2 layers136.1 × 135.4 mm
Minicopter
darshg321/Minicopter
Compact and precise ESP-32 based drone capable of autonomous pathing, built from scratch
57 parts
2 layers32.1 × 47 mm
Clickfy
Wudker/ClickfyCompact ESP32-C3 based BLE multimedia remote with custom PCB, battery monitoring and low-power operation.
- Size
- 32.1 × 47 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 61
- Pads
- 233
- Tracks, vias
- 704, 56
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 May 2026
- Updated
- 1 Aug 2026
Overview
Clickfy is an open-source printed circuit board by Wudker, from the Wudker/Clickfy repository on GitHub. It is a 2-layer board of 32.1 × 47 mm with 59 parts on 61 nets, routed with 704 tracks and 56 vias.
It is built around the CP2104EK, ESP32-C3-WROOM-02-H4 and DW01A, with the TP4056-42-ESOP8, USBLC6-2P6 and AO3401A among its other parts. Its parts include 22 resistors, 16 capacitors, 6 ICs, 4 diodes and 3 transistors. It belongs with the power and radio and wireless boards and the ESP32 and RISC-V boards of this library.
Main components
8CP2104EK
-- USB Conversion Modules ROHSSilicon LabsUSB Conversion Modules
ESP32-C3-WROOM-02-H4
SMD,20x18mm-105dBm -40℃~+105℃ 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,20x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery Management
TP4056-42-ESOP8
ESOP-8-40℃~+85℃ 1 1A 2uA 4.2V 4V~8V Charging IC Lithium Battery Support ESOP-8 Battery Management ROHSTOPPOWERBattery Management
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
PUMX1
TSSOP-6(SOT-363)-65℃~+150℃ 100MHz 100mA 100nA 120 2 NPN 200mV 300mW 40V 5V NPN TSSOP-6(SOT-363) Bipolar (BJT) ROHSNexperiaBipolar (BJT)
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdClickfy – BLE Multimedia Remote
Clickfy is a compact, keychain-sized multimedia remote based on the ESP32-C3. It communicates through the BLE HID profile and provides dedicated controls for play/pause, next track and previous track. A custom PCB integrates the control buttons, Li-Po battery, status LED and battery-voltage monitoring circuit. The firmware uses sleep modes to reduce power consumption, with development focused on minimizing wake-up and BLE reconnection times.
Technologies
ESP32-C3 C/C++ Bluetooth Low Energy BLE HID Li-Po battery ADC battery monitoring Custom PCB Low-power operation
Usage and development status
After powering on the device, pair Clickfy with a phone, computer or another BLE-compatible media device and use the three buttons to control playback. The current prototype has been built and tested. Planned improvements include further power optimization, shorter reconnection times and support for additional multimedia functions.
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 10k | Resistor_SMD:R_1206_3216Metric | R1, R2, R3, R4, R7, R8, R10, R11, R16, R19, R20 |
| 7 | 100n | Capacitor_SMD:C_1206_3216Metric | C3, C6, C7, C11, C14, C15, C16 |
| 4 | 1k | Resistor_SMD:R_1206_3216Metric | R9, R12, R13, R21 |
| 4 | 22u | Capacitor_SMD:C_1206_3216Metric | C2, C4, C10, C12 |
| 3 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW1, SW2, SW3 |
| 2 | 10u | Capacitor_SMD:C_1206_3216Metric | C9, C13 |
| 2 | 200k | Resistor_SMD:R_1206_3216Metric | R17, R18 |
| 2 | 4.7u | Capacitor_SMD:C_1206_3216Metric | C5, C8 |
| 2 | 5.1K | Resistor_SMD:R_1206_3216Metric | R5, R6 |
| 2 | LED | LED_SMD:LED_1206_3216Metric | D2, D3 |
| 1 | 0.4 | Resistor_SMD:R_1206_3216Metric | R14 |
| 1 | 1u | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 3k | Resistor_SMD:R_1206_3216Metric | R15 |
| 1 | 460 | Resistor_SMD:R_1206_3216Metric | R22 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | Bat+ | Connector_Wire:SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm | J2 |
| 1 | Bat- | Connector_Wire:SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm | J3 |
| 1 | CP2104 | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U3 |
| 1 | DMG6968UDM-7 | DMG6968UDM-7:SOT95P285X140-6N | Q2 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | ESP32-C3-WROOM-02 | RF_Module:ESP32-C3-WROOM-02 | U2 |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | LOGO | Clickfy:icon_8x8 | G*** |
| 1 | LOGO | Clickfy:Logo_10x10 | G*** |
| 1 | MCP1825S | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | PUMX1 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q1 |
| 1 | SS34 | Diode_SMD:D_SMC | D4 |
| 1 | TP4056-42-ESOP8 | Package_SO:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm | U4 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
Questions
How big is the Clickfy PCB?
It measures 32.1 × 47 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clickfy use?
59 parts, built around the CP2104EK, ESP32-C3-WROOM-02-H4, DW01A and TP4056-42-ESOP8. 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 Clickfy KiCad files?
From the Wudker/Clickfy repository on GitHub, at the commit this page was made from: the board is Clickfy_V2/Hardware/PCB/Clickfy.kicad_pcb and its schematic Clickfy_V2/Hardware/PCB/Clickfy.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clickfy design in my own project?
Its repository states no licence, so its author keeps all rights: ask Wudker before reusing the design.
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