The most important part is the construction of a functional sample of a Arduino Uno software-defined one transmitter. After agreement with the supervisor and current options, she was elected concept with SI4713 digital circuit for FM band 76-108 MHz. first the point of practical implementation is a block design with the necessary description of the…
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…
Data logger project ADuC831 Datalogger Circuit data measurement in processes and followed by a microprocessor equipped with a datalogger based on one from the economical I51 series microcontrollers. Data logger control was implemented via RS232, RS485 or USB interface. The Datalogger is equipped with analog modules for temperature and atmospheric pressure measurements. The measured data…
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…
USB programmer There are few components – the ATtiny45 microcontroller, two Zener diodes, a capacitor and several resistors. Of course, there are still connectors – USB plug and IDC-6 plug. Resistor R1 informs host about presence of USB device transmitting data in Slow mode. The resistors R2 and R3 in combination with D1 and D2…
ATtiny25 Programmable Timer To describe the operation of the device, we will use an example – control of the electromagnetic bolt mounted in the wicket. In the simplest version we require that the push button attaches the bolt electromagnet for a certain length of time, sufficient to reach the gate. Then, the solenoid should be…
The presented layout is a snap on a computer for measuring DHT22 temperature and humidity. It measures the temperature from -40 to 80 ° C with a resolution of 0.1 ° C and accuracy of 0.2 ° C and humidity from 0 to 100% with a resolution of 0.1% and accuracy of 2%. The device…