Check validity of credit card number

Record bowling score/pin location, show pin statistics, export to CSV files

Refresh files in SDcard and make it visible in PC

Record bowling score/pin location, show pin statistics, export to CSV files

Record bowling score/pin location, show pin statistics, export to CSV files

Permanently delete photos and prevent file recovery

Collection of 555 circuit, RC,RL,LC filter, resistor ratio, R in parallel/series

Find out combination of resistors in series/parallel making a desired resistance

Find out combination of resistors in series/parallel making a desired resistance

Calculation of astable and monostable circuit

Collection of astable circuit, RC,RL,LC filter, resistor in parallel/series

Record solve time. Best time and average time are shown

Solve 2 or 3 linear equations, load equations from CSV

Code wizard generating C code and 21 demo projects

Keep tracks of income and expense

Logging with running, walking, biking, hiking etc

Keep archery score with photo, share score with friends !

Find out combinations of L and C making a desired resonant frequency

Say goodbye to paper-based target score sheets!

Log accelerometer data to csv file with minimum and maximum are calculated

Calculate resistor values of voltage divider / inverting amplifier gain

Calculate Ohm's Law

Log or parse NMEA sentences

Use adjustable voltage regulator ; calculate the components value