ESP-8266 NodeMCU OLED Module

Raspberry Pi Pico

• Processor: Dual-core ARM Cortex M0+, 133MHz flexible clock.
• Storage: 264KB SRAM, 2MB onboard Flash memory.
• GPIO: 26 multifunction pins, including 3 analog inputs.
• Interfaces: 2× SPI, 2× I2C, 2× UART, 3× ADC, 16× PWM.
• Power: USB Type-C, supports 1.8–5.5V DC input.