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Arduino Mini
[ARD-MINI]

 23.00EUR - 25.00EUR 

Arduino Mini is a small microcontroller board based on the ATmega168 (datasheet), intended for use on breadboards and when space is at a premium. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, and a 16 MHz crystal oscillator. It can be programmed with the Mini USB adapter or other USB or RS232 to TTL serial adapter.

Summary

Microcontroller ATmega168
Operating Voltage 5V
Input Voltage 7-9 V
Digital I/O Pins 14 (of which 6 provide PWM output)
Analog Input Pins 8 (of which 4 are broken out onto pins)
DC Current per I/O Pin 40 mA
Flash Memory 16 KB (of which 2 KB used by bootloader)
SRAM 1 KB
EEPROM 512 bytes
Clock Speed 16 MHz

Programming

The Arduino Mini can be programmed with the Arduino software (download). For details, see the reference and tutorials.

To program the Arduino Mini, you will need a Mini USB adapter or other USB or RS232 to TTL serial adapter. See the page on getting started with the Arduino Mini for instructions.

The ATmega168 on the Arduino Mini comes preburned with a bootloader that allows you to upload new code to it without the use of an in-system-programmer. The bootloader communicates using the original STK500 protocol (reference, C header files).

You can also bypass the bootloader and program the ATmega168 with ICSP (In-Circuit Serial Programming); see the page on bootloading the Mini for information on wiring up an ICSP header to the Mini and the programmer for instructions on using a programmer to upload a sketch.

Input and Output

Each of the 14 digital pins on the Mini can be used as an input or output. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. Pins 3, 5, 6, 9, 10, and 11 can provide PWM output; for details see the analogWrite() function. If anything besides the Mini USB (or other) adapter is connected to pins 0 and 1, it will interfere with the USB communication, preventing new code from being uploaded or other communication with the computer.

The Mini has 8 analog inputs, each of which provide 10 bits of resolution (i.e. 1024 different values). Inputs 0 to 3 are broken out onto pins; input 4 to 7 require soldering into the provided holes. By default the analog inputs measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and some low-level code.

See also the mapping between Arduino pins and ATmega168 ports.

Pinout

 

Pin out of the Arduino Mini 04. (Note that the ground pin on the left has moved down one pin.)

Note: The pinout changed from version 03 to version 04 of the Mini, please be ure you use the right diagram.

 

Schematic

Schematic of the Arduino Mini 03

Schematic of the original Arduino Mini

 

Warning
Don't power the Arduino mini with more than 9 volts, or plug the power in backwards: you'll probably kill it.

QuantityPrice
1+ 25.00EUR
10+ 23.00EUR
For more information, please visit this products webpage.
This product was added to our catalog on Tuesday 11 March, 2008.
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