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Esp32InductanceMeterV2

RobieElliz·esp32InductanceMeterV2·Inductance Meter V2-0 - KiCAD/Inductance Meter V2-0.kicad_pcb

Esp32InductanceMeterV2 PCB layout, top view — open source ESP32 board by RobieElliz

About the Esp32InductanceMeterV2 PCB

Esp32InductanceMeterV2 is an open source ESP32 PCB design by RobieElliz, published on GitHub under the MIT license. It is a 2-layer board measuring 94 × 99 mm, with 79 components from 51 distinct parts.

Its main chip is the ESP32-WROOM-32U, from the ESP32 family. Other key parts include the TPS631000DRLR, DW01A, TLV3202AIDR, 100nF MKP and IP2312. By type, the board carries 28 resistors, 17 capacitors, 8 ICs, 6 diodes, 4 connectors and 4 transformers.

It belongs with the displays & leds and power & battery designs in this gallery.

From the project

Portable ESP32 Inductance Meter: A low-cost, high-precision tool with dual 100nF/5µF refs, a TLV3202 comparator, fast USB-C (IP2312) charging, and a 2.4-inch OLED display for real-time readings.

A DIY ESP32-based inductance meter designed to bridge the gap in electronics testing. Developed at the Polytechnic University of the Philippines, this low-cost, high-precision tool is ideal for students, researchers, and hobbyists.

Accurate inductance measurement is crucial in electronics. Yet, professional meters are often expensive and inaccessible. This project provides an affordable alternative for educational and experimental applications.

Esp32InductanceMeterV2, from the project README
From the project README

Main components on the Esp32InductanceMeterV2

ESP32-WROOM-32UTPS631000DRLRDW01ATLV3202AIDR100nF MKPIP2312XH UART

Esp32InductanceMeterV2 bill of materials (BOM)

79 components, 51 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32U
U1
1
TPS631000DRLR
U2
1
DW01A
U3
1
TLV3202AIDR
U4
1
100nF MKP
U5
1
IP2312
U6
1
XH UART
U7
1
~
U8
1
FS8205A
Q1
1
SS8050
Q2
1
S Term
J1
3
Touch
J2, J3, J4
1
18650
BT1
1
G5V-1-DC3
K1
1
BNC
RF1
1
BOOT
SW1
1
ENABLE
SW2
1
ON-OFF
SW3
4
Solderable Tie
T1, T2, T3, T4
1
TYPE-C 6P(073)
USB1
Show 31 more
QtyPartRefs
1
BAT54-7-F
D1
3
LED
D2, D3, D6
2
1N4007 A7
D4, D5
1
1uH
L1
1
2.2uH
L2
1
SMD L
L3
3
100nF
C1, C2, C17
1
47uF
C3
5
22uF
C4, C11, C12, C13, C16
1
100n
C5
1
5uF MKP
C6
1
100nF MLCC
C7
1
4.7uF MLCC
C8
1
1uF CBB
C9
1
2.2nF
C10
2
1uF
C14, C15
6
10K
R1, R2, R19, R23, R27, R28
1
511K
R3
1
91K
R4
2
100K
R5, R6
4
100R
R7, R16, R17, R24
2
5.1K
R8, R10
2
1K
R9, R18
1
1M
R11
2
47K
R12, R13
1
0.5R
R14
1
51K
R15
2
150R
R20, R26
1
40K
R21
1
50K
R22
1
33R
R25

Esp32InductanceMeterV2 design files

The KiCad project lives in the RobieElliz/esp32InductanceMeterV2 repository on GitHub; these links point at the commit this page was built from.

Esp32InductanceMeterV2: common questions

What microcontroller does the Esp32InductanceMeterV2 use?

The Esp32InductanceMeterV2 is built around the ESP32-WROOM-32U, from the ESP32 family.

How big is the Esp32InductanceMeterV2 PCB?

The Esp32InductanceMeterV2 measures 94 × 99 mm, has 2 copper layers and is 1.600198 mm thick.

How many components are on the Esp32InductanceMeterV2?

79 components, from 51 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp32InductanceMeterV2 design files?

From the RobieElliz/esp32InductanceMeterV2 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Esp32InductanceMeterV2 design in my own project?

Yes, under the terms of its MIT license, which RobieElliz chose for the repository.

Can I test firmware for the Esp32InductanceMeterV2 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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