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2 layers98.5 × 72 mmP2PNode THT, the printed circuit board in 3D

For this project, our main targeted users were particularly the high school students who are able to comprehend most basic peer-to-peer mesh communication knowledge which often included in STEM subject syllabus such as…

Size
98.5 × 72 mm
Copper layers
2
Thickness
1.6 mm
Parts
19
Nets
54
Pads
103
Tracks, vias
130, 0
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
18 Jun 2025
Updated
24 Jun 2025

Overview

P2PNode THT is an open-source printed circuit board by gr1d-init, from the gr1d-init/p2pMeshCommLearningKit repository on GitHub, published under the MIT licence. It is a 2-layer board of 98.5 × 72 mm with 19 parts on 54 nets, routed with 130 tracks and 0 vias.

It is built around the NRF24L01. Its parts include 4 switches, 3 resistors, 3 diodes, 2 ICs and 1 capacitor. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

README.md

P2P_Mesh_Communication_Learning_Kit_SKEE1103_C_Programming_for_Engineers

For this project, our main targeted users were particularly the high school students who are able to comprehend most basic peer-to-peer mesh communication knowledge which often included in STEM subject syllabus such as Computer Science and Physics subject.

Other than that, students are also exposed to an exciting involvement in Arduino kit development, lies under the usage of microcontrollers, which is a foundational skillset for their Reka Bentuk Teknologi subject that includes hardware and software implementations.

In short, we want student to head the ground up, build up a Peer-to-Peer Mesh Communication Device on their own with given instructions manual, enhance their practical skills on utilise a microcontroller and strengthen their understanding towards wireless communication protocols.

Parts

19
QtyValueFootprintReferences
4MountingHoleMountingHole:MountingHole_2.1mmH1, H2, H3, H4
3330RResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_HorizontalR1, R2, R3
3LEDLED_THT:LED_D3.0mmD1, D2, D3
3SW_PushButton_Switch_THT:SW_PUSH_6mm_H5mmSW1, SW2, SW3
110ufCapacitor_THT:CP_Axial_L10.0mm_D4.5mm_P15.00mm_HorizontalC1
124652465:MODULE_2465U2
13.7VBattery:BatteryHolder_Keystone_1042_1x18650BT1
1Arduino_Nano_v3.xModule:Arduino_NanoA1
1NRF24L01Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mmU1
1SW_Nidec_CAS-120A1Button_Switch_SMD:Nidec_Copal_CAS-120ASW4

Questions

How big is the P2PNode THT PCB?

It measures 98.5 × 72 mm and has 2 copper layers, 1.6 mm thick.

What parts does the P2PNode THT use?

19 parts, built around the NRF24L01. 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 P2PNode THT KiCad files?

From the gr1d-init/p2pMeshCommLearningKit repository on GitHub, at the commit this page was made from: the board is kicadModels/P2PNode_THT/P2PNode_THT.kicad_pcb and its schematic kicadModels/P2PNode_SMD/P2PNode_SMD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the P2PNode THT design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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