Job
ESP32-S3 Mic Carrier Board
# PCB Design Brief — ESP32-S3 Mic Carrier Board
## Overview
Carrier PCB for a distributed microphone array project.
The board accepts two plug-in modules:
1. **YD-ESP32-S3 44P dev kit (https://www
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IoT Environmental Sensor PCB Review – ESP32-S3 + Sequans GM02S 4G/LTE-M/NB-IoT + WiFi/BT
prototyping.
Key components
MCU: Espressif ESP32-S3
Cellular module: Sequans GM02S (LTE-M / NB-IoT) + PCB antenna / U.FL
Wireless: Wi-Fi + Bluetooth from ESP32-S3
Main sensor: SPEC Sensors Ethylene (C2H4)
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
Job
PCB Layout
We require expert PCB layout design in KiCAD for adjustment system's main board that is based on ESP32-S3-WROOM-1U, focusing on optimizing power management and precise analog/digital signal integrity including
Designer
youssifh
Hardware Enginner
(hardware + firmware) - Custom Development Boards (ESP32-S3, TM4C123GXL, RP2040) My services cover PCB Design, Embedded Systems Programming (AVR, ARM Cortex-M, ESP32) I’m passionate about creating innovative and
Designer
johnny49r
Embedded Hardware / Firmware Designer | PCB Layout & Prototyping | Test & Manufacturing
mainly with ESP32-family devices, Arduino/PlatformIO firmware, EasyEDA / KiCad, JLCPCB-ready manufacturing files, and mixed hardware/firmware bring-up. I have designed and developed ESP32-S3 audio and speech-processing
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PCB Designer Needed — Automotive GPS/LTE Tracker (ESP32-S3, A7670E, Dual CAN Bus)
deliver fully production-ready files suitable for JLCPCB turnkey assembly.
The device includes:
ESP32-S3-WROOM-1 (N8R8) as the main MCU
A7670E LTE Cat-1 modem
u-blox NEO-M8N GPS module
Dual MCP2515
Designer
muhammadfaizank
Senior PCB Design Engineer | Circuit Designer | Embedded | Power | Analog | RF | Digital
controller from microchip, microcontrollers from Silabs, PIC, ATMEL C8051, ATMEGA, TMS320F28335, ESP32-C5, ESP32-S3, STM32, RPI, ARDUINO ⭐ Why Clients Choose Me ⭐ ✅ End-to-End Capability — from concept → schematic