Description
Raspberry Pi Pico WH is a microcontroller board based on the Raspberry Pi RP2040 microcontroller chip.
The RP2040 microcontroller chip ('Raspberry Silicon') offers a dual-core ARM Cortex-M0+ processor (133 MHz), 256 KB RAM, 30 GPIO pins, and many other interface options. In addition, there is 2 MB of on-board QSPI flash memory for code and data storage.
Raspberry Pi Pico WH has been designed to be a low cost yet flexible development platform for RP2040 with a 2.4 GHz wireless interface using an Infineon CYW43439. The wireless interface is connected via SPI to the RP2040.
Features of Pico WH
- RP2040 microcontroller with 2 MB of flash memory
- On-board single-band 2.4 GHz wireless interfaces (802.11n)
- Micro USB B port for power and data (and for reprogramming the flash)
- 40 pin 21 x 51 mm 'DIP' style 1 mm thick PCB with 0.1' through-hole pins also with edge castellations
- Exposes 26 multi-function 3.3 V general purpose I/O (GPIO)
- 23 GPIO are digital-only, with three also being ADC capable
- Can be surface mounted as a module
- 3-pin ARM serial wire debug (SWD) port
- Simple yet highly flexible power supply architecture
- Various options for easily powering the unit from micro USB, external supplies or batteries
- High quality, low cost, high availability
- Comprehensive SDK, software examples and documentation
- Pre-populated headers and 3-pin debug connector
Features of the RP2040 microcontroller
- Dual-core cortex M0+ at up to 133 MHz
- On-chip PLL allows variable core frequency
- 264 kByte multi-bank high performance SRAM
- External Quad-SPI Flash with eXecute In Place (XIP) and 16 kByte on-chip cache
- High performance full-crossbar bus fabric
- On-board USB1.1 (device or host)
- 30 multi-function general purpose I/O (four can be used for ADC)
- 12-bit 500 ksps analogue to digital converter (ADC)
- Various digital peripherals
- 2x UART, 2x I²C, 2x SPI, 16x PWM channels
- 1x timer with 4 alarms, 1x real time clock
- 2x programmable I/O (PIO) blocks, 8 state machines in total
- Flexible, user-programmable high-speed I/O
- Can emulate interfaces such as SD card and VGA
Note: Raspberry Pi Pico W I/O voltage is fixed at 3.3 V.
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