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Test

DiegoBriceno03·Portable-Biofeedback·Protype_Rev-/Prototype_Rev-/test.kicad_pcb

Test PCB layout, top view — open source ESP32 board by DiegoBriceno03

About the Test PCB

Test is an open source ESP32 PCB design by DiegoBriceno03, published on GitHub. It is a 2-layer board measuring 70.6 × 66.3 mm, with 104 components from 43 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the MAX30101EFD+, CP2102N-A01-GQFN28, MAX5419LETA+, LM324 and TPS61232DRCR. By type, the board carries 44 resistors, 33 capacitors, 9 ICs, 7 diodes, 4 transistors and 3 connectors.

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

From the project

Portable Biofeedback device for anxiety management

A repository that stores hardware and software files developed for the Portable Biofeedback Device, as worked on and built by students in the Electrical & Computer Engineering (ECE) Department of the College of Engineering & Computer Science (CECS) at the University of Central Florida (UCF) in Orlando, Florida.

The accompanying Android app was developed in Android Studio 3.5.3, making use of Android SDK/API 21 (Android 5).

Main components on the Test

MAX30101EFD+CP2102N-A01-GQFN28MAX5419LETA+LM324ESP32-WROOM-32TPS61232DRCRBQ24072TRGTRTLV75718PDBVRTLV75733PDBVR

Test bill of materials (BOM)

104 components, 43 distinct parts.

QtyPartRefs
1
MAX30101EFD+
U1
1
CP2102N-A01-GQFN28
U2
1
MAX5419LETA+
U3
1
LM324
U4
1
ESP32-WROOM-32
U5
1
TPS61232DRCR
U6
1
BQ24072TRGTR
U7
1
TLV75718PDBVR
U8
1
TLV75733PDBVR
U9
2
SS8050-G
Q1, Q2
1
2N7002ET7G
Q3
1
BSS83P
Q4
1
USB_B_Micro
J1
1
Interface Hub
J2
1
Conn_01x02
J3
1
Charger / Battery Bypass
JP2
1
EN
SW1
1
BOOT
SW2
3
DESD5V0S1BB-7
D1, D2, D3
3
Red
D4, D5, D6
Show 23 more
QtyPartRefs
1
Green
D7
1
1uH
L1
7
0.1uF
C1, C2, C7, C10, C11, C12, C13
11
1uF
C3, C5, C20, C24, C25, C26, C27, C30 +3
8
10uF
C4, C6, C16, C17, C18, C21, C22, C23
4
4.7uF
C8, C9, C28, C29
1
22uF
C14
1
100nF
C15
1
22nF
C19
11
10k
R1, R2, R7, R16, R24, R25, R26, R27 +3
1
22.1k
R3
1
47.5k
R4
3
1.5k
R5, R22, R23
2
2K
R6, R29
2
0R
R8, R9
3
530R
R10, R11, R35
2
4.7k
R12, R13
5
200k
R14, R15, R19, R20, R37
10
100k
R17, R18, R30, R31, R33, R34, R39, R40 +2
1
1M
R21
1
1.78k
R32
1
320R
R36
1
49.9k
R38

Test design files

The KiCad project lives in the DiegoBriceno03/Portable-Biofeedback repository on GitHub; these links point at the commit this page was built from.

Test: common questions

What microcontroller does the Test use?

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

How big is the Test PCB?

The Test measures 70.6 × 66.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Test?

104 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the Test design files?

From the DiegoBriceno03/Portable-Biofeedback repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Test design in my own project?

The repository has no license, so all rights stay with DiegoBriceno03. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Test 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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