2 layers52.8 × 71.8 mm
ESPBoosted
schoolllex/ESPBoosted
A custom, feature-rich ESP32-WROOM-32 development board featuring built-in environmental sensors, power management, and expansion interfaces.
51 parts
2 layers95 × 54 mm
Esp smart clock
martinsram3k/Node-Smart-ClockThe project blends modern electronics with premium natural materials:
- Size
- 95 × 54 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 96
- Nets
- 81
- Pads
- 277
- Tracks, vias
- 445, 84
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Jan 2026
- Updated
- 21 Jan 2026
Overview
Esp smart clock is an open-source printed circuit board by martinsram3k, from the martinsram3k/Node-Smart-Clock repository on GitHub. It is a 2-layer board of 95 × 54 mm with 96 parts on 81 nets, routed with 445 tracks and 84 vias.
It is built around the ESP32-WROOM-32D-N4, CH340K and AMS1117-3.3, with the TP4056, MTLW-101-05-G-D-150 and WS2812B among its other parts. Its parts include 24 connectors, 10 resistors, 10 diodes, 4 ICs and 4 transistors. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Main components
8
ESP32-WROOM-32D-N4
SMD,25.5x18mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20.5dBm Bluetooth4.2 ESP32-DOWD On-board PCB Antenna UART、SPI、I2C、GPIO SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
CH340K
ESSOP-10-150mil-1mm-20℃~+70℃ 2Mbps 3.3V、5V USB 2.0 USB to serial ESSOP-10-150mil-1mm USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery ManagementMTLW-101-05-G-D-150
插件-55℃~+125℃ 2 2.54mm 2P 5.2A Black Gold Phosphor bronze Through Hole 插件 Pin Headers ROHSSamtecPin Headers
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
S8050
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 120 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
1N4148WS
SOD-3231.25V@150mA 100V 150mA 1uA@75V 200mW 2A 4ns Independent SOD-323 Switching Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Switching Diodes
README
README.mdNode Smart Clock
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.
Key Features
- 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 battery.
- Visual Notifications: An array of 8 individually addressable LEDs on top for animations, progress bars, and alerts.
- Precise Timekeeping: Dedicated PCF8563T RTC chip with a coin-cell backup, ensuring your alarms work even if the main power is lost.
- Energy Efficient: Optimized for Deep Sleep with a side-mounted touch sensor for intuitive wake/sleep control.
Design & Construction
The project blends modern electronics with premium natural materials:
- 3D Printed Chassis: A minimalist housing designed for durability using brass heat inserts.
- Hybrid Materials: Front and back panels made of real wood, suitable for custom laser engraving.
- Custom PCB: A professional-grade board integrating the ESP32-S3, 18650 battery charging.
Hardware (BOM)
| Designator | LCSC # | Value / Description | Qty | Unit Price | Ext. Price | Note |
|---|---|---|---|---|---|---|
| U1 | C473012 | ESP32-WROOM-32D-N4 | 1 | $3.78790 | $3.78790 | Main MCU |
| U4 | C15255 | PCF8563T (RTC) | 1 | $0.32000 | $0.32000 | Not in export, estimated |
| U5 | C6186 | AMS1117-3.3 (LDO) | 5 | $0.17350 | $0.86750 | Voltage regulator |
| U6 | C16581 | TP4056 (Charger) | 5 | $0.17840 | $0.89200 | Battery charging |
| D1-D8 | C22461793 | WS2812B (RGB LED) | 8 | $0.03840 | $0.30720 | Addressable LEDs |
| D10-D12 | C2128 | 1N4148WS (Diode) | 4 | $0.02100 | $0.08400 | Power OR Logic |
| Q1-Q4 | C318884 | S8050 (Transistor) | 10 | $0.01250 | $0.12500 | Reset/Motor/Buzzer |
| J1 | C2927039 | USB-C 16-pin | 1 | $0.23190 | $0.23190 | Power/Data |
| BT1 | C70381 | Battery Holder CR1220 | 1 | $0.13840 | $0.13840 | RTC Backup |
| C1, C2, C6 | C1525 | 100nF (0402) | 100 | $0.00130 | $0.13000 | Minimal order is 100pcs |
| C3, C4, C5 | C13585 | 10uF (1206) | 10 | $0.02700 | $0.27000 | Power decoupling |
| x | x | 2.4 Inch TFT Display | 1 | $5.90000 | $5.90000 | Display |
| x | x | H7BC ENS160+AHT21 | 1 | $7.95000 | $7.95000 | Temp and co2 sensor |
| x | x | TTP223 | 1 | $0.07000 | $0.07000 | Touch sensor |
| x | x | BH1750 | 1 | $2.49000 | $2.49000 | Ambient light sensor |
| x | x | Brass Copper Embed Insert Nut | 8 | $0.04000 | $0.32000 | M3xL4xOD4.2 |
Download sheet for production: Google sheets.
Gallery
Software & Development
This project is fully Open-Source.
- Framework: Arduino IDE / PlatformIO.
- Connectivity: Integrated WiFi for NTP time sync and API data fetching.
Support the Project
If you like the Node Smart Clock, there are several ways you can support the development:
- Buy Me a Coffee: Support my work directly at buymeacoffee.com/martin.sram3k.
- Follow My Journey: Check out all my projects and social media via my Linktree.
Your backing helps us continue developing new open-source features and high-quality hardware for the community.
License: MIT – Feel free to share, modify, and build!
Parts
96| Qty | Value | Footprint | References |
|---|---|---|---|
| 34 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H1, H1, H1, H1, H1, H1, H1, H1, H1, H1, H1, H1, H1, H1, H1 +18 |
| 23 | MTLW-101-05-G-D-150 | footprints:SAMTEC_MTLW-101-05-G-D-150 | J2, J10, J11, J12, J13, J14, J15, J16, J17, J18, J19, J20, J21, J22, J23, J24 +7 |
| 8 | WS2812B | PCM_JLCPCB:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1, D3, D4, D5, D6, D7, D8, D9 |
| 6 | , , , , , | ||
| 4 | 10kΩ | PCM_JLCPCB:R_0402 | R1, R2, R12, R13 |
| 4 | S8050 | PCM_JLCPCB:Q_SOT-23 | Q1, Q2, Q3, Q4 |
| 3 | 1.2kΩ | PCM_JLCPCB:R_0402 | R6, R7, R8 |
| 2 | 100nF | PCM_JLCPCB:C_0402 | C1, C2 |
| 2 | 1N4148WS | PCM_JLCPCB:D_SOD-323 | D2, D10 |
| 2 | 5.1kΩ | PCM_JLCPCB:R_0402 | R4, R5 |
| 1 | 100kΩ | PCM_JLCPCB:R_0402 | R3 |
| 1 | 10uF | PCM_JLCPCB:C_1206 | C4 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | CH340K | Package_SO:SSOP-10-1EP_3.9x4.9mm_P1mm_EP2.1x3.3mm | U8 |
| 1 | Connector, USB-TYPE-C-16P | PCM_JLCPCB:TYPE-C-SMD_HX-TYPE-C-16PIN | J1 |
| 1 | ESP32-WROOM-32D-N4 | martin:MODULE_ESP32-WROOM-32D-N4 | U1 |
| 1 | TP4056 | PCM_JLCPCB:ESOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP | U3 |
| 1 | Tactile Button, 160gf | PCM_JLCPCB:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2 | S1 |
Questions
How big is the Esp smart clock PCB?
It measures 95 × 54 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Esp smart clock use?
96 parts, built around the ESP32-WROOM-32D-N4, CH340K, AMS1117-3.3 and TP4056. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Esp smart clock KiCad files?
From the martinsram3k/Node-Smart-Clock repository on GitHub, at the commit this page was made from: the board is pcb/esp_smart_clock/esp_smart_clock-backups/esp_smart_clock-2026-01-01_143557/esp_smart_clock.kicad_pcb and its schematic pcb/esp_smart_clock/CR1220-2 /CR1220-2 .kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Esp smart clock design in my own project?
Its repository states no licence, so its author keeps all rights: ask martinsram3k before reusing the design.
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