2 layers75 × 34 mm
4 layers60 × 101 mm
Wifi nh tools
NottingHack/nh-tool-wifiA WiFi version of our induction tool card reader
- Size
- 60 × 101 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 47
- Pads
- 171
- Tracks, vias
- 261, 34
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Mar 2026
- Updated
- 26 May 2026
Overview
Wifi nh tools is an open-source printed circuit board by NottingHack, from the NottingHack/nh-tool-wifi repository on GitHub. It is a 4-layer board of 60 × 101 mm with 26 parts on 47 nets, routed with 261 tracks and 34 vias.
It is built around the IRM-03-3.3, BAV21WS-AQ and BSS138, with the DMG2305UX-13 and 0443002.DR among its other parts. Its parts include 8 resistors, 5 connectors, 3 diodes, 2 transistors and 1 switch. It belongs with the radio and wireless boards and the RP2040 boards of this library.
Main components
5
IRM-03-3.3
DIP-5DIP-5 Power Module/Power Supply ROHSMWAC-DC Power Modules
BAV21WS-AQ
SOD-3231.25V@200mA 100nA@200V 200V 200mA 50ns Independent SOD-323 Switching Diodes ROHSDIOTECSwitching Diode
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsDMG2305UX-13
SOT-23-55℃~+150℃ 1 P-Channel 1.4W 10.2nC@4.5V 20V 40mΩ@4.5V、52mΩ@2.5V 5A 77pF 808pF 85pF 900mV P-Channel SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
0443002.DR
SMD,10.1x3.1mm-55℃~+125℃ 10.08mm 18.06 250V 250V 2A 3.05mm 3.05mm 50A Surface Mount Fuse SMD,10.1x3.1mm Disposable fuses ROHSLittelfuseDisposable Fuses
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R2, R6, R7, R8 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 100 | Resistor_SMD:R_0603_1608Metric | R3, R4, R5 |
| 2 | BAV21 | Diode_SMD:Nexperia_CFP3_SOD-123W | D2, D3 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | Screw_Terminal_01x03 | TerminalBlock_WAGO:TerminalBlock_WAGO_2601-1103_1x03_P3.50mm_Horizontal | J1, J4 |
| 1 | 8-1393239-4 | lib:TE_8-1393239-4 | K1 |
| 1 | Conn_02x03_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J5 |
| 1 | DMG2305UX-13 | DIODES_DMG2305UX-13:SOT96P240X120-3N | D1 |
| 1 | Fuse | Fuse:Fuse_Littelfuse-NANO2-462 | F1 |
| 1 | IRM-03-3.3 | IRM-03-3.3:IRM035 | PS1 |
| 1 | RFID | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J2 |
| 1 | RaspberryPi_Pico_W | Module:RaspberryPi_Pico_W_SMD_HandSolder | A1 |
| 1 | User | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J3 |
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Questions
How big is the Wifi nh tools PCB?
It measures 60 × 101 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Wifi nh tools use?
26 parts, built around the IRM-03-3.3, BAV21WS-AQ, BSS138 and DMG2305UX-13. 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 Wifi nh tools KiCad files?
From the NottingHack/nh-tool-wifi repository on GitHub, at the commit this page was made from: the board is wifi-nh-tools/wifi-nh-tools.kicad_pcb and its schematic front/front.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wifi nh tools design in my own project?
Its repository states no licence, so its author keeps all rights: ask NottingHack before reusing the design.