ESP32 Dimensions Inquiry


what are the dimensions of the ESP32 mcu in this design?
Here are the physical dimensions of the ESP32-WROOM-32E module used in this design:

Table


ModuleLength × Width × Height
U225.5 mm × 18 mm × 3.1 mm
(Values per Espressif “ESP32-WROOM-32E & WROOM-32UE Datasheet v1.8”, Section 10.1)
is this the asme as the freenove FNK0090
Not exactly. The ESP32-WROOM-32E module in this design is 18.0 × 25.5 × 3.1 mm, while the Freenove FNK0090 board appears to be the larger carrier/dev board, about 54 × 25 mm overall.
So: same ESP32 module family, but not the same physical board size.
what board is the same
The closest “same” board is the Freenove ESP32 WROOM Board / FNK0090, which uses an ESP32-WROOM-32E module like this design.
If you mean a common non-Freenove equivalent, look for an ESP32 DevKitC / ESP32-WROOM-32E development board with a similar ~28 mm × 57 mm dev-board footprint and matching header pinout.
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Name
Pin #
Type
Part Type
Terminal Order
+3V3
Unspecified
Terminal
+5V
Unspecified
Terminal
GND
Unspecified
Terminal
GND
Unspecified
Terminal
GND
Unspecified
Terminal
GPIO0
Unspecified
Terminal
GPIO1/TX
Unspecified
Terminal
GPIO12
Unspecified
Terminal
GPIO13
Unspecified
Terminal
GPIO14
Unspecified
Terminal
GPIO15
Unspecified
Terminal
GPIO16
Unspecified
Terminal
GPIO17
Unspecified
Terminal
GPIO18
Unspecified
Terminal
GPIO19
Unspecified
Terminal
GPIO2
Unspecified
Terminal
GPIO21
Unspecified
Terminal
GPIO22
Unspecified
Terminal
GPIO23
Unspecified
Terminal
GPIO25
Unspecified
Terminal
GPIO26
Unspecified
Terminal
GPIO27
Unspecified
Terminal
GPIO3/RX
Unspecified
Terminal

ESP32-WROOM-32E Module