2 layers38.1 × 43.2 mm
NightLight ESP32
jeremypoulter/SmartishNight
Electronics for a ESP32/NeoPixel based nightlight
27 partsBSD-3-Clause
2 layers30 × 60 mm
SmartishMiniLED
jeremypoulter/SmartishMiniLED2USB C powered mini WLED controller
- Size
- 30 × 60 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 63
- Pads
- 191
- Tracks, vias
- 256, 23
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Jun 2022
- Updated
- 3 Oct 2026
Overview
SmartishMiniLED is an open-source printed circuit board by jeremypoulter, from the jeremypoulter/SmartishMiniLED repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 30 × 60 mm with 41 parts on 63 nets, routed with 256 tracks and 23 vias.
It is built around the 74LVC1G125, CH340C and ESP32-WROOM-32D, with the AP2112K-3.3, MMBT2222 and IRLML6344 among its other parts. Its parts include 11 resistors, 6 capacitors, 6 connectors, 5 ICs and 4 transistors. It belongs with the ESP32 boards of this library.
Main components
6
74LVC1G125
SOT-353SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, Transceivers
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
MMBT2222
SOT-231 NPN 1uA 300mV 300mW 400 40V 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSYONGYUTAIBipolar (BJT)IRLML6344
SOT-23-55℃~+150℃ 1 N-channel 1.1V 1.3W 29mΩ@4.5V 30V 46pF 5A 6.8nC@4.5V 650pF SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
README
README.mdSmartishNight
Electronics for a ESP32/NeoPixel based nightlight
| pin | output |
|---|---|
| 4 | Button |
| 15 | IR |
| 25 | Data out |
| 32 | LED power |
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10K | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R8, R9 |
| 4 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C5 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 5K1 | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D2, D3 |
| 2 | MMBT2222 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | NeopixelStripPads | SmartishMiniLED:LedStripPads | P1, P2 |
| 2 | R | Resistor_SMD:R_0805_2012Metric | R10, R11 |
| 1 | 1000u | Capacitor_SMD:CP_Elec_10x10 | C6 |
| 1 | 100K | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 300R | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 74LVC1G125 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | BUTTON | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | Conn_01x02 | SmartishMiniLED:Main_Power | J4 |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32D | U1 |
| 1 | Flyback diode | Diode_SMD:D_SMA_Handsoldering | D1 |
| 1 | IRF7410 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Q4 |
| 1 | IRLML6344 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | Polyfuse | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-3_1x03_P2.54mm_Horizontal | J3 |
| 1 | TL3342 | Button_Switch_SMD:SW_SPST_TL3342 | SW2 |
| 1 | TSOP382xx | OptoDevice:Vishay_MINICAST-3Pin | U5 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
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Questions
How big is the SmartishMiniLED PCB?
It measures 30 × 60 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SmartishMiniLED use?
41 parts, built around the 74LVC1G125, CH340C, ESP32-WROOM-32D and AP2112K-3.3. 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 SmartishMiniLED KiCad files?
From the jeremypoulter/SmartishMiniLED repository on GitHub, at the commit this page was made from: the board is SmartishMiniLED.kicad_pcb and its schematic SmartishMiniLED.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SmartishMiniLED design in my own project?
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).