PCB Design Services
Professional schematic design, PCB layout, BOM, Gerber files, manufacturing support and electronics product development.
Electronics • Firmware • Product Development
From circuit concept to connected product
PAK-EL LAB takes hardware projects from schematic to shipped product — PCB design, embedded firmware, mobile apps and connected devices for industrial, marine, automotive, wireless and research applications.
230+PCB Designs
IoTESP32 • LoRa • UWB
GlobalRemote Clients
PCB Layout
Firmware
IoT Apps
Marine
Why Work With Us
Hardware and firmware, under one team
8+ Years of Engineering
Hands-on circuit, firmware and product development experience.
Full-Stack Hardware Capability
PCB, firmware, IoT and mobile apps under one team.
International Client Experience
Remote collaboration across countries and time zones.
Confidential Handling
NDA-friendly, with project files kept confidential.
A practical path to production
Engineering support at every stage
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01
DefineRequirements, constraints and project scope
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02
DesignHardware, firmware and connected software
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03
PrototypeBring-up, integration and validation
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04
DeliverProduction files and manufacturing support
Services
Engineering services across every hardware domain
Each service has a dedicated page covering scope, deliverables and the technologies involved — from PCB design and ESP32 firmware to marine electronics and 4–20 mA industrial interfaces.
Embedded Firmware Development
C/C++ firmware for ESP32, ESP32-S3, STM32 and Arduino-compatible hardware — drivers, protocols and application logic.
ESP32 & UWB Development
ESP32-S3 firmware, UWB ranging, indoor positioning, BLE, WiFi, LoRa, IoT nodes and real-time tracking systems.
IoT Product Development
Complete IoT products with hardware, firmware, cloud database, mobile app dashboard and remote monitoring.
Industrial Automation Systems
Sensor monitoring, data logging, smart controllers, motor control, relay systems and industrial embedded automation.
Marine & Ship Electronics
Ship power monitoring, bearing monitoring, weight monitoring, wave height nodes and rugged marine electronics systems.
Automotive & Motorbike Electronics
Custom PCBs and apps for cars, motorbikes, speedometer/tuner systems, dashboards and automotive electronics.
RF, LoRa & Satellite Communication
Wireless telemetry, LoRa communication, satellite communication support, remote sensor nodes and embedded RF systems.
Addressable LED Systems
WS2812, NeoPixel, RGB LED effects, sound-reactive LEDs, event lighting and ESP32 LED controllers.
Android & iOS App Development
Flutter Android/iOS apps for IoT devices, BLE, Firebase, dashboards, authentication and hardware control.
Website Development
SEO-ready business websites, portfolio websites, landing pages, service pages and technical company websites.
4-20mA Signal Systems
Industrial 4–20 mA signal generator and reader designs, sensor interfaces, calibration and monitoring systems.
Ex-Rated Laser Distance Systems
Laser distance measurement systems for oil and gas environments requiring hazardous-area design awareness.
Sound Apps & Smart Watch Systems
WiFi/BLE sound control apps, smart watch electronics, wearable prototypes and connected device development.
Industries
Industries We Serve
Engineering support for marine, automotive, oil & gas, industrial automation, consumer electronics, wireless communication and research prototypes.
- Marine & Offshore Electronics
- Automotive and Motorbike Electronics
- Oil & Gas Distance Measurement Systems
- Industrial 4–20 mA Monitoring
- Wireless LoRa / Satellite Telemetry
- IoT Smart Devices and Wearables
Portfolio
Featured project: CoachLink ESP32 LoRa system
A mobile app, ESP32 gateway and remote LoRa node communicating in real time with no internet or SIM card — including custom PCB design, OLED display support and battery-powered operation.
Custom PCB Design
Production-ready circuit boards for embedded systems and product prototypes.
Wireless Embedded Nodes
LoRa, ESP32, UWB and sensor nodes for remote monitoring.
Automation Hardware
Sensor monitoring, control boards and firmware-driven automation.
FAQ
Common questions
Which microcontrollers do you support?
ESP32, ESP32-S3, STM32 and Arduino-compatible microcontrollers, with other MCU families evaluated per project.
Do you sign NDAs?
Yes, we can sign a mutual NDA before reviewing sensitive project details.
Do you work with international clients?
Yes, we work remotely across different countries and time zones by email and WhatsApp.
Need custom electronics, PCB or app development?
Send your requirements and get professional guidance for your project.