OTTER TECH LLC is an American hardware engineering firm based in Manchester, New Hampshire, specializing in end-to-end embedded product development, custom PCB layout, low-power IoT sensor hardware, embedded firmware programming, wireless communication integration, and prototype-to-production support for startups, industrial OEMs, medical equipment developers, and environmental monitoring operators across New England. Our ocean blue brand identity symbolizes reliable low-power electronics, robust wireless connectivity, iterative hardware testing, and stable long-running embedded devices deployed in remote and harsh field environments. Every printed circuit board, embedded firmware stack, wireless sensor node, and prototype design engineered by Otter Tech follows IPC PCB standards, FCC wireless emission regulations, and industry best practices for low-energy battery-powered hardware. We deliver a fully integrated hardware development workflow for product creators: schematic capture & custom PCB layout, low-power embedded firmware development for ARM and microcontroller platforms, LoRaWAN, BLE, Wi-Fi wireless module integration, hardware prototype fabrication and validation, environmental hardware testing, design for manufacturing (DFM) optimization, documentation for certification, and technical support during mass production ramp-up. Our engineering studio, electronic test lab, prototyping workspace and administrative office are located at 400 Tory Rd, Manchester, NH 03104, centrally positioned in southern New Hampshire with quick highway access to clients in NH, Massachusetts, Vermont and Maine. Our team consists of experienced electrical engineers, PCB designers, embedded firmware developers and hardware test specialists equipped with signal analysis equipment, environmental test chambers, and SMD prototyping tools. Our standard engagement workflow begins with initial product requirement consultation, architecture selection, schematic and PCB design, firmware implementation, lab validation, prototype iteration, DFM review for manufacturing partners, and continued technical consulting through certification and production launch. Hardware designs delivered by Otter Tech extend device battery life and reduce field failure rates for remote monitoring, industrial sensing and portable embedded products.
Request Hardware Development ConsultationOTTER TECH LLC is a registered limited liability company located at 400 Tory Rd, Manchester, NH, US 03104. Founded by senior electrical and embedded software engineers with over 29 combined years developing low-power IoT hardware, industrial sensor electronics and battery-operated embedded systems for North American product companies. Otter Tech was formed to fill a regional market gap: many software-focused firms lack hands-on PCB and embedded firmware expertise, while large contract design houses carry high minimum project costs out of reach for smaller OEMs and early-stage product startups. All engineering staff hold practical experience working with microcontroller architectures including STM32, ESP32, PIC and Nordic nRF series, with deep knowledge of low-current power management, analog sensor signal conditioning, and wireless communication stacks. Every new project starts with detailed requirement gathering: power budget targets, environmental operating range, wireless range requirements, regulatory certification goals, enclosure constraints and production volume forecasts. Inside our Manchester lab we carry out continuous hardware validation, thermal testing, battery drain profiling, and wireless range testing to uncover design flaws before prototypes move to manufacturing. Our primary competitive advantage is full-stack embedded engineering capability covering both hardware and firmware, fully local design lab in Manchester New Hampshire, iterative low-volume prototyping support, and flexible project sizing for startups up to established industrial OEMs. Other regional tech businesses focus on factory automation, e-waste recycling, plant layout design or IT services without specialized knowledge of PCB design, low-power firmware and wireless IoT hardware development. Otter Tech unites schematic capture, PCB layout, embedded software, sensor integration, prototyping and DFM consulting under one local New Hampshire facility. Our secure project archive stores all schematic files, PCB source data, firmware source code and test reports for easy revisions as product requirements evolve. From our Tory Road office our engineering team can travel to client facilities throughout New England for on-site technical reviews and hardware integration testing. We offer three tiered service packages scaled by project complexity: Starter Prototype Package – schematic, two-layer PCB design + basic firmware for proof-of-concept sensor hardware; Standard IoT Product Package – multi-layer PCB, low-power firmware, wireless integration, lab validation and DFM documentation; Enterprise Industrial Package – high-reliability embedded system design, extended environmental testing, FCC pre-certification support, long-term production engineering support and design variation management. All engineering source files and project documentation are securely hosted on United States servers.
Multi-layer printed circuit board development, impedance control routing, analog signal conditioning layout, power supply design, IPC-compliant board layout, DFM checks to simplify mass manufacturing, support for SMD and through-hole component assemblies for industrial and battery-powered devices.
C/C++ firmware for ARM Cortex-M, ESP32, Nordic nRF and PIC microcontrollers. Focus on sleep-mode optimization, precise battery power budgeting, sensor data sampling logic, fault handling, and over-the-air (OTA) firmware update frameworks for remote IoT nodes.
Hardware and software integration for BLE 5.x, Wi-Fi, LoRaWAN, sub-GHz long-range radio modules. Antenna layout optimization, wireless range testing, radio emission pre-evaluation to streamline FCC certification for connected sensor products.
Circuit design for temperature, vibration, pressure, humidity and voltage monitoring sensors. Filter design, noise reduction circuitry, amplification and isolation solutions for industrial and environmental monitoring embedded hardware.
Small-batch prototype assembly, bench testing, power consumption profiling, thermal cycling evaluation, wireless range characterization, fault injection testing, and detailed test reports documenting hardware performance across operating conditions.
PCB revision to reduce assembly costs, component selection for stable supply chains, footprint standardization, elimination of difficult-to-assemble geometries, full documentation package ready for domestic and overseas contract manufacturers.
Guidance for FCC Part 15 wireless emissions, safety standard preparation for battery-powered electronics, documentation organization, design adjustments to resolve common compliance issues before formal third-party testing.
Firmware bug fixes, hardware revision design, component alternate sourcing during supply shortages, field failure analysis, long-term engineering consultation for OEM customers scaling embedded IoT product lines across New England.
Designed four-layer low-power PCB, developed sleep-optimized embedded firmware, integrated humidity and temperature sensors and long-range LoRa radio. Field testing validated multiple-year battery life, enabling deployment across remote outdoor monitoring locations throughout northern New Hampshire.
Completed schematic, PCB layout and embedded firmware for battery-operated vibration monitoring hardware. Implemented threshold alert logic and smartphone Bluetooth data communication, delivering compact hardware for continuous condition monitoring of rotating factory equipment.
Developed integrated power management circuit, multi-channel analog input hardware and user interface firmware. Performed extensive power profiling to extend runtime on rechargeable lithium batteries, preparing the device platform for customer certification and pilot production runs.