Ring Controller with Smart Charging Case for Augmented Reality Applications
A compact, wearable controller designed for intuitive interaction in AR environments.
Built around the nRF52840 BLE SoC, it integrates multiple input and feedback features:
6-axis IMU for motion and gesture detection
Custom capacitive touchpad for swipe and tap input
Force sensor for detecting press gestures
Piezo haptic driver for tactile feedback
Battery management system with protection circuitry and magnetic charging pads
The charging case includes embedded electronics for device detection and communication, as well as a hall sensor for lid position sensing.
Early Prototype Ring PCBs
A collection of early hardware prototypes, including rigid-flex PCBs, custom touchpad FPCs, and a 12×10 mm universal module used for rapid development and testing.
Handheld Controller and Upper Arm Module for VR Applications
Powered by the nRF52832 BLE SoC, the controller integrates multiple sensing and feedback features:
6-axis IMU and a magnetometer
Custom touchpad with integrated button
LRA haptic driver for tactile feedback
Capacitive sensors for grip and chirality (left/right hand) detection
Hall-effect trigger sensor for analog input
LEDs for optical tracking support
QA Test Jig for Production Line
IMU Gyroscope calibration jig prototype
Test Board for Flipper Zero power system validation
A dedicated test board developed for EVT (Engineering Validation Test) of the power management system in the Flipper Zero device.
Key components include:
Charger PMIC
Fuel Gauge IC
Three buck converters
USB Type-C interface
This test board was featured in the Flipper Zero project diary, which also details the development of the RFID/NFC PCB: https://habr.com/ru/companies/flipperdevices/articles/528808/
Flipper Zero DVT PCBs,
featuring BLE and HF/LF RFID antennas, designed and finely tuned by me for optimal performance.
Handheld 3DoF Controller for VR Applications
A compact 3DoF handheld controller built around the nRF52832 BLE SoC, designed for low-power, wireless VR interaction.
The device operates on two AAA batteries and integrates the following components:
6-axis IMU for motion tracking
Custom touchpad with integrated button for intuitive input
NFC interface for quick pairing and device identification
Power-efficient architecture optimized for extended battery life
An earlier version of this controller
was mass-produced in tens of thousands of units and bundled with the HTC Vive Focus headset as part of the Vive Wave ecosystem for the Chinese VR market.
Ring controller DK PCBs for validation, tuning and debugging
Orber Selfie Drone
A compact selfie drone capable of carrying a smartphone, featuring a unique tracking system and an intuitive point-and-drag control interface. Takeoff and following a beacon in the controller is achieved with a single button press.
I was responsible for electronics design, PCB development, and mechanical construction, as well as contributing significantly to firmware development and debugging on the nRF52840 SoCs.
Orber Controller
Custom CNC Machine for Rapid Prototyping
A self-built CNC milling machine designed for rapid prototyping of PCBs and sheet material parts.
Equipped with optical limit switches and a touch probe for mapping the surface of metal objects, enabling precise milling and repeatable operations.