SparkFun Pro Micro RP2040 Microcontroller Board Products

Created: 11Sep2024 00:42:22 UTC 2024-09-11T00:42:22Z
Updated: 17Sep2024 06:37:07 UTC 2024-09-17T06:37:07Z

Description

The SparkFun DEV-18288 Pro Micro microcontroller board breaks out the RP2040 MCUMicrocontroller Unit with a small Pro Micro footprint (1.3in x 0.7in). The board includes a 16MB external QSPIQuad Serial Peripheral Interface (QSPI) is a serial communication interface designed for talking to flash chips by using 4 data lines. flash chip to store program code, USB-C connector for power and programming, addressable RGBRed Green Blue LEDLight Emitting Diode, boot button, reset button, QwiicQwiic connectors are SparkFun's name for 4-pin JST SH connectors with 1.0mm pitch. These connectors were implemented on SparkFun boards to make it easy to plug-n-play various sensors and devices without soldering and wiring. Qwiic is cross-compatible with Adafruit's STEMMA QT connectors. connector, USB-C, resettable PTCPositive Temperature Coefficient fuse, and castellated pads.

Processor

RP2040 Dual-Core 32-bit Cortex M0+ processors up to 133MHz

Memory

16MB QSPIQuad Serial Peripheral Interface (QSPI) is a serial communication interface designed for talking to flash chips by using 4 data lines. Flash Chip
264KB SRAMStatic Random Access Memory

I/OInput/Output

1x USB-C connector (USB 1.1 Host or Device Full/Low speed)
20x Digital I/OInput/Output with 10x 16-bit PWMPulse-Width Modulation (3.3V Logic)
4x analog input pins 12-bit 500ksps ADCAnalog-to-Digital Converter (ADC, A/D, or A-to-D) (0V to 3.3V range)
Communication Interfaces (3.3V Logic): 2x UARTUniversal Asynchronous Receiver-Transmitter, 1x I2CInter-Integrated Circuit. Also referred to as IIC or I²C. (1x Qwiic Connector), and 1x SPISerial Peripheral Interface (3.3V Logic)
SWDSerial Wire Debug pins on the back of the board

User Interface

1x Boot Button
1x Reset Button
1x Red Power LED
1x WS2812 Addressable RGB LED

Power

The board can be powered by the USB-C connector. There are also several power related pins.

V is the voltage provided from the USB connector.
+ is the raw, unregulated voltage input for the Pro Micro RP2040. If the board is powered via USB (i.e., V), the voltage at this pin will be about 4.8V (USB's 5V minus a Schottky diode drop). On the other hand, if the board is powered externally, through this pin, the applied voltage can be up to 5.3V.
3V3 is the voltage supplied to the on-board RP2040. A regulated 3.3V is recommended when connecting to this pin. If the board is powered through the raw "+" pin, this pin can be used as an output to supply 3.3V other devices.
RST can be used to restart the microcontroller. There is a built-in reset button to reset the board. However, the pin is broken out if you need to access this pin externally. This pin is pulled high by a 10kΩ resistor on the board, and is active-low, so it must be connected to ground to initiate a reset. The board will remain "off" until the reset line is pulled back to high.
GND is the common/ground/0V reference.

Board Size