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JVC MX-J550R  AUDIO SET BLUETOOTH -> INFRA RED REMOTE CONROLLER

RM–SMXJ550R - Mini project with STM32F103 in Atolic Truestudio environment. Several libraries have been created for future projects. Timers, PWM, implementation of IR transmission, communication over UART and Bluetooth (HC-05 system) have been practised.  The remote control is built of an "blue pill" evaluation board equipped with an infrared diode and connected to the HC-05 bluetooth module. The control is done through a universal bluetooth terminal application installed on the Android phone and adapted for the remote control function. The application allows you to define 50 keys, which fully allows you to use the full set of the original remote control with some additional functions. The whole is limited to the blue pill board, bluetooth and IR diodes and hidden in the housing of the audio kit.

PSEUDORANDOM SEQUENCY GENERATOR AND THE SIMPLEST DATA ENCRYPTION SYSTEM

The ppt presentation from the program in Visual Basic shows a work pattern of pseudo-random string generators and connections encrypting data on them.
Functions:
- selection of a generic generic polynomial up to 10 bits long
- pseudo-random string generation display
- illustrating the process of data encryption and decryption

Project implemented in 1998 on the basis of the AT89S8252 microcontroller
Functions:
- clock
- alarm
- access control based on DALLAS DS1990A systems
- modification of rights, clock and alarm settings

RADIO REMOTE CONTROLLER FOR CAMERAS

Project implemented in 2004 based on the AT90S2313 microcontroller and RFM SAW receivers.
Functions:
- remote control of the shutter operation
- adjustable shutter speed
- continuous shooting with adjustable interval between photos and shutter speeds
- set time for taking a single photo or series of photos
- about one month of continuous operation of the receiver on a CR2320 battery
- range depends on transmitter power, 200m with BT27 transmitter (10mW) 

RADIO DATA TRANSMISSION TESTER

Project implemented in 1998 on the basis of the AT89S8252 microcontroller, AVR 90S1200 microcontrollers and an PC application.
Functions:
- selection of a generic generic polynomial up to 30 bits long
- adjustable radio data speed up to 100 000 bps 
- BER (bit error rate) calculation