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Mesh hand

sneakylizard123-4·mesh_hand·kicad/mesh_hand.kicad_pcb

Mesh hand PCB layout, top view — open source ESP32 board by sneakylizard123-4
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About the Mesh hand PCB

Mesh hand is an open source ESP32 PCB design by sneakylizard123-4, published on GitHub. It is a 4-layer board measuring 50 × 75 mm, with 67 components from 28 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the IP5306, TLV75733PDBV, NEO-M9N, E22-900M30S and USBLC6-2SC6. By type, the board carries 25 capacitors, 16 resistors, 8 ICs, 6 diodes, 5 connectors and 3 switches.

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

From the project

I wanted to make a second revision of my previous handheld meshtastic board. I also thought it would be a great project to have on my portfolio.

Mesh hand, from the project README
From the project README

Main components on the Mesh hand

IP5306TLV75733PDBVNEO-M9NE22-900M30SESP32-S3-WROOM-1USBLC6-2SC6DS3231M

Mesh hand bill of materials (BOM)

67 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
IP5306
U1
2
TLV75733PDBV
U2, U3
1
NEO-M9N
U4
1
E22-900M30S
U5
1
ESP32-S3-WROOM-1
U6
1
USBLC6-2SC6
U7
1
DS3231M
U8
2
AO3400A
Q1, Q2
1
CONN_01X02
Conn_01x02
J1
1
SMA
J2
1
Conn_Coaxial
J3
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J4
1
CONN_01X04
Conn_01x04
J5
3
SW_Push
SW1, SW2, SW3
6
LED
D1, D2, D3, D4, D5, D6
1
30R/1.8A
FB1
1
1uH XFL4020-102MEC
L1
11
10UF
10uF
C1, C2, C5, C6, C7, C8, C12, C14 +3
9
0.1UF
0.1uF
C3, C4, C9, C10, C17, C20, C22, C24 +1
4
22UF
22uF
C11, C13, C15, C19
Show 8 more
QtyPartRefs
1
47PF
47pF
C16
7
10K
10k
R1, R2, R3, R5, R6, R10, R16
2
2
R4, R7
1
390K
390k
R8
1
100K
100k
R9
1
10
R11
2
5.1K
5.1k
R12, R13
2
22
R14, R15

Mesh hand design files

The KiCad project lives in the sneakylizard123-4/mesh_hand repository on GitHub; these links point at the commit this page was built from.

Mesh hand: common questions

What microcontroller does the Mesh hand use?

The Mesh hand is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Mesh hand PCB?

The Mesh hand measures 50 × 75 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Mesh hand?

67 components, from 28 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 Mesh hand design files?

From the sneakylizard123-4/mesh_hand 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 Mesh hand design in my own project?

The repository has no license, so all rights stay with sneakylizard123-4. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Mesh hand 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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