprecated but still in service without … [Read more...]
How to Use Multi-User Feature in Android Jelly Bean
Have you ever imagine multi user account feature found in desktop operating system (Windows, Mac, Linux) that enable you to login using different user account now can be found on mobile operating system? Yes, Android 4.1.1 aka Jelly Bean, the latest version of Android operating system has this … [Read more...]
How to Root Galaxy Nexus Jelly Bean with SuperSU
Android 4.1.1 aka Jelly Bean is the latest version of Android OS that makes us impressed with its outstanding performance in UI experience that makes UI very responsive and smooth. This new version of Android OS has been pushed by Google to Google's flagship phones, Galaxy Nexus and Nexus S using … [Read more...]
How to Manually Update GSM Nexus S to Android Jelly Bean (Android 4.1.1)
This tutorial might be the copy of my previous tutorial on how to manually update Nexus S to Android ICS 4.0.4 but with different Android version..the latest Android 4.1.1 a.k.a Jelly Bean. This tutorial is only for GSM version of Nexus S (i9020t/i9023 and i920a). Before doing update, make sure you … [Read more...]
How to Enable Android Jelly Bean OTA Update on Nexus S
Hello Droiders, Google has just pushed Jelly Bean (Android 4.1.1) OTA update for their flagship phone, Google/Samsung Nexus S. Normally this OTA update can be checked and downloaded from System Update menu on Settings. However, not all Nexus S phone get this OTA update. So if your Nexus S does not … [Read more...]
How to Manually Update GSM Nexus S from Stock ICS 4.0.3 to ICS 4.0.4
Google just rolled out Android 4.0.4, Ice Cream Sandwich, to UMTS/GSM Nexus S, Xoom Wi-Fi, and HSPA+ Galaxy Nexus devices. This update improves existing Ice Cream Sandwich experience with stability improvements, better camera performance, smoother screen rotation, improved phone number recognition … [Read more...]
How to Send Image to Twitpic from Android
Twitpic is one of the most common used image hosting that allows users to easily post images to Twitter and other social media. Twitpic can be used independently of Twitter, in a way similar to Google Picasa or Flickr. TwitPic usernames and passwords are the same as the ones in Twitter so it doesn't … [Read more...]
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