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Affordable MicroFlex MCUs based on various ESP32 modules

Dec 9, 2023 — by Giorgio Mendoza 383 views

SB-Components announced this week on Kickstarter the launch of its MicroFlex MCU series, a line of compact microcontroller boards each designed to address specific application scenarios, such as sensor networks, portable devices, smart home control systems, IoT solutions, and wearables.

This series comprises five distinct boards featuring the ESP32 S3, ESP32 S2, ESP32 C3, ESP32 C6, and Raspberry Pi Pico RP2040 microcontroller.

MicroFlex MCUs comparison table
(click image to enlarge)

Technical Specifications and Capabilities:

  • ESP32 C6 MCU Development Board:
    • SoC: Ultra-low-power with RISC-V single-core microprocessor.
    • Connectivity: 2.4 GHz Wi-Fi 6 (802.11ax), Bluetooth 5 (LE), Zigbee, Thread (802.15.4).
    • Features: Castellated module for direct soldering, onboard RGB LED, Boot & Reset button

Micro-C6 board
(click image to enlarge)

  • ESP32 S3 MCU Development Board:
    • Processor: High-performance dual-core microprocessor (Xtensa 32-bit LX7).
    • Connectivity: IEEE 802.11b/g/n (2.4 GHz Wi-Fi) and Bluetooth 5 (LE).
    • Features: Onboard RGB LED, Boot & Reset button, GPIOs breakout, USB Type-C interface

Micro-S3 board
(click image to enlarge)

  • ESP32 S2 MCU Development Board:
    • Processor: Xtensa Single­ Core 32-bit LX7 Microprocessor.
    • Connectivity: IEEE 802.11b/g/n (2.4 GHz Wi-Fi).
    • Features: Onboard RGB LED, Boot & Reset button, GPIOs breakout, USB Type-C interface

Micro-S2 board
(click image to enlarge)

  • ESP32 C3 MCU Development Board:
    • Processor: Ultra-low-power SoC with RISC-V Single-Core CPU.
    • Connectivity: 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE).
    • Features: Optional 4 MB flash, onboard RGB LED, Boot & Reset button.

Micro-C3 board
(click image to enlarge)

  • Pico RP2040 MCU Development Board:
    • Processor: Symmetric dual-core processor complex.
    • Features: Onboard RGB LED, Boot Button, programmable button, USB Type-C interface, castellated module.

Micro-RP board
(click image to enlarge)

Moreover, each board in the series is compatible with standard protocols like SPI, I2C, I2S (excluding the Micro-RP model), UART, and 12-bit ADCs. Unlike the other board, the Micro-S2 stands out by offering 2x 13-bit SAR ADCs and a 2x 8-bit DAC.

The MicroFlex series supports various coding environments, including C/C++, MicroPython, Arduino IDE, and ESP-IDF, providing flexibility for developers with different programming preferences.

Micro Development Kit
(click image to enlarge)

Complementing the MicroFlex MCU series, the Micro Development Kit offers a 170-pin breadboard, 1.3” LCD, programmable LEDs and buttons, an onboard buzzer, a potentiometer, and additional power supply breakout pins. This kit is aimed at providing a comprehensive development platform for technical experimentation and prototyping.

MicroFlex MCUs boards
(click image to enlarge)

Further information

The pricing of the boards in the MicroFlex MCU series varies, with the RP2040-based board starting at £5 and the ESP32 S3-based microcontroller priced at £7. Additionally, the standalone Micro Development Kit is advertised for £15, and the comprehensive Micro Development Combo Kit is listed for £45. The product page can be found on Kickstarter.

(advertise here)

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