120V or gate
About the 120V or gate PCB
120V or gate is an open source ESP32 PCB design by flaviut, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 37 components from 15 distinct parts.
Its main chip is the XIAO-ESP32-C3-SMD, from the ESP32 family. Other key parts include the HW-613 and PC817. By type, the board carries 15 resistors, 7 capacitors, 4 ICs, 4 transistors, 3 connectors and 3 diodes.
From the project
Run ./scripts/jlcpcbfab.py to generate a JLCPCB-ready gerber + drill zip at /fab/`.
Main components on the 120V or gate
120V or gate bill of materials (BOM)
37 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XIAO-ESP32-C3-SMD | XIAO-ESP32-C3-DIP-SMD | U1 |
| 1 | HW-613 | Converter_DCDC_RECOM_R-78S-0.1_THT | U2 |
| 2 | PC817 | DIP-4_W7.62mm | U3, U4 |
| 3 | BSS84 | SOT-23 | Q1, Q2, Q7 |
| 1 | SS8050 | SOT-23 | Q8 |
| 2 | Conn_01x04 | PhoenixContact_GMSTBVA_2,5_4-G-7,62_1x04_P7.62mm_Vertical | J1, J2 |
| 1 | Conn_01x02 | SolderWire-1.5sqmm_1x02_P7.8mm_D1.7mm_OD3.9mm | J4 |
| 1 | Relay_SPDT | Relay_SPDT_SANYOU_SRD_Series_Form_C | K1 |
| 3 | 1N4007 | D_SMA_Handsoldering | D2, D3, D4 |
| 2 | 100u | CP_Elec_6.3x5.3 | C1, C7 |
| 5 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3, C4, C5, C6 |
| 5 | 180k | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | R1, R3, R5, R11, R12 |
| 2 | 68k | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | R2, R4 |
| 4 | 15k | R_MELF_MMB-0207 | R6, R14, R16, R17 |
| 4 | 1k | R_MELF_MMB-0207 | R7, R8, R9, R10 |
120V or gate design files
The KiCad project lives in the flaviut/hardware repository on GitHub; these links point at the commit this page was built from.
120V or gate: common questions
What microcontroller does the 120V or gate use?
The 120V or gate is built around the XIAO-ESP32-C3-SMD, from the ESP32 family.
How big is the 120V or gate PCB?
The 120V or gate measures 100 × 100 mm, has 2 copper layers and is 1.600198 mm thick.
How many components are on the 120V or gate?
37 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the 120V or gate design files?
From the flaviut/hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 120V or gate design in my own project?
The repository has no license, so all rights stay with flaviut. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the 120V or gate 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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