Job
Switch Matrix Board that maps 4 RF ports to 16 bidirectional RF ports, controlled via an I2C interface
topology.
Controlled via I2C with three 16-bit IO expanders (MCP23017), interfacing with an external ESP32 MCU.
Performance
Isolation: ~100 dB between TX and RX, dual ground planes for RF RX.
Insertion/Return
Designer
sheezas
PCB Design Engineer | Embedded Systems | KiCad & Altium Designer
schematic design, PCB layout, circuit analysis, and microcontroller-based systems using platforms such as ESP32, STM32, and Arduino. I am committed to delivering clean, manufacturable PCB designs with attention
Designer
aniqi
arduino ide based programmer
arduino ide based programmer looking to help anyone who needs help with coding arduino avr boards, esp32s,esp8266 and even help setup raspberry pi
3D Model
12 Lead Portable ECG with wireless connectivity
prototyping of a medical-grade, 12-lead Electrocardiogram (ECG) device. Built around the powerful **ESP32-S3-WROOM-1** module, the system is engineered for high-fidelity cardiac monitoring with seamless wireless
Service
I offer expert PCB design & electronics development
manufacturing files. I work with digital, analog, power and microcontroller-based electronics, including ESP32-based systems. I can also review existing designs, troubleshoot hardware, and reverse engineer electronic
Job
Desktop Emotional Hardware — Full Product Design
design, enclosure, electronics integration, working prototype.
Specs: ~9 x 6 x 12 cm, motor lift, ESP32 PCB, mixed materials, home-manufacturing ready.
Deliverables: CAD, PCB files, BOM, prototype.
3D Model
3d-view-IoT Gateway
developed for a cellular-connected embedded system. The board integrates Quectel cellular communication, ESP32/Microcontroller, RS-485, power management, and peripheral interfaces in a compact PCB design. Service:
Designer
nikolajankovicglabs
Embedded Hardware Engineer | Custom PCB Design | Enclosure Design
electrical disturbances and many more. My portfolio includes: -various development boards (with STM32 and ESP32 microcontrollers); -USB 2.0 Hub with 4 outbound USBs, with full enclosure design; -Clock project with
Designer
moem
PCB Design Engineer
Tech Ltd. (Nov 2022 Present), I design and prototype complex PCB solutions centered around STM32 and ESP32 microcontrollers, working closely with cross-functional hardware, firmware, and systems engineering
3D Model
Smart Dispenser
students, university projects, and mechatronics applications. Included Components: Water Tank Cup ESP32 Breadboard Ultrasonic Sensor Water Pump Tube LCD Display Complete Assembly Perfect for SolidWorks