{"title":"SparkFun BlackBoard","handle":"sparkfun-blackboard","url":"/products/sparkfun-blackboard","description":"The SparkFun BlackBoard is an Arduino Uno-compatible development board with a range of improvements over the standard Uno. It features the CH340G USB-to-serial converter for broad driver compatibility, a reinforced through-hole micro-B USB connector, an upgraded 600 mA 3.3V regulator with thermal and reverse circuit protection, and a Qwiic I2C connector for quick connection to I2C peripherals.\n\nAdditional refinements include extra decoupling capacitance for improved ADC sensitivity, dimmed indicator LEDs, 3.3V voltage translation on the Qwiic connector, and an I/O voltage jumper that lets advanced users switch the board to 3.3V operation. It comes pre-loaded with the Optiboot bootloader and programs as \"Arduino/Genuino Uno\" in the Arduino IDE.\n\nKey Features\n\n\nMicrocontroller – ATmega328P with Optiboot bootloader\n\nDigital I/O – 14 pins (6 with PWM)\n\nAnalog Inputs – 4 usable (A0–A3; A4/A5 have I2C pull-ups)\n\nCommunication – UART, SPI, I2C (with Qwiic connector)\n\nUSB-to-Serial – CH340G with reinforced micro-B connector\n\n3.3V Regulator – 600 mA with thermal and reverse protection\n\nQwiic Connector – 3.3V-translated I2C for plug-and-play sensors\n\nI/O Voltage Jumper – Switchable between 5V (default) and 3.3V operation\n\nPower Input – USB or barrel jack (7–15V DC)\n\nSMD ISP Header – For SPI shield connections\n\n\n\nNote: Avoid using A4/A5 for analog-to-digital conversion. The Qwiic connector uses these pins for I2C with external 2.2 kΩ pull-up resistors, which will affect ADC readings. A0–A3 work normally.\n\n\nIdeal For\n\nArduino projects requiring improved power regulation\nQuick prototyping with Qwiic I2C sensors and peripherals\n3.3V-sensitive shield and peripheral applications\nLearning and education with Arduino\n\n\nPackage Contents\n\n1× SparkFun BlackBoard\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5476,"title":"Default Title","sku":"SF-SPX-14669","price":39.14,"on_sale":false,"in_stock":true,"available_quantity":3,"option1":"Default Title"}]}