HardLabs

IoT

learnwithSJ·IoT·Smart-AI-Plug/Hardware/ZAP-010A/ZAP-010A.kicad_pcb

IoT PCB layout, top view — open source ESP32 board by learnwithSJ

About the IoT PCB

IoT is an open source ESP32 PCB design by learnwithSJ, published on GitHub. It is a 2-layer board measuring 105 × 58 mm, with 71 components from 32 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AMS1117-3.3, USBLC6-2P6 and DS3231M. By type, the board carries 26 resistors, 17 capacitors, 7 diodes, 6 switches, 4 ICs and 3 connectors.

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

From the project

Smart AI Timer Board

An ESP32-S3 based IoT smart plug designed for remote and scheduled control of electrical appliances.

Smart AI Plug is a smart plug concept designed around the ESP32-S3 microcontroller. The system is intended to provide wireless appliance control along with scheduled operation.

The complete circuit and PCB were designed using KiCad.

ESP32-S3 based design Single-channel relay control (SPDT) Wi-Fi and Bluetooth connectivity Relay-based appliance switching RTC-based scheduled operation USB-C interface Onboard RTC with battery backup (DS3231M + CH291-1220LF) Status LEDs - Network, Error…

IoT, from the project README
From the project README

Main components on the IoT

AMS1117-3.3ESP32-S3-WROOM-1USBLC6-2P6DS3231M

IoT bill of materials (BOM)

71 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U1
1
ESP32-S3-WROOM-1
U2
1
USBLC6-2P6
U3
1
DS3231M
U4
2
AO3400A
Q1, Q2
1
SCREW_TERMINAL_01X04
Screw_Terminal_01x04
J1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J2
1
CONN_01X04_PIN
Conn_01x04_Pin
J3
1
CH291-1220LF
BT1
1
500mA 250V
F1
1
Relay_SPDT
K1
1
MLT-8530
LS1
1
HLK-5M05
PS1
1
10D56K
RV1
5
SW_Push
SW1, SW3, SW4, SW5, SW6
1
SW_Push
SW2
3
RED
D1, D5, D6
1
MBR0520
D2
2
1N4148W
D3, D7
1
RED
D4
Show 12 more
QtyPartRefs
1
0.1UF
0.1uF
C1
1
220UF
220uF
C2
3
10UF
10uF
C3, C5, C7
10
0.1UF
0.1uF
C4, C6, C8, C9, C10, C11, C12, C13 +2
1
2.2UF
2.2uF
C16
1
0.1UF
0.1uF
C17
1
1M
R1
1
4K7
R2
11
10K
R3, R9, R13, R14, R15, R16, R17, R18 +3
2
5K1
R4, R5
6
0R
R6, R7, R19, R20, R23, R24
5
1K
R8, R10, R11, R12, R26

IoT design files

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

IoT: common questions

What microcontroller does the IoT use?

The IoT is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the IoT PCB?

The IoT measures 105 × 58 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IoT?

71 components, from 32 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 IoT design files?

From the learnwithSJ/IoT 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 IoT design in my own project?

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

Can I test firmware for the IoT 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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