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Dosimeter modeled on the Open Geiger project

The author developed his version of the dosimeter based on the Open Geiger project.. The device presented here is largely compatible with the prototype., and also has its advantages. As for the hardware, copyright input is mainly limited to the development of a new circuit board with… Continue Reading

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Meter battery capacity

Meter battery capacity

Most of today's portable electronic devices draw power from the batteries, which have a limited life. Each charging and discharging cycle in small steps helps to demolition and battery "battery holds less". Presented device can measure the energy efficiency of the battery and to determine its consumption.… Continue Reading

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Universal programmer for AVR microcontrollers

Universal programmer for AVR microcontrollers

Despite the appearance on the market of many modern microcontrollers, Atmel company crystals remain very popular and affordable. To program these microcontrollers enough to have a simple programmer, literally composed of several elements. Previously, programmers connected to the serial or parallel port (Centronics). Now… Continue Reading

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Automatic charger microcontroller ATTINY24

The charger microcontroller ATTINY24

The charger monitors the battery charging process and sets its optimal parameters. The whole cycle is divided into 4 phase, switches automatically depending on the battery charge. When the battery reaches the desired voltage, Charging stops automatically. Three LEDs indicate battery status and level of… Continue Reading

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Dephaser AC motor isolating

Dephaser AC motors isolating

engine speed control can be connected to the microcontroller easy and secure way with galvanic isolation on the optocoupler. Phase regulator enables power control of the AC motor, For example, power tools. On the control input receives the PWM voltage signal 0 … + 5AT. Also, In the… Continue Reading