Custom Electronics / BLE
ESP32 BLE Custom PCB Badge with RGB LEDs
A custom ESP32 board with BLE connectivity and 40 addressable RGB LEDs, running from either USB-C or an onboard LiPo cell.
- ESP32
- BLE
- RGB LEDs
- USB-C
Portfolio
Selected Engineering Projects
A cross-section of the hardware we develop. Each entry describes the engineering scope and the technologies involved — not commercial outcomes.
Engineering work
Hardware we have designed
Open any project for the engineering scope, the stages covered and the technologies involved.
IoT / Industrial
ESP32 PoE IoT Gateway with Multi-Sensor Integration
An ESP32 gateway powered over Ethernet, combining wired and wireless connectivity with a multi-sensor environmental package.
- ESP32
- PoE
- W5500 Ethernet
- Zigbee
IoT / Energy Monitoring
ESP32 IoT Power Monitoring System
An ESP32-based system for monitoring electrical parameters using voltage and current sensing, with data processing and cloud connectivity.
- ESP32
- Wi-Fi
- Current sensing
- Voltage sensing
Embedded Systems
ESP32-S3 Embedded Vision System
An embedded platform integrating an ESP32-S3 with camera and storage peripherals for custom embedded applications.
- ESP32-S3
- Camera interface
- Storage
- PSRAM
Wearable Electronics
BLE Wearable Electronics
Compact wearable hardware concepts using BLE connectivity and sensor-based interaction.
- Nordic nRF52
- BLE
- MEMS sensors
- Li-Po charging
Power Electronics
Battery-Powered Electronics
Custom low-power electronics incorporating Li-ion batteries, charging, protection and regulated power rails.
- Li-ion
- Charge management
- Protection
- DC/DC
Where it is used
Applications
Domains our hardware work typically serves. The engineering approach stays the same; the constraints change.
- IoT
- Smart Devices
- Wearable Electronics
- Industrial Electronics
- Automation
- Energy Monitoring
- Consumer Electronics
- Embedded Systems
- Sensor Systems
- Battery-Powered Devices
- Research & Development
- Robotics
Technical consultation
Have an Electronics Project in Mind?
Whether you have a complete specification or only an early-stage idea, Quantum Circuit Technologies can help turn the concept into a practical electronics solution.