4 layers40 × 40 mm
Auv sensor hub
ginomcfino/auv-sensor-hub
STM32-based sensor hub for autonomous underwater vehicles, integrating CAN bus communication, inertial and pressure sensing, and multi-rail power regulation.
59 parts
2 layers60 × 40 mm
PACC
AwesomeSno/PACCPalma Advanced Cursor Control (PACC)
- Size
- 60 × 40 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 53
- Pads
- 149
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260306)
- Created
- 8 Oct 2026
- Updated
- 12 Oct 2026
Overview
PACC is an open-source printed circuit board by AwesomeSno, from the AwesomeSno/PACC repository on GitHub. It is a 2-layer board of 60 × 40 mm with 34 parts on 53 nets.
It is built around the ESP32-S3-WROOM-1-N8, BNO085 and MCP73831, with the TLV75533PDBV among its other parts. Its parts include 13 resistors, 8 capacitors, 4 ICs, 2 diodes and 2 connectors. It belongs with the ESP32 boards of this library.
Main components
4
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
BNO085
LGA-28(3.8x5.2)1.65V~3.6V 12bit、16bit IMU (accelerometer + gyroscope) SPI、I2C、UART X,Y,Z X,Y,Z ±2000dps ±8g LGA-28(3.8x5.2) Accelerometers ROHSCEVAAccelerometers
MCP73831
UncategorisedMicrochip Technology
TLV75533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 238mV@(500mA) 25uA 3.3V 46dB@(100kHz) 5.5V 500mA 71.5uVrms Fixed Over Current Protection、Thermal Shutdown、Input undervoltage protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdPalma Advanced Cursor Control (PACC)
PACC is a glove based controller inspired by sci-fi movies that lets you control any device using your palm without ever touching a mouse. The idea is to have something similar to how you control things on an Apple Vision Pro, but for any regular computer or device.
How it works
The glove uses an onboard IMU and flex sensors to track your hand orientation and finger movements, which an ESP32 translates into standard HID mouse commands sent over Bluetooth or USB-C.
Hardware layout
- IMU on the back of the hand / palm: Tracks hand tilt and orientation in real time.
- Flex sensors on fingers: Detects bends, pinches, and finger taps.
- ESP32 microcontroller: Handles sensor data processing and sends mouse commands over Bluetooth HID or USB.
- LiPo battery: Powers the wearable from the wrist.
Planned gestures
The goal is to keep interactions natural and simple:
- Tilt = Move: Tilt your hand to move the cursor across the screen.
- Pinch = Click: Pinch your fingers together for a standard left click.
- Tap = Right click: Quick finger tap triggers a secondary right click.
- Swipe = Scroll: Swipe your hand to scroll through pages and documents.
Multi-device control
One glove can stay paired with multiple devices at once (laptop, phone, tablet) so you can switch between screens seamlessly without having to disconnect and reconnect every time.
Engineering challenges
Key things to solve during the build:
- Battery life: Keeping power consumption low while reading sensors and running Bluetooth.
- Bluetooth delay: Minimizing input latency so cursor movement feels snappy.
- Sensor calibration: Filtering noise and drift from the IMU.
- Comfort: Making the glove lightweight and easy to wear for long sessions.
Future roadmap
This first prototype is built as a glove to test the sensors and tracking algorithms. Once everything works reliably, the long-term goal is to shrink the entire system down into a compact ring.
Author
Designed and built by Harinandan J V for Hack Club's Half Life.
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6, R7, R8 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C1, C7, C8 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C3, C4 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R10, R13 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 1N4148 | Diode_SMD:D_SOD-123 | D1 |
| 1 | 2N2222 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | 3.7V 500mAh | BatteryHolder | BT1 |
| 1 | 3.9k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | BNO085 | Palma:BNO085_LGA28 | U2 |
| 1 | BOOT | SW_Tactile | SW1 |
| 1 | COIN | Motor_Coin | M1 |
| 1 | DEBUG | Connector_PinHeader_1x04 | J2 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | MCP73831 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | RESET | SW_Tactile | SW2 |
| 1 | TLV75533P | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | USB-C | Connector_USB:USB_C_Receptacle | J1 |
Questions
How big is the PACC PCB?
It measures 60 × 40 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PACC use?
34 parts, built around the ESP32-S3-WROOM-1-N8, BNO085, MCP73831 and TLV75533PDBV. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the PACC KiCad files?
From the AwesomeSno/PACC repository on GitHub, at the commit this page was made from: the board is hardware/pacc.kicad_pcb and its schematic hardware/pacc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PACC design in my own project?
Its repository states no licence, so its author keeps all rights: ask AwesomeSno before reusing the design.
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