SparkFun Pro Mini ATmega328-5V/16MHz Development Board Compatible with Arduino Boards and IDE

Price: $9.95
(as of Jan 25,2022 20:41:58 UTC – Details)

It’s blue! It’s thin! It’s the Pro Mini! SparkFun’s minimal design approach to microcontrollers. This is a 5V board running the 16MHz bootloader. Pro Mini, Compatible with Arduino, 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 IDE platform users start with the Arduino Uno R3. It’s a great board that will get you up and running quickly. The Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.We really wanted to minimize the cost of a board that is compatible with 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 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. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you’re supplying unregulated power to the board, be sure to connect to the “RAW” pin and not VCC.
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 16MHz with external resonator (0.5% tolerance)
No USB connection off board. Need FTDI board (or similar device) to program.
Supports auto-reset
5V regulator
Max 150mA output

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