HardLabs

Turpial hardware

btcven·turpial-hardware·KiCAD/Turpial.kicad_pcb

Turpial hardware PCB layout, top view — open source ESP32 board by btcven
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About the Turpial hardware PCB

Turpial hardware is an open source ESP32 PCB design by btcven, published on GitHub under the CERN-OHL-W-2.0 license. It is a 4-layer board measuring 140 × 47 mm, with 177 components from 87 distinct parts.

Its main chip is the ESP32-WROVER-B, from the ESP32 family. Other key parts include the CC1312R1F3RGZR, CC1190, BQ24298RTWR, BQ27441-G1 and FT2232H. By type, the board carries 72 capacitors, 47 resistors, 20 inductors, 9 ICs, 9 diodes and 7 connectors.

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

From the project

The hardware of the Turpial device.

Source files for Turpial hardware, designed using KiCAD v5.

Copyright (C) 2021 Locha Mesh Developers

According to the recomendations of Texas Instruments the stack will be a 4 layers sandwitch containing:

Main components on the Turpial hardware

CC1312R1F3RGZRCC1190BQ24298RTWRESP32-WROVER-BBQ27441-G1FT2232HAT93C46TPS7A37

Turpial hardware bill of materials (BOM)

177 components, 87 distinct parts.

QtyPartRefs
1
CC1312R1F3RGZR
IC1
1
CC1190
IC2
1
BQ24298RTWR
IC3
1
ESP32-WROVER-B
IC4
1
BQ27441-G1
U1
1
FT2232H
U2
1
AT93C46
U3
2
TPS7A37
U4, U5
2
MMBT2222
Q1, Q2
3
BSS138L
Q3, Q4, Q5
1
48 MHz
Y1
1
32.768 kHz
Y2
1
12 MHz
Y3
1
Conn_02x14_Odd_Even
J1
1
EMI Shield
J2
1
SMA
J3
1
Conn_01x02_Female
J4
1
U.FL
J5
1
Conn_02x08_Odd_Even
J6
1
USB_C_Receptacle_USB2.0
J7
Show 67 more
QtyPartRefs
1
B3992
FL1
1
RESET
SW1
1
USER_BTN
SW2
1
EN
SW3
1
BOOT
SW4
3
YELLOW
D1, D5, D7
3
GREEN
D2, D4, D6
1
BAS3010
D3
1
ESD5V3U2U
D8
1
LED_ARGB
D9
1
742792097
FB1
2
1k
FB2, FB3
2
1uH
FB4, FB5
1
27nH
L1
3
7.5nH
L2, L3, L11
2
6.8nH
L4, L5
1
11nH
L6
1
1.5nH
L7
1
15nH
L8
1
22nH
L9
1
2.4nH
L10
1
2.9nH
L12
1
9.1nH
L13
1
6.8nH
L14
1
10nH
L15
3
22uF
C2, C31, C48
21
0.1uF
C3, C4, C28, C29, C32, C33, C35, C49 +13
2
100pF
C5, C11
2
3.6pF
C6, C7
1
2.7pF
C8
1
6.2pF
C9
1
3pF
C10
1
220pF
C12
1
0.8pF
C13
9
10uF
C14, C45, C46, C47, C50, C69, C70, C71 +1
1
15pF
C15
4
12pF
C16, C21, C37, C38
3
27pF
C17, C56, C59
1
2.4pF
C18
2
47pF
C19, C25
4
1uF
C20, C34, C39, C41
1
1nF
C22
1
3.3pF
C23
1
2.2pF
C24
1
7.5pF
C26
2
8pF
C30, C36
1
0.047uF
C42
5
4.7uF
C43, C53, C54, C58, C60
1
0.47uF
C44
2
0.01uF
C73, C74
1
100k
R1
19
10k
R2, R3, R4, R10, R11, R12, R13, R15 +11
1
3.3k
R5
1
47
R6
1
5.23k
R7
1
0R
R8
2
30.1k
R9, R43
2
1k
R14, R23
1
0.01
R16
7
2k
R17, R18, R27, R33, R34, R35, R36
2
12k
R19, R30
1
0R
R25
2
5.1k
R31, R32
3
220R
R39, R40, R41
1
52.3k
R42
1
56.2k
R44
1
28.0k
R45

Turpial hardware design files

The KiCad project lives in the btcven/turpial-hardware repository on GitHub; these links point at the commit this page was built from.

Turpial hardware: common questions

What microcontroller does the Turpial hardware use?

The Turpial hardware is built around the ESP32-WROVER-B, from the ESP32 family.

How big is the Turpial hardware PCB?

The Turpial hardware measures 140 × 47 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Turpial hardware?

177 components, from 87 distinct parts. The full bill of materials is listed on this page.

Where can I download the Turpial hardware design files?

From the btcven/turpial-hardware repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Turpial hardware design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which btcven chose for the repository.

Can I test firmware for the Turpial hardware 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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