FujiApple DevKit IDC-20
FujiNetWIFI·fujinet-hardware·AppleII/FujiApple-DevKit-IDC-20-Rev1/FujiApple-DevKit-IDC-20.kicad_pcb
About the FujiApple DevKit IDC-20 PCB
FujiApple DevKit IDC-20 is an open source ESP32 PCB design by FujiNetWIFI, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 41 × 56.9 mm, with 30 components from 24 distinct parts.
Its main chip is the C529589, from the ESP32 family. Other key parts include the C969151, C371970 and C3040644. By type, the board carries 16 resistors, 5 ICs, 3 diodes, 2 connectors, 2 switches and 2 capacitors.
It belongs with the iot & wireless designs in this gallery.
From the project
Schematics and design files for FujiNet hardware
This is the easiest to build of the Devkit series. It is built with 8.5mm high female headers allowing for easy removal of the ESP32 board to troubleshoot soldering issues with components placed under it.
There's an interactive BOM here, and CSV version with footprint info here. The interactive one is super useful when placing the SMD components.
You will also need two 19p 2.54mm female header strips. I buy the the 40p versions and cut them down to size.

Main components on the FujiApple DevKit IDC-20
FujiApple DevKit IDC-20 bill of materials (BOM)
30 components, 24 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C529589 LSF0204PWR Espressif | TSSOP-14_4.4x5mm_P0.65mm | U1 |
| 1 | C969151 LSF0204PWR Silicon Labs | TSSOP-14_4.4x5mm_P0.65mm | U2 |
| 1 | C371970 LSF0204PWR Texas Instruments | TSSOP-14_4.4x5mm_P0.65mm | U3 |
| 1 | C371970 ESP32-DevKitC-VE Texas Instruments | MODULE_ESP32-DEVKITC-32U | U4 |
| 1 | C3040644 SFH690AT Torex | SO-4_4.4x3.9mm_P2.54mm | U5 |
| 1 | 7-745288-2 Conn_02x10_Odd_Even | IDC-Header_2x10_P2.54mm_Horizontal | J1 |
| 1 | ST-TF-003A | SUNTECH_ST-TF-003A | P1 |
| 1 | ButtonA | SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | Reset | SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | C157742 WIFI SunLED | LED_D3.0mm | D1 |
| 1 | C364550 BUS OSRAM | LED_D3.0mm | D2 |
| 1 | C364554 B140-E3 Rohm | D_SMA | D3 |
| 1 | C23733 47uF 10v | CP_EIA-3528-15_AVX-H_Pad1.50x2.35mm_HandSolder | C1 |
| 1 | C23733 220uF 10v | CP_EIA-7343-30_AVX-N_Pad2.25x2.55mm_HandSolder | C2 |
| 2 | C25744 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 5 | C25744 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R5, R6, R8, R12 |
| 1 | C25862 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | C413086 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | C25896 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 1 | C11702 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C163478 270R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11 |
| 2 | C11702 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13, R14 |
| 1 | C25862 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | C413001 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16 |
FujiApple DevKit IDC-20 design files
The KiCad project lives in the FujiNetWIFI/fujinet-hardware repository on GitHub; these links point at the commit this page was built from.
FujiApple DevKit IDC-20: common questions
What microcontroller does the FujiApple DevKit IDC-20 use?
The FujiApple DevKit IDC-20 is built around the C529589, from the ESP32 family.
How big is the FujiApple DevKit IDC-20 PCB?
The FujiApple DevKit IDC-20 measures 41 × 56.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the FujiApple DevKit IDC-20?
30 components, from 24 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 FujiApple DevKit IDC-20 design files?
From the FujiNetWIFI/fujinet-hardware repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the FujiApple DevKit IDC-20 design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which FujiNetWIFI chose for the repository.
Can I test firmware for the FujiApple DevKit IDC-20 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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