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Specifications:
| Dimensions | 21mm × 51mm |
| SoC | Raspberry Pi RP2040 (dual-core Arm Cortex-M0+ @ 133MHz) |
| RAM | 264KB (on-chip) |
| Storage | 2MB (on-board QSPI flash) |
| Interfacing | 26 GPIO pins, including 3 analogue inputs |
| Peripherals | 2× UART, 2× SPI controllers, 2× I2C controllers, 16× PWM channels, 1× USB 1.1 controller and PHY (with host and device support), 8× PIO (Programmable I/O) state machines |
| Connectivity | 2.4GHz 802.11b/g/n Wi-Fi (on-board antenna using Infineon CYW43439) |
| Input power | 1.8 - 5.5V DC |
| Operating temperature | -20°C to +70°C |