Embedded Systems

Bluetooth Speakers for Motor Cycle Helmets

Description: A Bluetooth speaker system designed for motorcycle helmets, allowing riders to control music/audio. It integrates a built-in microphone for seamless communication, enabling hands-free phone calls and intercom functionality while riding.

Process: Desk research, circuit design, PCB layout, firmware development & prototyping.

ATV Control PCB

Description: A robust control PCB for an electric all-terrain vehicle (ATV). This unit manages a 24V battery system with charging capabilities for two 12V batteries. It includes two motor drivers, an audio amplifier with speaker output for alerts and user notifications, a TFT display for user settings, and an encoder for accurate motor position and speed control.

Process: Desk research, circuit design, PCB layout, firmware development, prototyping, and testing.

Ultra-Low Power PCB for Solar-Powered Garden Light

Description: A PCB for a solar-powered garden light, controlling a mini DC motor to adjust the light’s position. It operates with a 3.7V LiPo battery and integrates latching switches to trigger movement, with a sleep mode to conserve energy.

Process: Desk research, circuit design, PCB layout,firmware development, prototyping, and testing.

USB 2.0 PC Switch

Description: A PCB designed as a PC switch with a USB 2.0 header for connection to the motherboard. It features an ESP32 for controlling power (ON/OFF), resetting the PC, and monitoring its status through ESPHome integration.

Process: Circuit design, PCB layout, ESP32 integration, firmware development, prototyping, and testing.

Industrial Automation Controller

Description: A robust industrial automation controller board featuring an STM32F407 microcontroller. It includes a DAC for audio output, microphone input for sound detection, dual motor drivers for controlling actuators, 1 Mbps Ethernet for network communication, ADC for sensor data acquisition, CAN interface for industrial network integration, and a serial debugger for development and troubleshooting.

Process: Desk research, circuit design, PCB layout,firmware development, prototyping, and testing.

Wireless Mechanical Keyboard with OLED Display

Description: A wireless mechanical keyboard featuring hot-swappable MX key switches, an OLED display for on-the-go typing, and cloud data synchronization. It supports Bluetooth and wired connections for versatile use with PCs, allowing seamless transition between standard and wireless modes.

Process: Desk research, circuit design, PCB layout,firmware development, prototyping, and testing.

Placebo Based Electronic Cigeratte

Description: An electronic cigarette designed as a placebo to help users reduce smoking habits. It mimics the feel and experience of a real e-cigarette without nicotine. The device is equipped with LED indicators and a rechargeable battery, offering a realistic but safe alternative.

Process: Behavioral research on smoking cessation, circuit design, firmware development, prototyping & testing. 

Breath-Pacing Wearable Device

Description: A wearable breath-pacing device designed for athletes, featuring haptic feedback to guide breathing intervals. The device connects to a mobile app, allowing users to set and customize breath-pacing intervals to optimize their training and performance.

Process: Circuit design, PCB layout, app development, firmware programming, prototyping, and user testing.