A Hardware Engineering Company
US Input Company
Engineering exceptional input devices through precision hardware design, low-level protocol optimization, and American manufacturing excellence.
usb | hid | mcu | firmware | manufacturing
What We Do
C++ / Embedded Firmware
Production firmware in C++ for ARM Cortex-M, Arduino platforms, and custom silicon. Bare-metal and RTOS implementations with sub-microsecond timing precision.
USB Composite Devices
Multi-function composite device development: HID + CDC + custom class combinations. Full descriptor engineering and endpoint optimization.
Serial & Protocol Engineering
UART, SPI, I2C, and custom serial protocols. High-speed data transfer optimization with DMA and interrupt-driven architectures.
Device Authentication
Ed25519 cryptographic authentication with registered device identities. Secure boot, firmware signing, and anti-counterfeit verification.
Signal Processing
Interpolation, resampling, and drift-optimization algorithms. Sub-pixel motion tracking and sensor fusion for exceptional input fidelity.
3PL Flash Services
Firmware provisioning interfaces for third-party logistics. Secure flash programming, serial number injection, and production line integration.
Technical Consulting
Expert guidance on embedded systems architecture, security best practices, and complex system design. Code reviews, architecture audits, and optimization strategies.
Manufacturing & QA
End-to-end production support from prototype to mass manufacturing. Test fixture development, quality assurance protocols, and yield optimization.
Rebind
We build Rebind, a programmable layer for keyboard and mouse input. Start with the free software Engine; add Rebind Link for physical USB output.
ExploreOur Stack
language
C / C++
language
Rust
mcu
ARM Cortex-M
mcu
RISC-V
platform
Arduino
protocol
USB 2.0 FS/HS
protocol
USB 3.x SS
usb
HID / CDC Class
bus
I2C / SPI / UART
hardware
DMA Transfer
firmware
RTOS / FreeRTOS
security
Ed25519 Crypto
industries served
- Gaming & Esports Peripherals
- Accessibility & Assistive Devices
- Industrial HMI / Control Interfaces
- Medical Input Devices
- Custom OEM Solutions
Designed & Manufactured in the USA
Domestic production with full supply chain visibility and quality control.
By the Numbers
<1ms
Input Latency
End-to-end response time
8000
Polling Rate
Hz maximum report rate
100%
USA Manufacturing
Domestic production
24-48h
Response Time
Initial inquiry turnaround
How We Work
Discovery Call
30-minute technical consultation to assess requirements, constraints, and feasibility. NDA executed prior to detailed discussions.
POC Development
Proof-of-concept firmware and hardware prototype. Typically 2-4 weeks. Validates core functionality and performance targets.
Production Engineering
DFM optimization, test fixture development, and manufacturing documentation. 3PL flash interface integration if required.
Manufacturing & Support
Production coordination with domestic partners. Ongoing firmware updates, revision management, and technical support.
Client IP Ownership
All custom work product is owned by the client upon final payment. We execute NDAs prior to detailed project discussions.
Start a Project
Whether you need custom USB firmware, a complete input device design, or protocol optimization consulting, we are here to help.
typical timelines
POC Firmware: 2-4 weeks
Production Hardware: 8-12 weeks
Min. Production Run: 100 units
location
United States