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Hello! I'm Patrick Cohen, a driven individual with years of hands-on hardware and software experience gained by working on embedded systems, IoT, and data analytics projects. I have worked with different microcontrollers, circuitry, and various modules. I have worked on projects that have included parts such as: Microcontrollers: - Esp32 (WiFi, BLE, IoT Cloud Services Integration) - NRF Nordic Semiconductor - Esp8266 (WiFi, IoT) - Arduino (Uno, Mega, Nano, Micro, Nano 33 BLE) Microcomputers: -Raspberry Pi -Jetson Nano -Jetson Xavier NX Additional Modules: -Adafruit RFM95W LoRa Radio Transceiver Breakout -HC-05 Bluetooth module -SH-HC-08 Bluetooth Low Energy module -GSM Cellular Module -NRF24L01 Wireless Transceiver -Ultrasonic sensor (Detect distance) -LM35 Temperature Sensor -RFID Wireless Card -Relay modules -Servos -DC Motors I have also worked on projects that contain the following functionalities: -Android application development to control Arduino circuit via Bluetooth and WiFi. -Analog circuits to control the level of power through the motor. -HBridge motor driver for opposite motor polarity (clockwise and counterclockwise rotation). -Solar-powered microcontroller projects that have implemented deep sleep code for prolonged operation.

Thank you for taking the time to view my profile! I am an electrical engineer with experience in PCB hardware design, embedded systems programming, and software application development. I specialize in full-stack electronics design for IoT systems, covering cloud integration, BLE, and RF wireless communication. My background includes digital signal processing (DSP), electromagnetic simulation, and machine learning for data classification, image recognition, and audio processing. I’ve also built strong skills in application development, database integration, and 3D modeling for enclosure design. I founded Future Technologies Laboratory LLC in 2015 with the goal of providing complete electronics and software engineering solutions. Today, I lead a talented team of engineers to fulfill the requirements of complex projects and ensure they move efficiently from concept to production. Services: •Circuit Design & PCB Layout – KiCad, EasyEDA, DipTrace, Altium Designer (limited license) •Embedded Systems Programming – ESP32, STM32, Microchip, nRF52, Arduino, Xilinx, SHARC •AWS Cloud Services – S3, IoT Core, IAM, Amplify, DynamoDB, etc. •Simulation, DSP & Machine Learning – Python, MATLAB, LabVIEW •Application & Web Development – React Native, React, Flutter, .NET •3D Modeling & Enclosure Design – Autodesk Fusion 360, including IP-rated housings •Project Management & Technical Documentation – concept development, planning, and technical writing

Hello! My name is Mark Ingle. I enjoy helping entrepreneurs get their idea off the ground by providing a cost effective method of prototyping. With a unique set of technical skills I am able to develop a workbench prototype to confirm requirements and provide guidance on PCB development. Check out the video in my profile to see an example of a project where I used several of my technical skills. Feel free to ask me for references. My rates are very reasonable and a good fit for someone with a limited budget. Below is a list of my skills to support your prototyping projects: - Advanced firmware experience with the STM32, Arduino, Photon Particle, ESP8266, and ESP32 micro controllers. - Development languages include C++, JavaScript, and C#. - Communication protocols include Wifi, Serial, Classic Bluetooth and BLE, SPI, I2C, MQTT - Mobile development on Anroid and iOS - 3D printing capabilities - Advanced design skills in Fusion 360 - Drone repair, configuration and setup - PCB design using DipTrace or Eagle I am a great communicator and always put customers first when planning technical projects. Send me a message if you have any questions about my work and experience. I have plenty of YouTube and blog examples of my work.

I’m a senior engineer with 12 years of professional software development experience, focused on embedded firmware, device integration, and the desktop tools that support real hardware in the field. I help clients build, stabilize, and extend products based on ESP32, STM32, nRF52, and Arduino-class platforms. That includes new firmware features, bring-up work, sensor and peripheral integration, BLE or Wi-Fi connectivity, protocol handling, and the kind of hard debugging that shows up only on live hardware. I also build supporting HMI and engineering tools when the device needs a reliable desktop interface for setup, monitoring, control, or diagnostics. My work is a strong fit for projects where reliability matters. If the device is freezing, resetting, dropping communication, behaving inconsistently, or simply not ready for production, I can help turn that into a practical path forward. I treat timing, memory limits, power constraints, and real-world failure cases as core engineering concerns, not afterthoughts. I work in common embedded environments including ESP-IDF, PlatformIO, Arduino, STM32Cube, and FreeRTOS-based projects. I’m comfortable with UART, SPI, I2C, BLE, Wi-Fi, and device-side protocol work, as well as the logging, diagnostics, and test hooks needed to make firmware maintainable over time. I prefer to start with a consultation. You will not get vague advice. You will get a written summary of what I found, a recommended next-step plan, and a rough scope so you can decide whether to move forward with implementation. My process is straightforward. First I confirm the hardware, toolchain, constraints, and expected behavior. Then I reproduce the issue or define the feature clearly, add practical diagnostics, and implement changes with maintainability and recovery in mind. You get clean build steps, clear handoff notes, and deliverables another engineer can pick up without guesswork. If you have a board or MCU, a short project goal, and any logs, repo links, or notes on expected versus actual behavior, send them over. I’ll reply with the fastest practical path to getting it working.

Independent mobile app developer specialising in maintenance, stabilisation, and long-term support of mobile applications using Bluetooth Low Energy (BLE) and NFC. I work across iOS, Android, and React Native codebases, helping teams improve connection reliability, performance, and release confidence in production environments. My work frequently involves diagnosing and resolving intermittent BLE issues such as disconnects, slow discovery, and lifecycle edge cases, as well as supporting apps in payments-enabled and operationally sensitive domains. Key Responsibilities: - Maintenance and stabilisation of BLE- and NFC-enabled mobile apps - Cross-platform development and support: - iOS (Swift, CoreBluetooth, Core NFC) - Android (Kotlin/Java, Bluetooth GATT APIs) - React Native (native module integration) - Performance tuning related to connection stability, discovery time, and battery usage - App Store and Play Store release management, including coordinated re-submissions - Payments integration and maintenance (e.g. Stripe, Worldpay, EBT SNAP) Highlights: - Reduced erroneous BLE disconnect rates by ~15% in a production app - Improved BLE device discovery time by ~5 seconds - Designed and managed a quarterly release process for 200+ mobile apps, including occasional repushes - Provided long-term consulting support to a client over ~3 years, focused on stability and operational continuity Specialties: BLE · NFC · Mobile App Maintenance · iOS · Android · React Native · CoreBluetooth · Bluetooth GATT · Payments Integration · Production Support

I am a Senior Electrical Engineer with a Master’s degree and 16 years of experience designing embedded electronic systems from concept through production. My work includes electronics architecture, schematic design, PCB layout, firmware development, server-side system integration, and prototype bring-up for low-volume and production hardware. I have extensive experience with PCB design and manufacturing, including over 10 years using Altium Designer, along with Eagle, KiCad, and other professional tools. My designs account for signal integrity, power integrity, EMC considerations, and manufacturability. I regularly support projects through prototype builds, validation, and transition to contract manufacturing. My technical background includes a wide range of sensors and subsystems such as temperature, humidity, time-of-flight, reflective sensors, load cells, RTDs, pressure sensors, light sensors, smoke detection, IMUs, magnetic sensors, mmWave radar, GPS, and image sensors. I design complete systems that integrate sensing, processing, power management, communications, and backend connectivity. I have developed designs involving bidirectional motor control, piezo mist drivers, servos, heaters, LED drivers, PMICs, battery charging and protection, audio systems with mixing and noise cancellation, RFID and NFC, AC-powered systems, switch-mode power supplies, vision systems, and closed-loop temperature control using PID. My embedded software experience includes bare-metal and RTOS-based development across a wide range of platforms, including PIC, AVR, SAMD and SAMG, STM32, nRF52, EFM32, MSP430, PSoC, LPC, Kinetis, i.MX, Jetson, and Raspberry Pi. I work with Microchip, Atmel, Nordic, ST, Silicon Labs, and Espressif toolchains, as well as FreeRTOS, uC/OS-III, Zephyr, and FPGA-based systems. I have significant experience with IoT system integration beyond the device level. This includes server-side communication protocols for connected products, backend services, databases, and client-facing applications. I have worked with REST APIs, MQTT, WebSockets, TCP/UDP, and custom protocols, using Python and Node.js on the server side, along with SQL and PostgreSQL databases. I have also developed web-based client portals using React and Bootstrap to support device management, data visualization, and system administration. Separately, I use Python extensively as a development and engineering tool. This includes writing scripts and utilities for automation, testing, debugging, manufacturing support, data analysis, and workflow integration during hardware and firmware development. I have designed wireless and connected products using ESP32 and ESP8266, nRF52, u-blox cellular modules, LoRa, Zigbee, and Z-Wave. These systems have been deployed across consumer, industrial, automotive, marine, aviation, and agricultural applications. Industry experience includes RV systems, drones, consumer electronics, industrial equipment, automotive lighting and heating, marine wireless sensor networks, aviation seat and heater controls, and agricultural equipment. I am comfortable working with both startups and established manufacturers and understand the tradeoffs required to move a design from prototype to production. I focus on building reliable, manufacturable systems and communicating clearly throughout the project. If you need an engineer who can own the hardware, firmware, and system integration end to end, I am ready to help.