KAGA FEI Unveils Compact ES4L15MA1 Bluetooth LE 6.0 Module

KAGA FEI, a Japanese technology firm, has introduced the ES4L15MA1, a highly compact Bluetooth LE 6.0 module that leverages Nordic Semiconductor's nRF54L15 ultra-low-power Cortex-M33 wireless MCU. This new module, which measures just 8.55 x 3.25 x 1.00 mm, is designed to streamline product development for IoT devices by offering ready-to-use embedded software that includes a command-based API via UART.

Alongside the larger EC4L15MA1 module, the ES4L15MA1 shares similar hardware but distinguishes itself with its pre-integrated software, enabling quicker development cycles and reduced costs for manufacturers. Key specifications include a 256KB SRAM, 1.5MB of non-volatile storage, and support for various data rates up to 2Mbps, making it an attractive option for developers seeking efficient Bluetooth connectivity solutions.

Source: CNX Software – Embedded Systems News (https://www.cnx-software.com/2026/08/20/kaga-fei-es4l15ma1-is-a-ridiculously-small-ready-to-use-ble-6-0-module-based-on-nordic-nrf54l15-soc/)