2 layers90 × 70 mm
BRD3
mFulmini/engineer
Tutaj znajduje się część pracy inżynierskiej w postaci oprogramowań jednostek brzegowych, rysunków, schematów elektrycznych oraz poglądowych zrzutów ekranu.
22 parts
2 layers81 × 95.7 mm
Tutaj znajduje się część pracy inżynierskiej w postaci oprogramowań jednostek brzegowych, rysunków, schematów elektrycznych oraz poglądowych zrzutów ekranu. This section presents a part of the engineering thesis, comprising edge unit software, technical drawings, electrical schematics, and illustrative screenshots.
- Size
- 81 × 95.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 39
- Pads
- 88
- Tracks, vias
- 120, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Jan 2026
- Updated
- 28 Jan 2026
Overview
BRD2 is an open-source printed circuit board by mFulmini, from the mFulmini/engineer repository on GitHub. It is a 2-layer board of 81 × 95.7 mm with 25 parts on 39 nets, routed with 120 tracks and 0 vias.
It is built around the HLK-5M05, DHT22 and BC547. Its parts include 7 connectors, 3 resistors, 2 capacitors, 2 diodes and 1 IC. It belongs with the ESP32 and RISC-V boards of this library.
Main components
3
HLK-5M05
DIP,38x23mm0.1W 18mm 1A 23mm 38mm 3kV 50mVp-p 5V 5W 70% 70V~350V 85VAC~264VAC AC/DC-DC Short Circuit Protection、Over Current Protection ±0.2% DIP,38x23mm AC-DC Power Modules ROHSHI-LINKAC-DC Power Modules
DHT22
插件-40℃~+80℃ 3.3V 5%RH~99%RH 500uA ±3%RH 插件 Temperature and Humidity Sensor ROHSHAIGUTemperature And Humidity Sensor
BC547
TO-92Bipolar (BJT)Jiangsu Changjing Electronics Technology (CJ)
README
README.mdengineer
Tutaj znajduje się część pracy inżynierskiej w postaci oprogramowań jednostek brzegowych, rysunków, schematów elektrycznych oraz poglądowych zrzutów ekranu. This section presents a part of the engineering thesis, comprising edge unit software, technical drawings, electrical schematics, and illustrative screenshots.
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 1 | 1000 uF | Capacitor_THT:CP_Radial_D7.5mm_P2.50mm | C2 |
| 1 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C3 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 4,7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 47uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C_Polarised1 |
| 1 | ARK-500 | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J10 |
| 1 | BC547 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x18_MountingPin | Connector_PinSocket_2.54mm:PinSocket_1x18_P2.54mm_Vertical | J2 |
| 1 | DHT22 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | U1 |
| 1 | FireBeetle_2_Board_ESP32_C6 | Connector_PinSocket_2.54mm:PinSocket_1x14_P2.54mm_Vertical | J3 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Schurter_FAB_0031-355x_Horizontal_Closed | F1 |
| 1 | HLK-5M05 | Converter_ACDC:Converter_ACDC_Hi-Link_HLK-PMxx | PS1 |
| 1 | JST-XH_SERVO | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J1 |
| 1 | LED | LED_THT:LED_D5.0mm | D2 |
| 1 | MF RC522 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J6 |
| 1 | SH1106 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J4 |
| 1 | Varistor | Varistor:RV_Disc_D12mm_W3.9mm_P7.5mm | RV1 |
Questions
How big is the BRD2 PCB?
It measures 81 × 95.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BRD2 use?
25 parts, built around the HLK-5M05, DHT22 and BC547. 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 BRD2 KiCad files?
From the mFulmini/engineer repository on GitHub, at the commit this page was made from: the board is Modul2/BRD2.kicad_pcb and its schematic Modul1/SCH1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BRD2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask mFulmini before reusing the design.
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