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Features Mikrocontroller RP 2040 OHNE Betriebssystem Powered 5V Intern 3.3V Dual-Core ARM Cortex M0+ Prozessor / 133 MHz 264 kB SRAM und 2 MB on-board Flash-Speicher USB 1.1 Host- und Device-Unterstützung Stromsparende Sleep- und Dormant-Modi Drag-and-Drop-Programmierung mit Massenspeicher über USB 26x multifunktions-GPIO-Pins 2x SPI, 2x I²C, 2x UART, 3x 12-bit ADC, 16x steuerbare PWM-Kanäle Genaue Uhr und Timer auf dem Chip Temperatursensor KEIN WiFi, KEIN Bluetooth KEIN Betriebssystem

Special Pins:

VSYS:	is the main system input voltage, which can vary in the allowed range 1.8V to 5.5V, and is used by the on-board
SMPS:	to generate the 3.3V for the board and its GPIO.
3V3_EN:	connects to the onboard SMPS enable pin, and is set to high (to VSYS) connected through a 100K resistor. To disable the 3.3V(which also de-powers the RP2040), short this pin low.
3V3:	is the main 3.3V supply to the board and its I/O, generated by the on-board SMPS. This pin can also be used to power external components.
ADC_VREF:	is the ADC pin power supply voltage, and is generated by filtering the 3.3V supply coming through the board.
AGND:	is the ground reference for GPIO26-29, there is a separate analog ground plane running under these signals and terminating at this pin. If the ADC pins are not used or ADC performance is doesn’t matter, this pin can be connected to digital ground.
RUN:	is the RP2040 enable pin, and has an internal (on-chip) pull-up resistor to 3.3V of about ~50K Ohms. To resetRP2040, short this pin low.

 

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