# android-design.nl

## LED Resistor Calculator

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## Signal Generator

Other features:

- Generate a maximum of 3 signals simultaneous.

- Save and load sound signals

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## RF & Microwave Toolbox lite

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This lite version includes the following tools:

1) PI and T attenuator

2) Reflectometer (VSWR, Return loss)

3) Mismatch error limits (VSWR, Return loss)

4) Parallel LCR impedance/resonance

5) capacitor impedance

6) lowpass filter

7) Capacitor plate calculator

8) Power and Voltage Converter

9) Coupler directivity calculator.

Tools in full version includes;

1.Noise floor (Kelvin,dBm)

2.Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

3.Radar equation (2-way path loss)

4.Radio equation (1-way path loss)

5.Power and voltage converter (W,dBm,V,dBµV)

6.Field intensity and power density converter (W/m2, V/m, A/m, Tesla, Gauss,dBm, W)

7.Mismatch error limits (VSWR, Return loss)

8.Reflectometer (VSWR, Return loss)

9.Mitered Bend

10.Divider and Couplers (Wilkinson, Rat race, Branchline , microstrip and lumped)

11.Balanced and und balanced PI and T attenuator

12.Skin depth (DC and AC resistance)

13.PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

14.Image rejection (amplitude and phase imbalance)

15.Mixer harmonics (up and down convertion)

16.Helical antenna

17.Peak to RMS (peak, RMS, average, CF)

18.Air Core Inductor Inductance

19.Parallel plate Capacitor

20.PI and T attenuator

21.Ohm's Law

22.Parallel LCR impedance/resonance

23.Series LCR impedance/resonance

24.Inductor impedance

25.Capacitance impedance

26.Antenna temperature (Kelvin)

27.Radar Cross Section (RCS) calculator (Sphere,Cylinder, flat plate, corners, dBsm)

28.Noise Figure Y-Factor Methode

29.EMC (EIRP, ERP, dBµV/m)

30.Noise figure converter (dB, linear, Kelvin)

31.Frequency Band Designations (IEEE Radar band, Military Radar band, Radio band, Satellite, Wavefuide band)

32.Resistor color code (reverse lookup, 3 to 6 band)

33.Filter Design (Butterworth, Chebyshev, prototype):

- Low pass

- High pass filter

- Band pass

- Band stop filter

34.µ-Filter Design (microstrip, stripline):

- Interchange of Circuits

- Kuroda's Identities

- Series and Shunt Circuit lines

- Coupled line Circuits

- Stepped Impedance

35) PCB Trace Width and Clearance Calculator

36) Series and Parallel component (R, L and C) calculations.

37) Reverse Series and Parallel resistor calculations.

38) Inductor Color Code Calculator.

39) Capacitor Charge Calculator.

40) Led Resistor Calculator.

41) Voltage Divider Calculator.

42) Thin Film Resistor Calculator (Trim and non Trim)

43) Opamp Calculator

44) Lumped Balun Calculator

45) Wavelength calculator

46) L-Network Matching Calculator

47) LCR Parallel - Series Conversion Calculator

48) PI & T-Network Matching Calculator

49) Coax Line Calculator

50) Twisted pair Calculator

51) Lumped-Distributed Equivalences calculator

52) Fresnel Calculator

53) Inductor Charge Calculator.

54) Heat Sink temperature calculator

55) Thermal via calculator

56) Coupler directivity calculator

57) Cavity resonance calculator

## Resistor Color Code

Calculate resistor value by selecting the band colors.

Or Reverse:

Enter a resistor value and find the color code.

If the value is not an standard E-series value the two nearest values are shown.

* 3, 4, 5 and 6 band resistor support *

If the resistor has a standard E-series value then also the E-series (E3, E6,E12, E24, E48, E96, E192) number will be shown.

App for resistor SMD code: http://play.google.com/store/apps/details?id=mwave.resistor_smd_code

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## Resistor SMD code calculator

Standard 3 digit code that can include:

- R to indicate a decimal point

- M to indicate a decimal point for milliohms (Current sensing SMDs)

- "underline" to indicate that the value is in milliohms (Current sensing SMDs)

Standard 4 digit code that can include “R” to indicate a decimal point.

EIA-96 1% code with a number in the range 01 to 96, followed by a letter

2, 5, and 10% code with a letter, followed by a numbers in the range 01 to 60

## Signal Generator 2

Other features:

- Generate a maximum of 100 signals simultaneous.

- Generate a set of random sound signals

- Save and load sound signals

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## Analog electronics Toolbox

All the tools in this app are also included in the RF & Microwave Toolbox app:

http://play.google.com/store/apps/details?id=mwave.mwcalculator_pro

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Feature list:

1) PI and T attenuator

2) Power and voltage converter

3) Parallel LCR impedance/resonance

4) Series LCR impedance/resonance

5) Inductor impedance

6) Capacitance impedance

7) Ohm's Law

8) Radio equation calculator (1-way path loss)

9) Air Core Inductor Inductance Calculator

10) Capacitor impedance

11) Noise floor

12) Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

13) Low Pass filter

14) High Pass filter

15) Helical antenna

16) Band Pass filter

17) Band Stop filter

18) Peak to RMS (peak, RMS, average, CF)

19) Mixer harmonics

20) Resistor Color Code calculator.

21) PCB Trace Width and Clearance Calculator

22) Series and Parallel component (R, L and C) calculations.

23) Reverse Series and Parallel resistor calculations.

24) Inductor Color Code Calculator.

25) Capacitor Charge Calculator.

26) Led Resistor Calculator.

27) Voltage Divider Calculator.

28) Opamp Calculator

29) Wavelength calculator

30) LCR Parallel - Series Conversion Calculator

31) Inductor Charge Calculator.

32) Heat Sink temperature calculator

33) Thermal via calculator

34) Resistor SMD Code calculator.

Also checkout the RF & Microwave Toolbox which has all the tools of this Electronic Toolbox and the RF & Microwave tools.

Please let me know if there are electronic related tools that you would like to be added.

## Opamp Calculator

Feature list:

- Inverting Amplifier

- Non inverting Amplifier

- Differential Amplifier

- Inverting Summing Amplifier

- Summing Amplifier

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## RF & Microwave Toolbox

If the reviews are not visible please use this link:

http://play.google.com/store/apps/details?id=mwave.mwcalculator_pro&hl=en

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With the following tools:

(This Toolbox contains also all the tools of the Analog ElectronicToolbox, PCB Trace Calculator and Resistor Color Code Calculator.)

1) Noise floor (Kelvin,dBm)

2) Amplifier cascade (NF, Gain, P1db, OIP2, OIP3)

3) Radar equation (2-way path loss)

4) Radio equation (1-way path loss)

5) Power and voltage converter (W,dBm,V,dBµV)

6) Field intensity and power density converter (W/m2, V/m, A/m, Tesla, Gauss,dBm, W)

7) Mismatch error limits (VSWR, Return loss)

8) Reflectometer (VSWR, Return loss)

9) Mitered Bend

10) Divider and Couplers (Wilkinson, Rat race, Branchline , microstrip and lumped)

11) Balanced and und balanced PI and T attenuator

12) Skin depth (DC and AC resistance)

13) PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

14) Image rejection (amplitude and phase imbalance)

15) Mixer harmonics (up and down convertion)

16) Helical antenna

17) Peak to RMS (peak, RMS, average, CF)

18) Air Core Inductor Inductance

19) Parallel plate Capacitor

20) PI and T attenuator

21) Ohm's Law

22) Parallel LCR impedance/resonance

23) Series LCR impedance/resonance

24) Inductor impedance

25) Capacitance impedance

26) Antenna temperature (Kelvin)

27) Radar Cross Section (RCS) calculator (Sphere,Cylinder, flat plate, corners, dBsm)

28) Noise Figure Y-Factor Methode

29) EMC (EIRP, ERP, dBµV/m)

30) Noise figure converter (dB, linear, Kelvin)

31) Frequency Band Designations (IEEE Radar band, Military Radar band, Radio band, Satellite, Waveguide band)

32) Resistor color code (reverse lookup, 3 to 6 band)

33) Filter Design (Butterworth, Chebyshev, prototype):

- Low pass

- High pass filter

- Band pass

- Band stop filter

34) µ-Filter Design (microstrip, stripline):

- Interchange of Circuits

- Kuroda's Identities

- Series and Shunt Circuit lines

- Coupled line Circuits

- Stepped Impedance

35) PCB Trace Width and Clearance Calculator

36) Series and Parallel component (R, L and C) calculations.

37) Reverse Series and Parallel resistor calculations.

38) Inductor Color Code Calculator.

39) Capacitor Charge Calculator.

40) Led Resistor Calculator.

41) Voltage Divider Calculator.

42) Thin Film Resistor Calculator (Trim and non Trim)

43) Opamp Calculator

44) Lumped Balun Calculator

45) Wavelength calculator

46) L-Network Matching Calculator

47) LCR Parallel - Series Conversion Calculator

48) PI & T-Network Matching Calculator

49) Coax Line Calculator

50) Twisted pair Calculator

51) Lumped-Distributed Equivalences calculator

52) Fresnel Calculator

53) Inductor Charge Calculator.

54) Heat Sink temperature calculator

55) Thermal via calculator

56) Coupler directivity calculator

57) Cavity resonance calculator

58) Resistor SMD Code calculator

59) Waveguide calculator

60) Lumped phase shifter calculator

61) Series section impedance matching transformers

- Series section transformer

- Quarter Wave transformer

- Bramham (12th wave) transformer

- Regier transformer

62) Power (dBm) add calculator

63) Doherty PA calculator

Please let me know if there are Electronic and RF & Microwave related tools that you would like to be added.

You can send me an email for a feature request.

## Ohm's Law Calculator

Feature list:

1) Ohm's Law

2) Resistor Color Code calculator.

3 )Series and Parallel component (R, L and C) calculations.

4 )Reverse Series and Parallel resistor calculations.

Also checkout the RF & Microwave Toolbox or the Analog Toolbox.

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## Wind Turbine Estimator beta

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Calculate:

- Rated output power (kw)

- Annual Energy Output (kwh/year)

- Cost of wind power (k€/kwh)

- Annual Profit (k€)

- Return on Investment (%)

- Break even Point (Years)

- CO2 reduction (Tonnes/Year)

Input:

- Rotor size

- Wind Turbine cost (k€/kw)

- Wind turbine revenue (€/kwh)

- Turbine efficiency

- Generator efficiency

- Mechanical efficiency

- Capacity Factor (%)

- Land lease cost (%)

- Operations and Maintenance cost (%)

## Black Screen Burn-in protector

It works as a burn-in protector for plasma and Amoled Screens.

On some TV Sticks (mk808) you cannot dim the TV screen and the screen time out is also not working.

And if you only want to play only music (Spotify) then it could be possible that the screen will burn-in.

Tap Anywhere on the screen to exit the app.

## Do not follow me

When active, you can no longer be followed by the stores when doing shopping.

## PCB Thermal Calculator

Calculate the Junction Temperature of a device or calculate the needed heat sink for a

certain Junction Temperature.

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## Personel Alarm AD (beta)

Seniors can use this app to alert, in case of emergency, one or more family members.

People on the move can also use this app because the Alarm message contains also the location.

A big advantage of this app is that there is no internet connection required.

Extra options:

Auto answer phone: Phone will auto answer phone calls from the contact persons.

Alarm shake activation: The alarm can be activated by shaking the phone.

## Yet Another Flashlight (YAF)

This is the most clean and simple Flashlight app with no advertising and no permissions other then accessing the flashlight of the camera.

With two simple buttons you can choose between using the camera's flashlight or the screen as light source.

The app is also useable when then the screen is locked.

Optional you can choose a screen color and change the screen intensity.

## Quick Calc (game)

The game starts with easy sums and will be harder as the game progresses.

Try it out and challenge your friends to get the highest score.

The faster you solve a sum the more bonus points you get.

## SWR Calculator

The Directivity Error Calculator shows the accuracy of a reflection measurement of unknown impedance. It bases its readings on the directivity of the coupler used for the measurement. It is also a convenient way to convert a reflection coefficient to an equivalent standing wave ratio (SWR), return loss, or mismatch loss.

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## Counting for kids

The math game has different levels.

The game works on tablet and smartphone.

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## Resistor Color Code no ads

(This is the version without advertising)

Or Reverse:

Enter a resistor value and find the color code.

If the value is not an standard E-series value the two nearest values are shown.

* 3, 4, 5 and 6 band resistor support *

If the resistor has a standard E-series value then also the E-series (E3, E6,E12, E24, E48, E96, E192) number will be shown.

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This tool is also included in the

- RF & Microwave Toolbox

- Analog Toolbox

## PCB Trace Calculator

All the tools in this app are also included in the RF & Microwave Toolbox app.

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With the following tools:

1) PCB Trace calculator (impedance/dimensions)

- Microstrip

- Stripline

- Coplanar waveguide

- Coupled microstrip

- Coupled stripline

2) PCB Trace Width and Clearance calculator

3) Heat Sink temperature calculator

4) Thermal via calculator