HardLabs

Kv4p HT

ceilingduster·kv4p-ht-dmr·pcb/KiCAD/kv4p-ht-PANEL/kv4p-ht-PANEL.kicad_pcb

Kv4p HT PCB layout, top view — open source ESP32 board by ceilingduster
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About the Kv4p HT PCB

Kv4p HT is an open source ESP32 PCB design by ceilingduster, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 81.2 × 96.6 mm, with 70 components from 36 distinct parts.

Its main chip is the ESP32-WROOM-32E-N4, from the ESP32 family. Other key parts include the AZ1117H-3.3TRG1 and CP2102N-A02-GQFN24. By type, the board carries 27 capacitors, 20 resistors, 4 connectors, 4 switches, 4 inductors and 3 ICs.

From the project

Use Chrome. For some reason, the JLCPCB order process is broken for me on FireFox. Much sadness.

Use Chrome. For some reason, the JLCPCB order process is broken for me on FireFox. Much sadness.

You'll need the following three files: *

Go to Click: "Add Gerber," and upload https://github.com/VanceVagell/kv4p-ht/blob/main/pcb/KiCAD/kv4p-ht/production/kv4pHT2.0c.zip * JLCPCB will ask you a bunch of questions about the file. The auto-loaded defaults are sufficient, but if you know you want to change something (solder mask color, etc) do it here.

Main components on the Kv4p HT

AZ1117H-3.3TRG1CP2102N-A02-GQFN24ESP32-WROOM-32E-N4

Kv4p HT bill of materials (BOM)

70 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AZ1117H-3.3TRG1
U2
1
CP2102N-A02-GQFN24
U4
1
ESP32-WROOM-32E-N4
U5
2
SS8050
Q1, Q2
1
AO3400A
Q3
1
C496551
Antenna
J1
1
SAO v.69bis
J4
1
C2894897
USB-C Socket
J5
1
GPIO Header
J6
2
100MA
100mA
F1, F2
2
C455252
PTT
SW1, SW2
1
C318884
Reset
SW3
1
C318884
Program
SW4
1
SK6812-EC20
D1
2
C2286
Red
D3, D4
1
BLM18KG102SN1D
Ferrite Bead, 1A
FB1
1
LQW2BAN27NJ00L
27nH
L1
1
LQW2BAN30NG00L
30nH
L2
1
LQW2BAN43NG00L
43nH
L3
1
Ya basic.
18pF
C1
Show 16 more
QtyPartRefs
2
C16133
100uF 6.3v
C2, C16
10
GCM1885C1H222FA16D
2.2nF Tuned VHF
Murata
C3, C8, C12, C13, C14, C15, C21, C22 +2
1
CC0402JRNPO9BN160
16pF
C4
1
Ya so basic.
10pF
C5
1
5.1PF
5.1pF
C6
3
100NF
100nF
C7, C11, C18
3
1UF
1uF
C9, C10, C17
2
10UF
10uF
C19, C20
1
2.7PF
2.7pF
C27
1
13PF
13pF
C29
1
11PF
11pF
C31
9
10K
10k
R1, R2, R9, R10, R11, R12, R13, R14 +1
5
1.2K
1.2k
R3, R6, R15, R18, R19
2
100R
R4, R5
2
5.1K
5.1k
R7, R8
2
100K
100k
R16, R21

Kv4p HT design files

The KiCad project lives in the ceilingduster/kv4p-ht-dmr repository on GitHub; these links point at the commit this page was built from.

Kv4p HT: common questions

What microcontroller does the Kv4p HT use?

The Kv4p HT is built around the ESP32-WROOM-32E-N4, from the ESP32 family.

How big is the Kv4p HT PCB?

The Kv4p HT measures 81.2 × 96.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Kv4p HT?

70 components, from 36 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 Kv4p HT design files?

From the ceilingduster/kv4p-ht-dmr 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 Kv4p HT design in my own project?

Yes, under the terms of its GPL-3.0 license, which ceilingduster chose for the repository.

Can I test firmware for the Kv4p HT 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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