Oledsndio
About the Oledsndio PCB
Oledsndio is an open source ESP32 PCB design by mekatronik-achmadi, published on GitHub. It is a 2-layer board measuring 87.7 × 49.2 mm, with 33 components from 17 distinct parts.
Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the SSD1306, AMS1117-3.3, CH340G, USBLC6-2SC6 and INMP441_MODULE. By type, the board carries 12 capacitors, 8 resistors, 6 ICs, 2 connectors, 2 switches and 1 crystal.
From the project
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Main components on the Oledsndio
Oledsndio bill of materials (BOM)
33 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32 | ESP32-WROOM-32 | U1 |
| 1 | SSD1306 | Display_128x64_096_I2C | U2 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U3 |
| 1 | CH340G | SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U5 |
| 1 | INMP441_MODULE | INMP441 | U6 |
| 1 | 12MHz | Crystal_SMD_HC49-SD_HandSoldering | Y1 |
| 1 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | USB_B_Micro | USB_Micro-B_Wuerth_629105150521 | J2 |
| 1 | ST-TF-003A MICRO-SD-CARD-SOCKET-9P_ST-TF-003A_ | MICRO-SD9+4P-SMD-16.1X14.5X1.85MM | SD1 |
| 2 | SW_Push | SW_PUSH_6mm | SW1, SW2 |
| 1 | LED_BLUE | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 4 | 22p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C4, C6, C7 |
| 3 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C9, C10 |
| 5 | 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C5, C8, C11, C12 |
| 1 | 330 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 7 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R5, R6, R7, R8 |
Oledsndio design files
The KiCad project lives in the mekatronik-achmadi/example_collection repository on GitHub; these links point at the commit this page was built from.
Oledsndio: common questions
What microcontroller does the Oledsndio use?
The Oledsndio is built around the ESP32-WROOM-32, from the ESP32 family.
How big is the Oledsndio PCB?
The Oledsndio measures 87.7 × 49.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Oledsndio?
33 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Oledsndio design files?
From the mekatronik-achmadi/example_collection repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Oledsndio design in my own project?
The repository has no license, so all rights stay with mekatronik-achmadi. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Oledsndio 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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