HardLabs

Underwater drone

lets-make-something·underwater-drone·kicad/underwater.kicad_pcb

Underwater drone PCB layout, top view — open source ESP32 board by lets-make-something

About the Underwater drone PCB

Underwater drone is an open source ESP32 PCB design by lets-make-something, published on GitHub. It is a 2-layer board measuring 56.5 × 64.8 mm, with 71 components from 41 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the TPS62133, FT230XS-U, LM1117-1.8, LM1117-3.3 and ICM-20948. By type, the board carries 23 capacitors, 20 connectors, 12 resistors, 7 ICs, 3 inductors and 2 diodes.

It belongs with the robotics & motion designs in this gallery.

Main components on the Underwater drone

TPS62133FT230XS-ULM1117-1.8ESP32-WROOM-32LM1117-3.3ICM-20948

Underwater drone bill of materials (BOM)

71 components, 41 distinct parts.

QtyPartRefs
2
TPS62133
U1, U7
1
FT230XS-U
U2
1
LM1117-1.8
U3
1
ESP32-WROOM-32
U4
1
LM1117-3.3
U5
1
ICM-20948
U6
2
Batt_out
J1, J17
2
Screw_Terminal_01x02
J2, J18
1
Power5v
J3
1
uart
J4
3
Conn_01x05_Female
J5, J6, J9
1
USB_B_Micro
J7
1
Raspberry_Pi_2_3
J8
1
Conn_01x05_Male
J10
1
usb_out
J11
1
esp_power5v_in
J12
1
esp_power5v_out
J13
1
Conn_01x02_Female
J14
1
usb_in
J15
1
Batt_in
J19
Show 21 more
QtyPartRefs
2
Conn_01x04_Female
J20, J21
2
SPH0645LM4H-B
MIC1, MIC2
2
TB6612FNG
UX1, UY1
2
LED_Small
D1, D2
1
Ferrite_Bead_Small
FB1
2
2.2μH
L1, L2
2
3.3nF
C1, C16
7
0.1μF
C2, C13, C14, C15, C17, C20, C22
4
10μF
C3, C18, C21, C23
2
22μF
C4, C19
1
10nF
C5
2
47pF
C6, C7
2
100nF
C8, C9
1
4.7μF
C10
2
0.1μF
C11, C12
2
100k
R1, R10
2
100
R2, R3
2
270
R4, R7
2
27
R5, R6
2
R
R8, R9
2
1k
R11, R12

Underwater drone design files

The KiCad project lives in the lets-make-something/underwater-drone repository on GitHub; these links point at the commit this page was built from.

Underwater drone: common questions

What microcontroller does the Underwater drone use?

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

How big is the Underwater drone PCB?

The Underwater drone measures 56.5 × 64.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Underwater drone?

71 components, from 41 distinct parts. The full bill of materials is listed on this page.

Where can I download the Underwater drone design files?

From the lets-make-something/underwater-drone repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Underwater drone design in my own project?

The repository has no license, so all rights stay with lets-make-something. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Underwater drone 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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