Profile of Freelancer Александра

I am engaged in the development of electronics on a modern element base. In particular, there are developments in the following areas:

• devices on microcontrollers of various manufacturers – from the smallest and cheapest, and ending with powerful digital signal processors;
• various low-consumption autonomous devices with long-term battery power;
• various wireless sensors with the transfer of information from a moving object to a processing tool
• Remote control systems – from simple load switches to complex robot control systems
• Interface blocks for pairing external devices with PCs
• devices for long-term digital recording of sound, voice recorders with large memory and low energy consumption
• devices for recording various signals with the transmission of information to the PC, or with an indication on the display
• all kinds of transceiver and transmitter devices - both on the basis of single-chip transceivers and on discrete elements using specialized chips (frequency synthesizers, ICs, frequency converters)
• devices using GSM modules, warning and alarm systems through a cellular network
• means for protection of cars and other property – alarm sensors, radio channels
• rotary devices for radio masts, including automatic guidance on the compass and accelerometer at a given corner of the place
• systems of gyroscopic stabilization of cameras for aircraft (from small systems for small unmanned aircraft to larger ones with a mass of opto-electronic systems up to 6 kg)
• Control of modular cameras using various standard protocols
• Improvement of electromagnetic compatibility between components of complex radio-electronic complexes
• creation of portable control stations and control of various complexes based on protected cases (development of panel design, construction, electronic part)
• Development of non-standard controllers for control of brushless motors
• control of electric motors with built-in encoder (control, speed stabilization through feedback)
• precision control of stepping motors in control and stabilization systems, work in microstep mode (up to 1024 microsteps per step), digital control of position, speed, acceleration
• analog circuits, processing of analog video signal, allocation of synchronous pulses, imposition of the picture on the video signal
• pulse voltage converters (from micropower to powerful – 3 kW 48v), pulse current stabilizers
• creation of analogues of control boards for various imported industrial equipment (in order to reduce the cost and simplify repairs)
• work with GPS/Glonass receivers, data format conversion, coordinate transmission over various radio channels
• development and manufacture of various control panels, including, if necessary, an indicator, keyboard, joysticks, wired or wireless interfaces, etc.
• development of a layout of the design of the device with the subsequent manufacture of a prototype on a 3D printer
• Replacement of electronic filling of serial device for use of the device for their own purposes
• Analog and digital communication devices
• Low-cost audio recording systems for use in advertising installations