thechampanurag Apps

Ardroid 0.2
An Android Application for controlling any type of Arduino'sDigital and PWM Pins with the help of Bluetooth. It can be used toControl Arduino Uno's Digital and PWM pins , Send & Recievetext commands to/from Arduino. Arduino code for above Applicationcan be Download from the link: https://goo.gl/iRPKWP
DTMF Tones 2.0
This App generates DTMF Tones of a 4x4 keypad and It can be usedinRobotics and Embedded Systems also . What is DTMF?Dual-tonemulti-frequency signaling (DTMF) is used fortelecommunicationsignaling over analog telephone lines in thevoice-frequency bandbetween telephone handsets and othercommunications devices and theswitching center. The version of DTMFthat is used in push-buttontelephones for tone dialing is known asTouch-Tone. How it Works?The DTMF keypad is laid out in a 4×4matrix in which each rowrepresents a low frequency and each columnrepresents a highfrequency. Pressing a single key sends asinusoidal tone for eachof the two frequencies. For example, thekey 1 produces asuperimposition of tones of 697 and 1209 hertz(Hz). Initialpushbutton designs employed levers, so that eachbutton activatedtwo contacts. The tones are decoded by theswitching center todetermine the keys pressed by the user.