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2 layers65 × 26.5 mmEmb2, the printed circuit board in 3D
Size
65 × 26.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
12
Nets
28
Pads
82
Tracks, vias
86, 0
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
9 Apr 2025
Updated
9 Apr 2025

Overview

Emb2 is an open-source printed circuit board by NEHASHRIV26, from the NEHASHRIV26/IOT_PCB repository on GitHub. It is a 2-layer board of 65 × 26.5 mm with 12 parts on 28 nets, routed with 86 tracks and 0 vias.

It is built around the ESP32-C3-WROOM-02-H4, HLK-PM03 and BC547. Its parts include 3 resistors, 2 capacitors, 2 ICs, 2 switches and 1 diode. It belongs with the ESP32 and RISC-V boards of this library.

Main components

3

Parts

12
QtyValueFootprintReferences
3RResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_HorizontalR1, R2, R3
11N4007Diode_THT:D_DO-41_SOD81_P10.16mm_HorizontalD1
1BC547Button_Switch_THT:SW_E-Switch_EG1224_SPDT_AngledQ1
1CCapacitor_SMD:C_0603_1608MetricC2
1CCapacitor_SMD:C_0805_2012MetricC1
1ESP32-C3-WROOM-02RF_Module:ESP32-C3-WROOM-02U2
1Fujitsu_FTR-LYCA005xRelay_THT:Relay_SPDT_Fujitsu_FTR-LYCA005x_FormC_VerticalK2
1HLK-PM03Converter_ACDC:Converter_ACDC_Hi-Link_HLK-PMxxPS2
1PC817Package_DIP:DIP-8-16_W7.62mmU1
1SW_PushButton_Switch_THT:SW_SPST_Omron_B3F-40xxSW1

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Questions

How big is the Emb2 PCB?

It measures 65 × 26.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Emb2 use?

12 parts, built around the ESP32-C3-WROOM-02-H4, HLK-PM03 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 Emb2 KiCad files?

From the NEHASHRIV26/IOT_PCB repository on GitHub, at the commit this page was made from: the board is emb2.kicad_pcb and its schematic emb2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Emb2 design in my own project?

Its repository states no licence, so its author keeps all rights: ask NEHASHRIV26 before reusing the design.