Multifunctional sinusoidal three-phase signal generators are available on the market for testing inverters. However, in a situation where a simple control is necessary, to which a single frequency signal suffices, such a device becomes an unnecessary expense.nMoving the phase of an already generated analog signal would be difficult to perform, therefore it was decided to…
Often there is a need to control the working time of the device powered by mains voltage. Different time switches are available in the market, but most of them require time-consuming configuration. In particular, when control is limited to an automatic shutdown after a set time, such solutions become ineffective. For this purpose, the described…
The aim of the project is to create a control unit, a controller, for the purpose of lighting the staircase. Stairs, respectively. each staircase is illuminated by an LED strip. The lighting responds to passing people and adequately evaluates the ambient light level. Parameters such as light time, light speed, length of light shine, etc.…
The dual channel amp volt meter circuit allows simultaneous measurement of 2 DC voltages and 2 currents on the LCD screen. Voltage measurement: 0-100 VDC or 0-10 VDC, Current measurement range 0-10A or 0-1A. The operating voltage of the circuit is between 8v-30v DC and does not require calibration. The heart of the meter is…
For the author, the automatic feeding machine for the wedge is the easiest mechanical part for the application. they insert a plastic container all of which is placed on the CD present on the CD-ROM and put the ready-made cat here. Attiny13 Automatic feeding circuit A simple driver circuit is used for engine control based…
The game console is made up of an Atmel ATmega32 processor, comprising 32kB Flash program memory, 1kB EEPROM memory and 2kB SRAM memory. Next is the console consisting of an LCD display and a speaker. To the console for ease of maneuverability games joins the joystick. This is a 64×128 pixel LCD. Available under different…
USB ESR Meter Circuit The main part of the meter is a ATmega8 microcontroller that controls the entire device. Its main the task is to process measured data and perform calculations so that the result is real ESR value. This value is displayed on the LCD. Another task of the ATmega8 microcontroller is communication with…
Nixie lamp Thermometer DS18B20 Circuit with ATtiny2313 The first Nixie lamps appeared in the mid-twentieth century. For many years they have been used in a variety of apparatuses but have been supplanted by newer VFD displays and LEDs. For decades, forgotten again, they returned to grace in retro electronics projects of hobbyists as well as…
ATMEGA48 Many devices may be in standby mode during downtime. They do not perform any work, they are apparently disabled, but the control circuits are powered. To extract useful information from the point of view of working time, you should download it from the inside of the device, which may end up with a loss…
RF Remote ATtiny24 An uncomplicated radio system that enables remote switching of two power consumers whose power requirements do not exceed 250 VAC 5A The range of operation without additional antenna is about 30 m. The relays can operate in bistable or pulse mode, To control the drive of the entrance gate or the garage…