Currently there are two input options for the application.
**** PLEASE ENSURE THE GABOTRONICS DEVICE IS UP TO DATE!!
***** USB SUPPORT ****** (only for android 3.1 and greater)
The newest and best input option is a USB hardware device provided by Gabotronics. USB host mode has now been compatible since android 3.1, therefore most new phones and tablets will support USB host mode (Please check device). NFX Oscilloscope supports the Gabotronics Xprotolab/Xminilab, this has 2 analogue input channels and 8 digital channels and measures a tiny 2.5 x 4 cm!! The device it's self is a cheap portable alternative to most mainstream oscilloscopes, and has many different features. Connecting the Xprotolab to the NFX Oscilloscope provides a powerful and cheap oscilloscope platform for your portable needs. For more information on the Xprotolab or Xminilab click the following links.
So match this application with the cheap device from gabotronics and you will get a great portable oscilloscope!
Note: Only the analogue channels and logic Channels are supported on the xprotolab/xminilab, future updates will bring digital and tone generator support.
Spec list for xprotolab:
2 Analog Inputs
Maximum Sampling rate: 2MSPS
Analog Bandwidth: 200kHz
Input Impedance: 1MΩ
Buffer size per channel: 256
Input Voltage Range: -14V to +20V
Currently the USB mode has been tested on Samsung Galaxy Nexus , Asus Transformer , Asus Nexus 7 , Samsung Galaxy S3
There has been problems reported with android version 4.3 and USB host, there is a major bug in the release, which is set to be updated at some point in the future.
Please note : Most devices will need a OTG cable to enable usb host mode. See phone specific instructions for more information.
***** Microphone SUPPORT ******
The second option is the microphone input to the android device. This can be used to attach a scope lead to the jack socket. More information can be found at the following website.
Features include, triggering for different impulse and continuous signals. In addition to this there is level measurement and fundamental frequency readings
It is possible to control the amplitude, time/div and trigger level whilst monitoring. Settings included trigger directions, sample rates and voltage span calibration.
Have a look at this blog for more scope cable information from a fellow user of Nfx oscilloscope.
Head to my blog for more information on the NFX Oscilloscope.
Version 6 finally brings USB support in collaboration with the gabotronics Xprotolab. This now means we are not tied down to the maximum sample rate of the phone!!! Head over to their website to see the full specs on the product.
If you are unhappy in anyway with this product, feel free to contact me and I will help all I can, if I cannot help I will offer a refund at any time (even past the 15 minute google refund mark)
Email : firstname.lastname@example.org
Thank you for purchasing, I hope you enjoy! If you have enjoyed this app leave a quick rating and comment. Thanks!!
New in 1.3:
+ Display pulse width (for freq < 2.5KHz)
+ Automatic amplitude fits.
+ Frequency counter.
+ Lab tested w/ 60Hz to 20KHz sinusoid.
Please feel free to email us comment/enhancement request.
*** OUTPUT ***
Visualization is done on real like device that shows:
- Audio level
- Noise Level
- Current frequency
- Frequency oscilloscope
- Time to Frequency chart
*** ACCURACY ***
Application is calibrated with real tone generator. Internal microphone limit is around 1800 Hz, but under this frequency accuracy is very respectable +/- 0.5 Hz.
*** NOISE LIMIT ***
You can easily set a limit that removes noise treshold with included trackbar.
*** EXPORT ***
You can export TTF chart to comma-separated file that you can later analyze with MS Excel or other table processor. Application has file directory browser with Save and Overwrite feature.
Please don't hesitate to write us for details or questions: email@example.com
It can be used with a phone or tablet without a computer.This means there is no any wired connection to the phone or tablet, which can guarantee the safety of your device.
The oscilloscope is the most frequently used, most flexible device for electric measurements.
It visualizes an electric potential over time function, producing much more information than other potential and current measurement methods.
With an oscilloscope the following quantities can be either directly or indirectly measured:
direct voltage, alternating voltage, direct current, alternating current, time, time delay, phase, phase difference, frequency to view live waveforms, make measurements.
Demo mode available.
Displaying the audio waveform captured from a microphone.
Accelerometer waveform, x y z.
Measure: frequency, min/max, peak-peak
FFT for microphone input.
Shows trigger level information
Save screen captures from your instrument onto your mobile device
Save signal to file in csv format.
Control the following functions
• start/stop/single acquisition
• change time/div
• change volts/div
• turn channels on/off
• select trigger type/level
• screen zooming
• double click on triggers sets them to zero level
Android 2.3.5 and up
Please email firstname.lastname@example.org to report bugs, ask questions or give us your feedback.
* Free distance meter
* Measures the distances of nearby objects in realtime
* Visualizes the results as a diagram
1. Tap to start scanning
2. Move the device back and forth to identify the target's sonar echo
3. If necessary, move the device sidewards to escape interferences
4. Place the device at the desired position
5. Optionally, tap to hold results
6. Read measured distances
* Try both microphones via the settings menu
* Try different volume levels
* Don't cover the speaker or microphone
* For a first test, hold the device at about 1m distance in front of a wall
It has cool analog vu meter and oscilloscope.
It can be used to verify if a sound is at same level for measuring loudspeaker response.
The app is intended for fun and it does not provide accurate measurement in decibels.
■ 30 to 102dB range
■ local peek/max values display
■ response mode: fast/medium/slow
■ analog vu meter
■ digital vu meter
■ support for tablets and landscape mode
■ support for calibration
Use it if you are developing an app that uses sensors, to measure your environment, to learn about the physical phenomena that these sensors measure, or simply if you are curious.
Supported sensors are:
- Uncalibrated Magnetic
- Orientation (*)
- Gravity (*)
- Linear acceleration (*)
- Rotation vector (*)
- Game Rotation vector (*)
- Geomagnetic Rotation vector (*)
- Bluetooth signal strength
- Wi-Fi signal strength
- Step Counter
- Step Detector
- Significant motion
- Relative humidity
- Ambient temperature
When it makes sense, you can plot the X, Y, and Z component, and the magnitude. For Wi-Fi and Bluetooth you can plot the strongest signal, or a chosen network.
Not all Android devices have all sensors, and some even have `fake' sensors that always return zero. The sensors indicated with (*) are `virtual', `synthetic' or `fused' sensors that combine or process data from other sensors.
Entertain and teach young kids as they watch the screen change according to the noises they make.
This app does not record any audio.
Keywords: audio, wave, oscilloscope, microphone, visualize, sound
You may not realise it but you are holding in your hand the latest innovation that will enable you to harness the processing power which you already have in your pocket - and use it for debugging and analysis on the move.
- Connect seamlessly via Bluetooth to any smart device
- Email data in real time for fast turn-around and further analysis
- Multiple data analysis and logging options: oscilloscope mode plus CAN, I2C, SPI, RS232, RS485, 8-bit bus, DVM ...and many more!
- Signal generator functionality
- Digital outputs to control electronics, LEDs, ...
Currently available: Basic oscilloscope mode and CAN bus analysis. Other modes under development.
NOTE: THIS APP REQUIRES THE HITEX CANDROID INTERFACE! Without this, you can use the App in "Demo mode" by running it and clicking on "Demo" which will show you some example screenshots.
++ First batch of CANdroid hardware already sold out, more coming soon! For details of the Hitex CANdroid hardware and to get priority on the next batch of interfaces, please go to www.candroid.co.uk or email us on email@example.com.
Follow us on Twitter for updates: @CANdroid
** Support/discussion forums coming soon! **
- Visualización de señales externas por medio de la conexión USB de placas basadas ya sea en Arduino Nano o en PIC 18F2550.
- Utilización del microfono del dispositivo como fuente de señal.
- Transformada de Fourier para visualización del espectro en frecuencia.
Esta aplicación forma parte del Proyecto Integrador de la carrera Ingeniería Electronica de la Facultad de Ciencias Exacta, Fisicas y Naturales de la Universidad Nacional de Cordoba.
Código de fuente del proyecto (Android, Arduino y PIC)
SPICE is an acronym for Simulation Program with Integrated Circuit Emphasis
and was inspired by the need to accurately model devices used in integrated circuit design.
DroidTesla simulator solves basic resistive circuits using Kirchoff’s Current Law (KCL)
in much the same way a student in a circuits class would,the simulator systematically forms a matrix in accordance
with KCL and then proceeds to solve for the unknown quantities using various algebraic
techniques such as Gaussian elimination and sparse matrix techniques.
For non-linear components, such as the diode and BJT ,DroidTesla engine searching for the approximate solution by making an initial guess at an answer
and then improving the solution with successive calculations built upon this guess.
This is called an iterative process.DroidTesla simulation uses the Newton-Raphson iterative algorithm
to solve circuits with non-linear I/V relationships.
For reactive elements(capacitors and inductors),the DroidTesla uses numeric integration methods to approximate the state of the reactive elements as a function of time.
DroidTesla offers the Trapezoidal(I'll add a GEAR method later) integration methods to approximate the state of the reactive elements.
Although for most circuits, both methods will provide almost identical results,
it is generally regarded that the Gear method is more stable, but trapezoidal method is faster and more accurate.
DroidTesla for now can simulate:
-Ideal operational amplifier
-Bipolar junction transistor (NPN PNP)
-MOSFET N-channel depletion
-MOSFET N-channel enhancement
-MOSFET P-channel depletion
-MOSFET P-channel enhancement
-JFET N and P
-PN Led diode
-PN Zener diode
-AC current source
-DC current source
-AC voltage source
-DC voltage(battery) source
-CCVS - current controlled voltage source
-CCCS - current controlled current source
-VCVS - voltage controlled voltage source
-VCCS - voltage controlled current source
-Square wave voltage source
-Triangle wave voltage source
-Two channe oscilloscope
-Voltage controlled switch
-Current controlled switch
-7 Segment Display
If you are making an
oscillators you have to put a small initial value on some of the
reactive elements.(see the examples)
More from developer
This is the Open Source Oscilloscope based on the Bachelor Thesis "Using Android in Industrial Automation" of the University of Applied Sciences of Northwestern Switzerland.
Note that this application is written for an embedded system for high speed data acquisition (runs on the Beagleboard) and this is a port to the phone/tablet platform.
It will use the microphone as input source, "USB" will only work with the hardware board from our project.
For more information about the project visit
-> (NEW) Tablet support
-> Mic Input, only working mono 44100[Hz] at the moment.
-> Cursor, Trigger, Offset
-> If you want to use it with our board (schematic at http://android.serverbox.ch) up to dual 6 [Msps], 8 bit A/D, no root needed :).
Tested on Nexus S, HTC Magic, LG P500 and Acer A500 3.1 Tab
If you want to add your own features feel free to download the and compile the source:
!THE DEVELOPERS ARE IN NO WAY AFFILIATED WITH DIGITEC AG SWITZERLAND!
This app is in development, hence the name BETA. Please send us a bugreport if you find a problem with the app.
There are no advertisements yet, which may change in the future.
-> Search and find products and see price, details, picture, etc.
Features NOT IMPLEMENTED
-> You CANNOT read/write comments
-> You CANNOT order or log in
-> You CANNOT see the current daily discounted product
-> You CANNOT browse products
If you like it, please don't hesitate to rate this app.
It enables you to monitor your Baby's room using your mobile phone. Download the Bluetooth Baby Monitor on two Android phones and place one in your Baby's room and the other one in your bedroom.
» No Network Connection needed
» No SIM needed (less power required, no additional costs)
» No WLAN needed for transmission (less power required)
» Voice activation
» Two initial Layout Themes
» Use anytime, anywhere
» See the battery level of the phone in the Baby's room
Download the app to have the Nap-Version running 30 minutes. You can upgrade to the unrestricted version inside the application.
The range of Bluetooth varies based on your environment and your device. Therefore, the app also displays the connection quality.
Features planed for the next version:
» Push to listen.
» Option: Alarm when Battery is low
Features planed for the future:
» Wifi/WLAN Support
» Record & Push to play lullaby
Exclusive For Android!
Using Bluetooth your phone can be used to scroll on your Desktop/Laptop.
Head over to our technical blog for instructions and the source code for the Linux side.
The source code demonstrates how to use Bluetooth and the Linux uinput system to emulate mouse movement or key presses.
*This tool only works with Linux (tested on Ubuntu)*
*The tool is open source (GPL) and you are required to compile the Linux source code*
Thanks for your support :)