The main chip on board is the RP2040 made by Raspberry Pi and is a dual-core ARM Cortex M0+ processor, with a flexible clock running up to 133MHz. WiFi is enabled via the use of an Infineon CYW43439.
- RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
- Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz
- 264kB of SRAM, and 2MB of onboard Flash memory
- Infineon CYW43439 wireless chip
- IEEE 802.11n wireless LAN
- Bluetooth 5.2
- WPA3
- SoftAP (up to 4 clients)
- Onboard antenna licenced from ABRACON (connected via SPI to the RP2040)
- Castellated module allows soldering directly to carrier boards
- USB 1.1 Host and Device support
- Low-power sleep and dormant modes
- Drag & drop programming using mass storage over USB
- 26 multi-function GPIO pins
- 2×SPI, 2×I2C, 2×UART, 3×12-bit ADC, 16×controllable PWM channels
- Real-time clock (RTC)
- Temperature sensor
- Accelerated floating-point libraries on-chip
- 8×Programmable IO (PIO) state machines for custom peripheral support
- Dimensions (WxLxH) 21mm x 51.3mm x 3.9mm
