It's blue! It's thin (0.8mm)! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. This is a 3.3V Arduino running the 8MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Uno R3. It's a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (3.3V), lack of connectors, and USB off board.

We really wanted to minimize the cost of an Arduino. In order to accomplish this we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work.

The latest and greatest version of this board breaks out the ADC6 and ADC7 pins as well as adds footprints for optional I2C pull-up resistors! We also took the opportunity to slap it with the OSHW logo.

ATmega328 running at 8MHz with external resonator (0.5% tolerance)
Low-voltage board needs no interfacing circuitry to popular 3.3V devices and modules (GPS, accelerometers, sensors, etc)
USB connection off board
Weighs less than 2 grams!
Supports auto-reset
3.3V regulator
Max 150mA output
Over current protected
Reverse polarity protected
DC input 3.3V up to 12V
On board Power and Status LEDs
Analog Pins: 8
Digital I/Os: 14
Dimensions: 18x33mm
Wattuino pro mini adv 5V/16MHz
Wattuino pro mini adv 5V/16MHz
434MHz Web Bridge Small / Low Budget

#2 - 434MHz Web Bridge Small / Low Budget

This project is a combination of an Arduino, an Electric Imp and a 434MHz RF-Link, to allow you to control remote power sockets via webhooks.

von tkramm
am 12.07.2013
433MHz PIR

#3 - 433MHz PIR

433MHz PIR

von tkramm
am 17.07.2013
Supplier Prices Link
Antratek Electronics from 1: 12.040€


Analoge Eingänge: 6
Breite: 18mm
Digitale I/O Pins: 14
EEPROM: 512byte
Eingangsspannung (limit): 3,35-12V
Flash Speicher: 16kb
Länge: 33mm
Mikrocontroller: ATmega328
PWM Pins: 6
Spannung: 3,3V
SRAM: 1kb
Strom pro I/O Pin: 40mA
Taktfrequenz: 8MHz


Best Price 12.04 €
Best Bulk Price 12.04 €
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2 Projects use this part.
Created: 2013-04-04 12:38:01
Last Update: 2013-10-20 10:48:41


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