Toyyib A.

I help hardware startups, IoT companies, and engineering teams turn product ideas into reliable, manufacturable PCBs, ready for production the first time. With 8+ years in electronics engineering and 100+ projects delivered, I cover schematic design, multi-layer high-density PCB layout (Altium, KiCad), component selection, EMC-aware design, and embedded firmware bring-up (STM32, ESP32, nRF and other MCUs). Core Technical Capabilities: ❇️Hardware Architecture & PCB Design ✔️ Schematic Capture & PCB Layout: Altium Designer, KiCad, EasyEDA, Cadence OrCAD ✔️ High-Density & High-Speed Layout: Multi-layer boards (2 to 10+ layers), impedance control, signal & power integrity ✔️ Analog, Digital & Mixed-Signal: LTspice, TINA simulation & circuit optimization ✔️ Power & Battery Management: Buck/Boost Converters, AC/DC Power Supplies, LiPo/Li-Ion BMS, USB-C PD ✔️ Production Handoff (DFM/DFA): Gerber X2, ODB++, Bill of Materials (BOM optimization), Pick & Place, CPL files, and Fab drawings ❇️Microcontrollers & Hardware Platforms 🔹 ARM Cortex-M & MCUs: STM32 (F0–F7, H7, L4), Microchip/Atmel (PIC/AVR), Texas Instruments (MSP430/C2000), NXP 🔹 Wireless & IoT SoCs: ESP32 / ESP8266 (Wi-Fi + BLE), Nordic Semiconductor (nRF52 / nRF53 BLE & Thread), Raspberry Pi RP2040, Silicon Labs 🔹 SoM & Single-Board Integration: Raspberry Pi Compute Module (CM4), NVIDIA Jetson, NXP i.MX 🔹 FPGA & CPLD: Xilinx, Lattice, ModelSim verification & Verilog/VHDL Firmware & Bus Protocols 🔹 Embedded Toolchains: STM32CubeIDE, ESP-IDF, Keil MDK, nRF Connect SDK, Zephyr RTOS, Arduino IDE 🔹 Interfaces & Protocols: CAN bus, RS485/Modbus, SPI, I2C, UART, USB 2.0/3.0, Ethernet, LoRa, BLE 🔹 Hardware Bring-Up: Oscilloscope / Logic Analyzer debugging, board validation, and signal measurements ❇️CAD & Engineering Software: Altium Designer | KiCad | LTspice | STM32CubeIDE | ModelSim | AutoCAD | MATLAB | Fusion 360 (3D Enclosure clearance verification) Whether you need a complete schematic-to-board layout, a design review for DFM/EMC compliance before fabrication, or custom firmware bring-up, let’s connect to turn your hardware vision into reality! Best regards, Toyyib