July 15, 2015

Metal Detector (v1.4) manual

Hello. I'm Android Boy.

This app is a tool to measure Magnetic Field Levels using a magnetic sensor (magnetometer). Many users are using it to find electrical wires and stud in the wall. First watch a demonstration video of my user.


Magnetic field level in nature is about 49μT (490mG). When any metal is near, the value will be increased. If this app does not work as you extect, I recommend to initialize the sensor.


 How to use it ???
  - There is no special usage. Just open the app, and move it around. The number will be changed. That's it.
  - Magnetic sensor will respond to electronic products (TV, PC) due to electromagnetic waves.


※ Introduction video



 Color grades of chart
① Green : Magnetic field level in nature within tolerance.

② Blue : Too low. The sensor might be weakened because of phone heating and age. You should cool down your phone. Otherwise, replace the battery with new one.

③ Red : Too high. There is a metal object nearby. If the value is very high (+170μT), a vibration occurs. To stop it, click a stop icon. You can turn on alarm sound at the settings.



 If it does not work properly...
  - Several devices have no magnetic sensor. Please verify your specifications.
  - A leather case with a magnetic "snap" can make the sensor out of order.
  - Rebooting or Factory reset will be helpful for initializing it.
  - If not solved, visit a customer center of your phone (Samsung, LG, Sony...)


※ Settings
 - Alart level : Select the threshold value of alarm.
 - Beep sound : choose from 4 different sound types.



 FAQ
Q. This app does not work. Number is zero (0).
A. 1500+ devices had no magnetic sensor (Micromax, Karbone ...). Please check your specifications.

Q. Can it find a hidden camera and ghost?
A. If they generate magnetic(electric) fields, this app can catch them. A lot of ghost hunters had downloaded this app, and they had experimented as a ghost detector.

Q. Can it find gold?
A. It is not easy to detect gold. Pure gold is classified as non-ferrous that has no magnetic field.

Q. How far is the effective range?
A. It depends on the performance of your sensor exactly. Anyway, its effective distance is at most 7-8 inches (15-20cm).


 Pro version added features
 1) Compass full version integrated
 2) No ads
  Get it on Google Play


 What's new?
  - v1.4 : Material design
  - v1.3 : Actionbar added
  - v1.2 : Tablets support
  - v1.1 : Alarm sound added
  - v1.0 : Metal detector released (Aug, 2011)
https://play.google.com/store/apps/details?id=kr.sira.metal

If you have any idea to improve it, feel free to contact me.
Thank you. androidboy1@gmail.com

July 2, 2015

Smart Level (v1.0) manual

Hello. I'm android boy, a chief of developing team of Smart Tools co.,

For 4 years, I had no reason to develop a spirit level because I released a protractor. Recently I found that most users would not select/download my protractor instead of a surface level. :-)

Unlike the paid version, it supports both portrait mode (for phone) and landscape mode (for tablet PC). It has the material theme. In the near future, I'll translate into more languages. Please wait for next update.


※ Introduction video



※ Main features
 1) Surface level
 2) Vertical spirit level
 3) Horizontal spirit level
 4) Zero calibration



※ Tile units
 ① Degree(˚)
 ② Percent(%)
 ③ Radian(rad)
 ④ Roof pitch : for US carpenters, 5½/12"


※ Menu & Settings
 - Text size, Text Color, Background color,
 - Show calibration, Tilt Units, Orientation sensor



※ Lock screen
Touch anywhere on the screen. "Holding..." text will blink. Later I'll consider to add a Lock button.


※ Orientation sensor ??
Most level apps are using only an acceleration sensor. But this way has restrictions. When the result is bigger than 60 degrees, it becomes inaccurate. In particular, it has a trouble to calculate diagonal tilt.

My level app provides its solution. Orientation sensor! The app calculates tilt by using magnetic sensor and acceleration sensor. The result is more reliable. I recommend that you turn on this option.

Several custom ROM and non-magnetic devices cannot activate orientation sensor. Please check your specifications and turn it off.


※ Pending updates
- More languages support
- Camera view


※ What's new?
- v1.0.0 : Theme update, minor fix
- v1.0 : Smart Level released (July, 2015)
https://play.google.com/store/apps/details?id=kr.sira.level

When you have any idea to improve it, feel free to contact me. Thanks.
androidboy1@gmail.com

April 10, 2015

I got new Samsung Galaxy S6.

Hello. I'm Androidboy.

Today I received a Galaxy S6 phone. The appearance is same to SGS5. Its thickness is thinner, the screen is bright and clear.

Anyway I'll do my best to calibrate my apps on it.