ESP32-S3 Mini Dev Board 27 GPIO 240MHz

This LOLIN S3 Mini V1.0.0 development board implements the Espressif ESP32-S3FH4R2 SoC in a compact, cost-optimised layout. Designed for 3.3V DC operation only, it provides 27 digital I/O pins — each supporting interrupt, PWM, ADC, DAC, and peripheral functions — making it one of the most pin-rich mini-format S3 boards available. The 240MHz dual-core processor delivers measurable throughput gains over 160MHz predecessors, particularly in multitasked scenarios involving concurrent Wi-Fi scanning and sensor acquisition. Memory resources include 4MB flash and 2MB RAM — a balanced allocation favouring both persistent storage and runtime heap space. Comes pre-flashed with MicroPython, enabling instant serial-based interaction and file-based deployment. Built on standard PCB material with clear silkscreen marking for all critical nets and power rails. Suited to developers working under EC directives requiring traceability and component sourcing transparency — all passive parts and layout adhere to RoHS-compliant manufacturing. Intended for use with external serial adapters (CP2102/CH340 recommended), aligning with UK electronics distributors’ best-practice recommendations for developer kits. No onboard regulators, LEDs, or buttons — maximising routing space for user-defined circuitry. Single-board packaging meets Amazon UK Fulfilment by Amazon (FBA) dimensional requirements for small standard-size items — ensuring predictable shipping costs and warehouse handling across GB and EU fulfilment centres.