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Node-Smart-Clock

martinsram3k·Node-Smart-Clock·pcb/esp_smart_clock/esp_smart_clock.kicad_pcb

Node-Smart-Clock PCB layout, top view — open source ESP32 board by martinsram3k
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About the Node-Smart-Clock PCB

Node-Smart-Clock is an open source ESP32 PCB design by martinsram3k, published on GitHub. It is a 2-layer board measuring 95 × 54 mm, with 41 components from 19 distinct parts.

Its main chip is the ESP32-WROOM-32D-N4, from the ESP32 family. Other key parts include the CR1220-2, AMS1117-3.3, TP4056, PCF8563T and CH340K. By type, the board carries 11 resistors, 10 diodes, 6 ICs, 6 capacitors, 4 connectors and 2 transistors.

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

From the project

Node Smart Clock is an open-source, multi-functional desk clock powered by the ESP32-WROOM-32D-N4. It is designed as a central hub for makers, entrepreneurs, and crypto enthusiasts, combining advanced environmental sensing with real-time data tracking.

Node Smart Clock is an open-source, multi-functional desk clock powered by the ESP32-WROOM-32D-N4. It is designed as a central hub for makers, entrepreneurs, and crypto enthusiasts, combining advanced environmental sensing with real-time data tracking.

- Environmental Monitoring: Track CO2 levels, Air Quality (ENS160), and temperature in real-time. - Business & Crypto Tracker: Live tracking for cryptocurrency prices, social media follower counts, and Shopify order notifications. - Smart Display: 2.8" TFT display with automatic brightness adjustment based on ambient light (GY-302) to save…

Node-Smart-Clock, from the project README
From the project README

Main components on the Node-Smart-Clock

CR1220-2ESP32-WROOM-32D-N4AMS1117-3.3TP4056PCF8563TCH340K

Node-Smart-Clock bill of materials (BOM)

41 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CR1220-2
IC1
1
ESP32-WROOM-32D-N4
U1
1
AMS1117-3.3
U2
1
TP4056
TOPPOWER(Nanjing Extension Microelectronics)
U3
1
PCF8563T
NXP Semicon
U4
1
CH340K
U8
2
S8050
MDD（Microdiode Electronics）
Q2, Q3
1
Q13FC1350000400
Seiko Epson
X1
1
C2927039
Connector, USB-TYPE-C-16P
J1
3
PHR-2
P1, P2, P3
1
C318884
Tactile Button, 160gf
XKB Connectivity
S1
8
WS2812B
D1, D3, D4, D5, D6, D7, D8, D9
2
1N4148WS
Changjiang Electronics Tech (CJ)
D11, D12
3
100NF
100nF
Samsung Electro-Mechanics
C1, C2, C6
3
10UF
10uF
Samsung Electro-Mechanics
C3, C4, C5
4
10kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R2, R12, R13
1
100kΩ
UNI-ROYAL(Uniroyal Elec)
R3
5
5.1kΩ
UNI-ROYAL(Uniroyal Elec)
R4, R5, R9, R10, R11
1
1.2kΩ
UNI-ROYAL(Uniroyal Elec)
R6

Node-Smart-Clock design files

The KiCad project lives in the martinsram3k/Node-Smart-Clock repository on GitHub; these links point at the commit this page was built from.

Node-Smart-Clock: common questions

What microcontroller does the Node-Smart-Clock use?

The Node-Smart-Clock is built around the ESP32-WROOM-32D-N4, from the ESP32 family.

How big is the Node-Smart-Clock PCB?

The Node-Smart-Clock measures 95 × 54 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Node-Smart-Clock?

41 components, from 19 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 Node-Smart-Clock design files?

From the martinsram3k/Node-Smart-Clock 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 Node-Smart-Clock design in my own project?

The repository has no license, so all rights stay with martinsram3k. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Node-Smart-Clock 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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