This board will able to connect led light and sound?

It can be used the same as any Arduino, it just has fewer inputs and outputs. It also needs any headers you want to use soldered on.

Where can I get a schematic for this board?

Sparkfun, https://www.sparkfun.com/products/11113

150mA output? I see that these have a max output of 150ma- is that total? Digital? Analog? I am looking to run 27 charlieplexed LEDs in open heart

150 mA is the limit for the onboard voltage regulator. The Pro Mini should have no trouble driving 27 Charliplexed LEDs directly because it's only turning on a few LEDs at time.

Does this board include the 3 pin headers for programming and breadboard mounting?

This board does not include any headers. Many of our customers already have headers or prefer to choose what they want to put on the board.

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Pro Mini ATmega328-5V/16MHz Development Board | SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.

Product ID: 1921105

Details

Brand
SparkFun
Model Name
Pro Mini
Connectivity Technology
I2C SPI
Operating System
FreeRTOS
CPU Manufacturer
Atmel

⚡16MHz high-speed processor

🔄Auto-reset support for seamless programming

🔋5V regulator with 150mA output

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$U1104

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your innovation with SparkFun Pro Mini — small board, big impact!

ROBUST 5 V POWER REGULATION - Reliable 5V regulator delivering up to 150mA ensures stable performance under load.
BLAZING 16 M HZ A TMEGA 328 CORE - Experience lightning-fast processing with a precision 0.5% external resonator.
COMPACT LIGHTWEIGHT DESIGN - At just 0.176 oz and 1.3 x 0.71 inches, it fits perfectly into any sleek project.
EFFORTLESS AUTO RESET PROGRAMMING - Simplify your workflow with built-in auto-reset support—no manual resets needed.
SEAMLESS ARDUINO IDE COMPATIBILITY - Plug into your favorite development environment and start coding instantly.

The SparkFun Pro Mini is a compact, lightweight development board featuring an ATmega328 processor running at 16MHz with a precise external resonator. Designed for Arduino IDE compatibility, it includes a 5V regulator capable of delivering up to 150mA and supports auto-reset for streamlined programming. Ideal for professionals seeking a reliable, high-performance microcontroller platform in a minimalist form factor.

Specifications

RAM	SRAM
Brand	SparkFun
Series	Pro Mini
Item model number	Pro Mini 5V/16MHz
Operating System	FreeRTOS
Item Weight	0.176 ounces
Product Dimensions	1.3 x 0.71 x 0.03 inches
Item Dimensions LxWxH	1.3 x 0.71 x 0.03 inches
Color	Blue
Processor Brand	Atmel
Number of Processors	1
Manufacturer	SparkFun Electronics
ASIN	B004G53J5I
Is Discontinued By Manufacturer	No
Date First Available	December 13, 2010

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