SMHome UniversalRound ESP32 C3 Mini
About the SMHome UniversalRound ESP32 C3 Mini PCB
SMHome UniversalRound ESP32 C3 Mini is an open source ESP32 PCB design by abel-msk, published on GitHub. It is a 2-layer board measuring 48 × 45.6 mm, with 58 components from 37 distinct parts.
Its main chip is the ESP32 C3 Pro Mini, from the ESP32 family. Other key parts include the BP2525F, LP5907MFX-3.3 and MCP73831/2. By type, the board carries 13 resistors, 11 diodes, 10 capacitors, 8 connectors, 4 ICs and 4 test points.
From the project
Kikad small PCB board with ESP32c3 220v power and various connectors
This is small pcb board was designed to place under wall mounted electric components in socket box, it steel can bee plcad in its own box znd powered by usb.
Next step is to open project file SMHomeUniversalRoundESP32C3Miniv3.kicadpro in KiKad.
Main components on the SMHome UniversalRound ESP32 C3 Mini
SMHome UniversalRound ESP32 C3 Mini bill of materials (BOM)
58 components, 37 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32 C3 Pro Mini | ESP32-C3_Pro_mini_no_keepout | U1 |
| 1 | BP2525F | SOT33-5 | U2 |
| 1 | LP5907MFX-3.3 | SOT-23-5 | U3 |
| 1 | MCP73831/2 | SOT-23-5 | U4 |
| 1 | IRLML6402 | SOT-23 | Q1 |
| 2 | K128_P3 | PinHeader_1x03_P2.54mm_Vertical | J1, J5 |
| 1 | K128_P4 | Phoenix Contact_MPT-0,5_4_2,54_P4 | J2 |
| 1 | S8B-PH-SM4-TB | JST_PH_S9B-PH-SM4-TB_1x09-1MP_P2.00mm_Horizontal | J3 |
| 1 | 220V input Screw connector pitch 5мм | DG301-5.0-03P | J4 |
| 1 | JST SH | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J6 |
| 1 | USB_C_Receptacle_PowerOnly_6P | USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal | J7 |
| 1 | Bat | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J8 |
| 1 | MB8S | MBS | DB1 |
| 1 | 250v/0.12A | RF145_D6.5mm_W4mm | F1 |
| 3 | to ADC | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2, JP3 |
| 4 | TestPoint | TestPoint_THTPad_D2.0mm_Drill1.0mm | TP2, TP3, TP4, TP5 |
| 1 | 07D471K | RV_Disc_D9mm_W3.3mm_P5mm | VR1 |
| 5 | PESD3V3L1BA | D_SOD-323_HandSoldering | D1, D5, D9, D11, D12 |
| 2 | 1N5817WS | D_SOD-123 | D2, D4 |
| 1 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1N4007W (A7) | D_SOD-123F | D6 |
| 1 | ES1J | D_SMA | D7 |
| 1 | E1J/FR107 | D_SOD-123F | D8 |
| 1 | 320uH | L_Radial_D10.0mm_P5.00mm_Fastron_07P | L1 |
| 3 | 100nF | C_0805_2012Metric | C1, C11, C12 |
| 1 | 4,7uF | CP_Radial_D8.0mm_P3.80mm | C2 |
| 3 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4, C6 |
| 1 | 680uF | CP_Radial_D6.3mm_P2.50mm | C5 |
| 2 | 4.7uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8, C9 |
| 3 | 1K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R20, R21 |
| 3 | 600R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R11, R12 |
| 1 | 2K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 470R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 10R | R_Axial_DIN0414_L11.9mm_D4.5mm_P5.08mm_Vertical | R5 |
| 2 | 4.7K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7 |
| 1 | 0,3 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R14 |
| 1 | 100R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19 |
SMHome UniversalRound ESP32 C3 Mini design files
The KiCad project lives in the abel-msk/SMHome_UniversalRound_ESP32_C3_Mini repository on GitHub; these links point at the commit this page was built from.
SMHome UniversalRound ESP32 C3 Mini: common questions
What microcontroller does the SMHome UniversalRound ESP32 C3 Mini use?
The SMHome UniversalRound ESP32 C3 Mini is built around the ESP32 C3 Pro Mini, from the ESP32 family.
How big is the SMHome UniversalRound ESP32 C3 Mini PCB?
The SMHome UniversalRound ESP32 C3 Mini measures 48 × 45.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SMHome UniversalRound ESP32 C3 Mini?
58 components, from 37 distinct parts. The full bill of materials is listed on this page.
Where can I download the SMHome UniversalRound ESP32 C3 Mini design files?
From the abel-msk/SMHome_UniversalRound_ESP32_C3_Mini repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SMHome UniversalRound ESP32 C3 Mini design in my own project?
The repository has no license, so all rights stay with abel-msk. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the SMHome UniversalRound ESP32 C3 Mini without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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