Freeduino

FreeduinoModules of the Freeduino series are represented by several varieties of circuit boards. They have almost identical functions and are fully compatible with similar varieties of the Arduino series that is already well known.The most popular varieties include: Freeduino MaxSerial, Freeduino Through-Hole, Freeduino 2009, and Freeduino Nano v5.There are also some additional modules on the market, for instance, Motor Shield. It is a power module for controlling engines. Another example is Ethernet Shield used for connecting Ethernet interface to your board.Freeduino modules are based on ATmega168 microcircuit (sometimes it's ATmega328). They can be easily programmed through a USB port (in the MaxSerial variety a COM port can be used) with the help of free software.A module has 14 digital input/output contacts. Six of them can be used for output of PWM signals. The six analogue ADC outputs have the length of 1024 digits.A Freediuno module also has a quartz resonator for 16 MHz. There is a USB port (or a COM port in the MaxSerial variety), a Mini-Jack power socket, a reset button, and a socket for connecting an external ICSP programmer. These modules have everything necessary for development of microcontroller devices. All you need is connect the circuit board to a PC with the help of a standard USB cable.You can also connect any peripheral devices from LED lights and basic sensors to radio-controlled mechanisms and robots. The software is written in simple and intuitive language similar to C (you can add third-party libraries, for instance, to control LCD displays or engines). Then the software is compiled and loaded into the device with a push of the "Upload" button. Thus, you instantly get a working autonomous device.

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