IoT Device Development

hacomono Inc.

We supported the development and mass production of a custom access control device for hacomono, a leading provider of digital solutions for fitness and wellness facilities in Japan.The device has been deployed in approximately 1,000 unmanned 24-hour gyms operated under the chocoZAP brand—a rapidly growing fitness chain by RIZAP Group—helping enable smooth and efficient facility management.

Music Gadget Development

InstaChord Inc.

We worked on the software design and implementation for KANTAN Play, a new musical gadget from the team behind InstaChord, the electronic instrument that made waves with its “anyone can play” concept.Using the M5Stack platform, we helped develop key features that shape the user experience—such as the embedded UI, MIDI control, and screen rendering.

LoRaWAN Unit Development Support

Infrastructure Safety Provider

We prototyped a LoRaWAN sensor device for a safety equipment company. It features temperature, humidity, and pressure sensors, with transmission intervals set by DIP switches. Button operations allow power control and manual data send. Using The Things Network, we provided comprehensive support including gateway setup, connection testing (OTAA/ABP), and data verification.

Wi-Fi Relay in Polar

We developed a compact Wi-Fi relay device that enables sensor data to be collected without USB connections, addressing the logistical challenges of research in polar environments. Built with the M5AtomS3, the device allows data to be wirelessly transmitted from loggers, making it easier to gather and analyze information in remote and harsh conditions where conventional setups are impractical.

Customization of Seeed reServer

For use in a healthcare AI evaluation environment, we customized the Seeed reServer to meet specific requirements. In addition to adding LTE connectivity, we sourced a compatible AC adapter despite slight plug size mismatches, expanded the SSD, and preinstalled the designated operating system. Our support covered the entire process—from coordinating with Seeed to secure components, to pre-shipment testing, and post-delivery kernel updates.

GNSS + LTE Board Prototype

Embedded Systems Company

We supported development of a compact GNSS-RTK positioning and LTE communication board powered by a lithium-ion battery. The design fits into a cigarette-pack-sized case, with optimized circuit and component layout. Firmware was also developed to send location data via LTE in a specified format. We handled MCU selection, board design, firmware implementation, and testing.

Monitoring Camera System Development Support

Happy Design Co., Ltd.

We supported the development of a monitoring camera system designed to enhance safety and oversight in elderly care environments. The system integrates with various built-in and external sensors. Switch Science handled the initial hearing, requirements definition, and hardware design and development of the camera device—including the enclosure, circuit board, and firmware. Mass production, as well as development of the monitoring web application and backend system, were carried out in collaboration with partner companies. The system runs on a Linux-based platform and supports PoE power supply. In response to on-site needs such as nighttime monitoring and wide-angle coverage, it was equipped with night mode functionality and a custom fisheye lens.
Collaborator: 83Design

Expansion Board Development

SORACOM, Inc.

We developed a new 3G expansion board for M5Stack as a reference device for SORACOM Air, a cellular connectivity service for IoT.By combining this board with the M5Stack product lineup, we enabled rapid prototyping of IoT devices.

New Product Manufacturing

Sony Business Solutions Inc.

We manufactured the MESH Bridge, a hub device designed to expand the use cases of MESH—a smart DIY electronics platform widely used in STEM education settings.By utilizing a compact and cost-effective single-board computer, we helped optimize hardware procurement costs.