Praise Henitan

Embedded Hardware & PCB Design Engineer

Apple • Freelance

Aug 2018 - Present • 8 yrs 2 mos

I design embedded hardware and PCBs for products that need to work reliably in the real world. With 20+ years in electronics, I take projects from first idea to production-ready design files, covering schematic design, component selection, PCB layout, Gerber files, BOM and prototype support. AREAS OF EXPERTISE GNSS/GPS tracking and telemetry boards built around STM32 microcontrollers 4G LTE/GSM cellular modules with GPS, SIM and antenna design Lithium battery charger circuits with USB-C input, protection and power management Power supply design: buck, boost and DC-DC converter stages ESP32, RP2040 and STM32 boards for IoT products and prototypes RF PCB design for antenna and module integration Interfaces including UART, SPI, I2C, USB, RS485 and CAN TYPICAL PROJECTS Vehicle and fleet GPS trackers Asset and pet trackers Industrial monitoring boards with RS485 and sensors LoRa IoT sensor nodes with low power design Lithium battery charger and USB-C power boards Custom ESP32 and RP2040 development boards WHAT I DELIVER Schematic and PCB layout with ERC and DRC checks Gerber and drill files ready for fabrication Bill of materials (BOM) Clear design notes and documentation Revisions and support during prototyping TOOLS KiCad, Altium, EasyEDA, Proteus, MATLAB and Simulink. HOW I WORK I start with your requirements, such as battery type, power budget, interfaces and size. Then I choose components, draw and check the schematic, and lay out the board with clean power routing and manufacturing rules in mind. You get clear updates, honest advice on trade-offs and on-time delivery. WHO I HELP Startups, engineers, makers and companies building trackers, IoT devices, battery-powered products and custom electronics. WHY CLIENTS CHOOSE ME Boards designed to work the first time Clear communication and fast replies Production-ready files for fabrication Message me before ordering and let’s talk about your project!