HardLabs

12 class notes

bob4o-afk·12_class_notes·IOT/практика/smart_watch/smart_watch.kicad_pcb

12 class notes PCB layout, top view — open source ESP32 board by bob4o-afk

About the 12 class notes PCB

12 class notes is an open source ESP32 PCB design by bob4o-afk, published on GitHub. It is a 2-layer board measuring 49.6 × 49.6 mm, with 43 components from 26 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the CH330N, KXTJ3-1057, MAX30102, TPS61230DRC and BQ24090DGQ. By type, the board carries 16 resistors, 11 capacitors, 9 ICs, 2 connectors, 2 switches and 2 diodes.

It belongs with the wearables designs in this gallery.

From the project

Tutorial How To 12 class

- 🔐 Programming Languages: Everything (which is written and I could copied it) - 👾 Tools: Kali Linux, Metasploit, Nmap, Wireshark - ⚙️ Platforms: Windows and Linux-based, Cloud Servers, Docker

1. Forking the repo 2. Creating a new branch with your cool feature (git checkout -b feature/YourFeature) 3. Committing your changes (git commit -m 'Add some stuff') 4. Opening a Pull Request to merge into the main repository

12 class notes, from the project README
From the project README

Main components on the 12 class notes

CH330NKXTJ3-1057MAX30102TPS61230DRCBQ24090DGQESP32-WROOM-32LC709203FQH-01TWGNLSV2T244D

12 class notes bill of materials (BOM)

43 components, 26 distinct parts.

QtyPartRefs
1
~
U1
1
CH330N
U2
1
KXTJ3-1057
U3
1
MAX30102
U4
1
TPS61230DRC
U5
1
BQ24090DGQ
U6
1
ESP32-WROOM-32
U7
1
LC709203FQH-01TWG
U8
1
NLSV2T244D
U10
1
Conn_01x02_Pin
J1
1
USB_C_Receptacle_USB2.0_16P
J2
2
SW_Push
SW3, SW4
2
LED
D1, D2
1
1.0uH
L1
4
22uF
C1, C3, C4, C5
1
10nF
C2
3
1uF
C6, C7, C16
1
100nF
C8
2
0.1 uF
C9, C10
1
203k
R1
Show 6 more
QtyPartRefs
1
100k
R2
1
1.0Meg
R3
1
1k
R4
1
2k
R5
2
1.5k
R6, R8
9
10K
R7, R9, R10, R11, R12, R13, R14, R15 +1

12 class notes design files

The KiCad project lives in the bob4o-afk/12_class_notes repository on GitHub; these links point at the commit this page was built from.

12 class notes: common questions

What microcontroller does the 12 class notes use?

The 12 class notes is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the 12 class notes PCB?

The 12 class notes measures 49.6 × 49.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 12 class notes?

43 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the 12 class notes design files?

From the bob4o-afk/12_class_notes repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 12 class notes design in my own project?

The repository has no license, so all rights stay with bob4o-afk. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 12 class notes 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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