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Smart Posture Corrector

jsitech4·Projects·ESP32/Smart_Posture_Corrector/hardware/Smart_Posture_Corrector.kicad_pcb

Smart Posture Corrector PCB layout, top view — open source ESP32 board by jsitech4
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About the Smart Posture Corrector PCB

Smart Posture Corrector is an open source ESP32 PCB design by jsitech4, published on GitHub. It is a 2-layer board measuring 105.6 × 92.7 mm, with 64 components from 54 distinct parts.

Its main chip is the ESP32-WROOM, from the ESP32 family. Other key parts include the LM2596S-3.3V, LM2596S-12V and LM2596S-5V. By type, the board carries 16 resistors, 15 capacitors, 10 diodes, 8 connectors, 4 ICs and 3 switches.

It belongs with the sensors designs in this gallery.

From the project

This project is a modular Smart Posture Corrector System built around the ESP32-WROOM-32 using a structured PlatformIO architecture.

This project is a modular Smart Posture Corrector System built around the ESP32-WROOM-32 using a structured PlatformIO architecture.

The system monitors the user posture orientation using the MPU6050 gyroscope and accelerometer sensor and intelligently detects bad posture based on a calibrated body reference angle.

When poor posture is maintained for a configured duration, the system activates:

Main components on the Smart Posture Corrector

LM2596S-3.3VLM2596S-12VESP32-WROOMLM2596S-5V

Smart Posture Corrector bill of materials (BOM)

64 components, 54 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM2596S-3.3V
U1
1
LM2596S-12V
AMS1117-3.3
U2
1
ESP32-WROOM
U3
1
LM2596S-5V
CH340C
U4
1
Motor_DC
M1
1
UMH3N
Q1
1
12MHZ
12MHz
Y1
1
MPU6050
J1
1
+IN
J5
1
-IN
J6
1
+5V
J9
1
-5V
J10
1
USB_C Conn
J11
1
SD MODULE
J15
1
BSENS
J24
1
Buzzer
BZ1
1
~
JP1
2
PC817XFP
PC817XI
OC1, OC2
1
SW_Push
SW1
1
SPST_CK_KXT3
RESET
SW2
Show 34 more
QtyPartRefs
1
SPST_CK_KXT3
FLASH
SW3
2
1N5819
D1, D4
1
1N5824
D2
1
1N5824
Red
D3
3
SM4001
Red
D5, D7, D10
1
SM4001
Green
D6
2
Red
D8, D9
1
33UH
33uH
L1
1
680UF/35V
104
C1
2
680UF/35V
100nF
C2, C7
1
470NF
680uF_35V
C3
1
100NF
4.7uF/16V
C4
1
220UF/16V
470nF
C5
1
220UF/16V
10uF_16V
C6
1
100nF
C8
1
2200UF/35V
4.7uF/16V
C9
1
2200UF/35V
220uF_16V
C10
1
220UF/16V
22pF
C11
1
100NF
22pF
C12
1
100NF
100nF
C13
1
470UF/25V
100nF
C14
1
4.7UF/16V
100nF
C15
1
680K
10k
R1
1
680K
20k
R2
1
100K
10k
R3
3
330R
R4, R5, R8
2
330R
R6, R19
1
680K
330R
R7
1
330R
10k
R11
1
10k
R13
1
330R/2W
10k
R14
2
10K
10k
R15, R17
1
10K
330R
R16
1
150R
330R
R18

Smart Posture Corrector design files

The KiCad project lives in the jsitech4/Projects repository on GitHub; these links point at the commit this page was built from.

Smart Posture Corrector: common questions

What microcontroller does the Smart Posture Corrector use?

The Smart Posture Corrector is built around the ESP32-WROOM, from the ESP32 family.

How big is the Smart Posture Corrector PCB?

The Smart Posture Corrector measures 105.6 × 92.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Smart Posture Corrector?

64 components, from 54 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 Smart Posture Corrector design files?

From the jsitech4/Projects 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 Smart Posture Corrector design in my own project?

The repository has no license, so all rights stay with jsitech4. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Smart Posture Corrector 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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