DTMF & HT Demo

This repository contains scripts demonstrate the idea presented in the slides.

demo_pwd.py simulates a HT entering password. Inputs other than "5288" will be rejected.

You entered: 5288
Access granted.
You entered: 588
Access denied.
You entered: 4321
Access denied.

demo_dynamic.py enhances safety by adopting time-variant password.

demo_automobile.py uses your HT as a car key (with plenty of cool features).

You entered: 0
Opeartion code: 0 Action: lock
Parameter:
Car is LOCKED now.
You entered: 1
Opeartion code: 1 Action: unlock
Parameter:
Car is UNLOCKED now.
You entered: 4
Opeartion code: 4 Action: panic
Parameter:
*** Alarm sets off ***
You entered: 9
Undefined operation
You entered: 2#D0
Opeartion code: 2 Action: window_control
Parameter: D0
Rear Right window(s) now DOWN
You entered: 2#01
Opeartion code: 2 Action: window_control
Parameter: 01
ALL window(s) now UP

demo_ascii.py interprets input as ASCII characters. Yes, you can "text" on HTs.

You entered:  41 42 43 44
Translates to: ABCD
You entered:  48 65 6c 6c 6f 20 77 6f 72 6c 64 21
Translates to: Hello world!
You entered:  44 45 20 4b 44 32 54 41 49
Translates to: DE KD2TAI
You entered:  0a 59 38 38 62 20 20 20 20 20 20 20 20 20 2f 20 20 2f 7e 7e 38 38 62 20 2c 64 38 38 7e 7e 5c 20 20 7e 7e 7e 7e 64 38 38 50 20 0a 20 59 38 38 62 20 20 20 20 20 20 20 2f 20 20 7c 20 20 20 38 38 38 20 38 38 38 38 20 20 20 20 20 20 20 20 64 38 38 50 20 20 0a 20 20 59 38 38 62 20 20 65 20 20 2f 20 20 20 60 20 20 64 38 38 50 20 60 59 38 38 62 20 20 20 20 20 20 64 38 38 50 20 20 20 0a 20 20 20 59 38 38 62 64 38 62 2f 20 20 20 20 20 20 64 38 38 50 20 20 20 60 59 38 38 62 2c 20 20 20 64 38 38 50 20 20 20 20 0a 20 20 20 20 59 38 38 59 38 59 20 20 20 20 20 20 64 38 38 50 20 20 20 20 20 20 38 38 38 38 20 20 64 38 38 50 20 20 20 20 20 0a 20 20 20 20 20 59 20 20 59 20 20 20 20 20 20 64 38 38 50 5f 5f 5f 20 5c 5f 5f 38 38 50 27 20 64 38 38 50 5f 5f 5f 5f 20 20 20 20 20
Translates to:
Y88b         /  /~~88b ,d88~~\  ~~~~d88P
 Y88b       /  |   888 8888        d88P
  Y88b  e  /   `  d88P `Y88b      d88P
   Y88bd8b/      d88P   `Y88b,   d88P
    Y88Y8Y      d88P      8888  d88P
    Y  Y      d88P___ \__88P' d88P____

demo_image.py transmits image in PPM format. Find your output image in output/ subdirectory.

You entered:  50 31 20 33 20 32 0a 31 20 30 20 31 20 30 20 31 20 30
Translates to: P1 3 2
1 0 1 0 1 0
You entered:  50 33 20 34 20 34 20 31 35 0a 30 20 30 20 30 20 30 20 30 20 30 20 30 20 30 20 30 20 31 35 20 30 20 31 35 0a 30 20 30 20 30 20 30 20 31 35 20 37 20 30 20 30 20 30 20 30 20 30 20 30 0a 30 20 30 20 30 20 30 20 30 20 30 20 30 20 31 35 20 37 20 30 20 30 20 30 0a 31 35 20 30 20 31 35 20 30 20 30 20 30 20 30 20 30 20 30 20 30 20 30 20 30
Translates to: P3 4 4 15
0 0 0 0 0 0 0 0 0 15 0 15
0 0 0 0 15 7 0 0 0 0 0 0
0 0 0 0 0 0 0 15 7 0 0 0
15 0 15 0 0 0 0 0 0 0 0 0

Install Dependencies

pip install pyserial

Configure

For demonstration purpose, the default input are files. Depending on your situation, you may want to read data from the serial port or a file.

The serial port input expect characters sent from arduino with MT8870. Here's a sample program for your reference. It can be easily modified for out purpose.

In source code, uncomment the code and modify parameters for connection initialization:

conn = DriverFactory.newConnection("file")
print("Connection: " + conn.init(FILE) + "\n=========\n")
# conn = DriverFactory.newConnection("serial")
# print("Connection: " + conn.init(PORT) + "\n=========\n")

# modify parameters below
FILE = "test/ascii.txt" 
PORT = "COM3"

Run

You need python3 to run demo xxx:

python demo_xxx.py

HisenZhang/DTMF-App

DTMF & HT Demo

Install Dependencies

Configure

Run