About bitset Inc.

A systems development company in Osaka, Japan, building purpose-built hardware and software since 2017.

Who We Are

bitset Inc. (株式会社 bitset) is a systems development company based in Takatsuki, Osaka. We specialize in embedded systems, IoT integration, and professional AV devices — building products that bridge the gap between general-purpose computing and dedicated, reliable hardware.

Our product lines serve live event production teams, smart home developers, network QA engineers, and anyone who needs hardware that "just works" without the overhead of managing a full PC stack. From the Pondashi-kun instant playback series to the AGGRESSOR NETWORK fault emulator, every product reflects our belief that purpose-built appliances outperform improvised laptop setups when reliability matters.

We work across the full stack — custom firmware, Linux system software, 3D-printed enclosures, and web-connected services — always grounded in open standards like ECHONET Lite, PCAP, and USB so our tools integrate with what professionals already use.

Our Philosophy

The principles that shape every product and project.

Appliance Simplicity

機器のシンプルさ

Products should work like dedicated appliances — power on, it works. No babysitting, no general-purpose OS complexity.

Hardware Trust

ハードウェアの信頼性

Physical buttons and dedicated devices give operators tactile feedback and repeatability that software alone cannot match.

Field-Ready Design

現場対応設計

Every product must survive real-world conditions: mobile battery power, harsh environments, and ad-hoc deployments.

Open Standards

オープン標準

PCAP, ECHONET Lite, USB, HDMI — we build on standards so our tools integrate with your existing workflow.

Company History

Key milestones in our journey.

2017

bitset Inc. Founded

Established in Takatsuki, Osaka as a systems development company specializing in embedded hardware and software.

2017

Pondashi-kun Audio Launch

Released the first Pondashi-kun — an instant audio cue playback device built for live event reliability.

2018

Pondashi-kun Video & Network

Expanded the product line to Full HD video playback and LAN-based multi-monitor synchronized control.

2018

Pondashi-kun Mini & Signage

Introduced the ultra-compact Mini player and VESA-mount Signage variant for digital display installations.

2019

ECHONET Lite Tools

Entered the smart home space with ECHOSET (device emulator) and egREC (packet recorder) for ECHONET Lite development.

2020

AGGRESSOR NETWORK

Released a hardware network emulator for controlled fault injection — delay, loss, corruption, and bandwidth throttling.

2024

Continuing Innovation

Ongoing development in embedded systems, IoT protocols, and professional AV infrastructure.

Technology Stack

The tools and platforms we work with.

Hardware & Embedded

Raspberry Pi ARM Cortex HDMI USB GPIO SPI/I2C 3D Printing VESA Mount

Programming

C/C++ Python Rust TypeScript Node.js React Bash/Shell

Protocols & Standards

ECHONET Lite TCP/IP UDP PCAP Wi-Fi Ethernet DHCP

Tools & Platforms

Linux Docker Git Wireshark Google Drive API GitHub Actions