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.
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 : email@example.com
Thank you for purchasing, I hope you enjoy! If you have enjoyed this app leave a quick rating and comment. Thanks!!
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.
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.
The spectrum of the signal is determined using FFT.
I made this after getting fed up of using a calculator all the time to try and work out exactly what I was frequency I was seeing on screen!!.
So I decided to make an Android App to do it all for me and it kind of grew from there!
Found it to be more useful than I thought as I now find myself using the scope more and more now I understand what I'm seeing!
Have fun and let me know if anything is wrong with the App... feedback is always welcome.
- Frequency Calculation in Hz, kHz, MHz, GHz etc
- Rising/Falling Edge Time Calculation.
- Phase Calculator displaying results in Degrees, Radians, Quadrants, Frequency and time offset.
- RMS Calculator displaying RMS values of Square Waves (Various Duty %), Sine Wave, Triangle Wave, Sawtooth Wave. Includes adjustment for probe attenuation.
- Duty Calculator of a square wave based upon pulse on/pulse off duration.
- Amplitude Calculator based upon voltage, number of divides and probe attenuation.
- Ripple Calculator based upon voltage, probe attenuation etc (Added some ATX and USB information)
- Has a 'Keep Alive' option for the screen in the menu.
- All answers from the calculators can be copied to clipboard if you wish to move the answers to a 'proper' android calculator etc.
- All answers can be Shared amongst other Android Apps that support the Androids 'text' format. (SMS, eMail, Viber etc etc etc)
- All screens are scrollable and scalable so should support the smallest (~120ppi) resolution devices right up to the largest tablets out there!
Howto's available on our https://www.youtube.com/channel/UCYpUzMIaVfcYDJbrzyaE1ig/feed">youtube channel
Check the SmartScope tech specs at https://www.lab-nation.com/specs
NOTE: If you cannot install this app, it probably means your device doesn't support USB on-the-go. This means you can't use the SmartScope. If you'd like to try the app still, you can download the android package (APK) from our website at https://www.lab-nation.com/download
*** 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
- 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)
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.
100% Ad free!
■ 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 sending chart to email
■ support for calibration
Entertain and teach young kids as they watch the screen change according to the noises they make.
This app does not record any audio.
Full source code can be found here: https://github.com/synaptik-/SoundWave
Keywords: audio, wave, oscilloscope, microphone, visualize, sound
View video on how to use it on YouTube:
Check out ArduinoDroid - Arduino IDE for Android:
What do you think about this idea of crowd-funding for features in the apps:
Translate ArduinoCommander UI into your native language:
- discover and connect to Arduino board:
- over bluetooth (Bluetooth shield like Sparkfun bluetooth modems (http://bit.ly/zFBqsg) or these (http://bit.ly/AzqnJV) is required)
- over ethernet (W5100-based ethernet shield (official (http://bit.ly/N8RqpY) or these (http://bit.ly/Lgk2MS) and sketch are required)
- over USB (USB Host mode support on android device and Android 3.1+ are required)
- over USB as Android Accessory (USB Host shield like these (http://bit.ly/MwTQ2t), Android 3.1+ and sketch are required)
- display board firmware version, name and Firmata protocol version
- set pin mode (analog/digital input/output, pwm, servo)
- get/set pin values
- LED and pin mode animation
- beautiful WYSIWYG interface for any screen dimensions
- arduino sensors (set PWM output using android device sensors (accelerometer, gyroscope, ...))
- save and load pins configuration from file
- speech input
- Arduino Mega board support
- meter view (vintage VU meter for analog input)
- Arduino Nano v2/3 boards support
- sketch uploading
Advanced features are paid and marked using asterix (*) in the app
Upload StandardFirmata sketch to your arduino board first (Menu / Upload sketch */ StandardFirmata @ 57600)
Visit application page (http://anettosoftware.co.uk/ac.php)
to view screenshots, read full app description and usage instructions.
© "Arduino" is a trademark of Arduino team.
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:
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 :)