Ozinverter
About the Ozinverter PCB
Ozinverter is an open source ESP32 PCB design by PawelSroczynski, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 99.8 × 99.8 mm, with 83 components from 57 distinct parts.
Its main chip is the ESP32-C3-MINI-1, from the ESP32 family. Other key parts include the SN65HVD230, SN65HVD75, LMR38010 and BQ76952. By type, the board carries 25 capacitors, 20 diodes, 17 resistors, 9 connectors, 5 ICs and 1 transistor.
It belongs with the power & battery designs in this gallery.
From the project
The Toloka application revives the traditional Central European concept of communal work parties ("toloka"), creating a digital platform that connects DIY project owners with skilled volunteers, learners, and mentors. It fosters mutual aid and skill-sharing within communities, ensuring that knowledge and resources circulate efficiently.
Main components on the Ozinverter
Ozinverter bill of materials (BOM)
83 components, 57 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN65HVD230 ir2110 Texas Instruments | DIP-14_W7.62mm | U1 |
| 1 | SN65HVD75 ir2110 Texas Instruments | DIP-14_W7.62mm | U2 |
| 1 | LMR38010 8010 Texas Instruments | DIP-32_W15.24mm | U3 |
| 1 | BQ76952 VOLTAGEMODULE Texas Instruments | lm2596hvsmodule | U4 |
| 1 | ESP32-C3-MINI-1 mcr100 Espressif Systems | TO-92_Molded_Narrow | U5 |
| 1 | IPT012N08N5 tip35c Infineon | TO-247_Vertical_Neutral123 | Q2 |
| 1 | 12MHZ Crystal | Crystal_HC49-U_Vertical | Y1 |
| 1 | CONN_01X01 CONN_02X05 Erni | IDC_Header_Straight_10pins | P1 |
| 1 | CONN_01X01 status Erni | Molex_KK-6410-02_02x2.54mm_Straight | P2 |
| 1 | CONN_01X01 on/off Erni | Molex_KK-6410-02_02x2.54mm_Straight | P3 |
| 1 | CONN_01X01 temp Erni | Molex_KK-6410-02_02x2.54mm_Straight | P4 |
| 1 | CONN_01X01 ct sense | Molex_KK-6410-02_02x2.54mm_Straight | P5 |
| 1 | Active mains | 1pin | P6 |
| 1 | neutral mains | 1pin | P7 |
| 1 | systemled | Molex_KK-6410-02_02x2.54mm_Straight | P8 |
| 1 | ct sense | Molex_KK-6410-02_02x2.54mm_Straight | p1 |
| 1 | reset | Molex_KK-6410-02_02x2.54mm_Straight | JP1 |
| 2 | 2k | Potentiometer_Trimmer_ACP_CA9v_Horizontal_Px10.0mm_Py5.0mm | RV1, RV2 |
| 1 | 12vac transforme | 3wtransformer | T1 |
| 1 | 500r | RV2X4 | voltageout1 |
Show 37 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PMEG10010ELRX D Nexperia | Diode_DO-41_SOD81_Vertical_AnodeUp | D1 |
| 1 | BAT46W FR107 Diodes Incorporated | Diode_DO-41_SOD81_Vertical_AnodeUp | D2 |
| 1 | ESD5B5.0ST1G FR107 onsemi | Diode_DO-41_SOD81_Vertical_AnodeUp | D3 |
| 1 | ESD5B5.0ST1G 5.6v onsemi | Diode_DO-41_SOD81_Vertical_AnodeUp | D4 |
| 2 | BAT46W LED Diodes Incorporated | LED-5MM | D5, D16 |
| 3 | D | Diode_DO-41_SOD81_Vertical_AnodeUp | D6, D7, D18 |
| 1 | PESD2CANFD D Nexperia | Diode_DO-41_SOD81_Vertical_AnodeUp | D8 |
| 1 | VSS8D3M10-M3/I D Vishay | Diode_DO-41_SOD81_Vertical_AnodeUp | D9 |
| 1 | BAT46W 1n4007 Diodes Incorporated | Diode_DO-41_SOD81_Vertical_AnodeUp | D10 |
| 1 | 3.6V 1n45007 onsemi | Diode_DO-41_SOD81_Vertical_AnodeUp | D11 |
| 1 | SMCJ70A 1n4007 Bourns | Diode_DO-41_SOD81_Vertical_AnodeUp | D12 |
| 1 | PMEG10010ELRX 1n4007 Nexperia | Diode_DO-41_SOD81_Vertical_AnodeUp | D13 |
| 1 | 16V LED Diodes Incorporated | LED-5MM | D14 |
| 1 | BAT46W 6v0 Diodes Incorporated | Diode_DO-41_SOD81_Vertical_AnodeUp | D15 |
| 1 | 16V D Diodes Incorporated | Diode_DO-41_SOD81_Vertical_AnodeUp | D17 |
| 1 | 5.1V D Diodes Incorporated | Diode_DO-41_SOD81_Vertical_AnodeUp | D19 |
| 1 | BAT46W D Diodes Incorporated | Diode_DO-41_SOD81_Vertical_AnodeUp | D20 |
| 4 | 220NF 10uf Samsung Electro-Mechanics | C_Radial_D5_L6_P2.5 | C1, C2, C6, C7 |
| 5 | 220NF 100n Samsung Electro-Mechanics | C_Rect_L7_W2.5_P5 | C3, C5, C12, C13, C16 |
| 2 | 220NF 4.7uf Samsung Electro-Mechanics | C_Radial_D5_L6_P2.5 | C4, C14 |
| 2 | 220NF 100nf Samsung Electro-Mechanics | C_Rect_L7_W2.5_P5 | C8, C15 |
| 1 | 220NF 100uf Samsung Electro-Mechanics | C_Radial_D6.3_L11.2_P2.5 | C9 |
| 2 | 220NF 10uf Samsung Electro-Mechanics | C_Radial_D5_L11_P2.5 | C10, C11 |
| 1 | C525654 1nF Samsung Electro-Mechanics | C_Rect_L7_W2.5_P5 | C17 |
| 1 | C525654 22pF Samsung Electro-Mechanics | C_Disc_D3_P2.5 | C18 |
| 1 | 100NF 22pF Samsung Electro-Mechanics | C_Disc_D3_P2.5 | C19 |
| 1 | C1607 100n Samsung Electro-Mechanics | C_Rect_L7_W2.5_P5 | C20 |
| 1 | 100NF 4.7uF Samsung Electro-Mechanics | C_Radial_D5_L6_P2.5 | C21 |
| 1 | C55151 4.7uF Samsung Electro-Mechanics | C_Radial_D5_L6_P2.5 | C22 |
| 1 | C55151 2uf Samsung Electro-Mechanics | C_Rect_L27_W11_P22 | C23 |
| 1 | 100NF 1n Samsung Electro-Mechanics | C_Disc_D3_P2.5 | C24 |
| 1 | C13832 0.1uf Samsung Electro-Mechanics | C_Radial_D5_L6_P2.5 | C25 |
| 3 | 10k Yageo | Resistor_Horizontal_RM7mm | R1, R3, R6 |
| 2 | 1k8 Yageo | Resistor_Horizontal_RM7mm | R2, R9 |
| 9 | 1K Yageo | Resistor_Horizontal_RM7mm | R4, R5, R8, R10, R13, R14, R15, R16 +1 |
| 2 | 100R Yageo | Resistor_Horizontal_RM7mm | R7, R11 |
| 1 | 7k6 Yageo | Resistor_Horizontal_RM7mm | R12 |
Ozinverter design files
The KiCad project lives in the PawelSroczynski/enklava repository on GitHub; these links point at the commit this page was built from.
Ozinverter: common questions
What microcontroller does the Ozinverter use?
The Ozinverter is built around the ESP32-C3-MINI-1, from the ESP32 family.
How big is the Ozinverter PCB?
The Ozinverter measures 99.8 × 99.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ozinverter?
83 components, from 57 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Ozinverter design files?
From the PawelSroczynski/enklava repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Ozinverter design in my own project?
Yes, under the terms of its GPL-3.0 license, which PawelSroczynski chose for the repository.
Can I test firmware for the Ozinverter 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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