HardLabs

SSDCard

box1o·SSDCard

SSDCard PCB layout, top view — open source ESP32 board by box1o

About the SSDCard PCB

SSDCard is an open source ESP32 PCB design by box1o, published on GitHub under the MIT license. It is a 2-layer board measuring 135.6 × 54 mm, with 66 components from 31 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the STM32F405RGTx, SN74LVC2T45DCUR, CH340C and AP63203WU. By type, the board carries 21 capacitors, 21 resistors, 6 ICs, 5 switches, 4 inductors and 3 transistors.

It belongs with the iot & wireless designs in this gallery.

From the project

SmartCard Emulator using stm32 and esp32 for wifi

SSDCard, from the project README
From the project README

Main components on the SSDCard

STM32F405RGTxSN74LVC2T45DCURESP32-WROOM-32CH340CAP63203WU

SSDCard bill of materials (BOM)

66 components, 31 distinct parts.

QtyPartRefs
1
STM32F405RGTx
U1
2
SN74LVC2T45DCUR
U2, U3
1
ESP32-WROOM-32
U5
1
CH340C
U6
1
AP63203WU
U7
1
2N7002
Q1
2
BSS138
Q2, Q3
1
SmartCard_ISO7816
J1
2
USB_C_Plug_USB2.0
P2, P3
1
STM_NRST
SW2
1
STM_BOOT0_SW
SW3
1
ESP32_BOOT_SW
SW4
1
STM_SB1
SW7
1
STM_SB2
SW8
1
DS
D1
1
DE
D2
1
B
D7
3
FB
FB1, FB3, FB4
1
4.7uH
L1
10
100n
C1, C2, C3, C4, C5, C16, C17, C18 +2
Show 11 more
QtyPartRefs
1
0.1u
C6
2
20pF
C7, C8
2
2.2uF
C9, C10
6
10uF
C11, C14, C15, C19, C22, C23
5
100k
R1, R2, R7, R22, R23
3
220
R3, R4, R6
1
100R
R5
6
10K
R8, R10, R11, R14, R18, R19
2
300R
R9, R13
2
5.1k
R12, R15
2
1k
R20, R21

SSDCard design files

The KiCad project lives in the box1o/SSDCard repository on GitHub; these links point at the commit this page was built from.

SSDCard: common questions

What microcontroller does the SSDCard use?

The SSDCard is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the SSDCard PCB?

The SSDCard measures 135.6 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the SSDCard?

66 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the SSDCard design files?

From the box1o/SSDCard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the SSDCard design in my own project?

Yes, under the terms of its MIT license, which box1o chose for the repository.

Can I test firmware for the SSDCard 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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