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N-watch V2.0

N-watch V2.0

Photo of naidanhuu

Made by naidanhuu / 3D Printing / Clocks / Sensors / Wearables / IoT

About the project

I wanted to build my open source, hackable smartwatch using esp32. And it ended up being watch with a terrible power consumption. But I love it. All models, pcb and schematic design, code were created by me. (if someone knows how to reduce the power consumption please let me know)

Project info

Difficulty: Difficult

Platforms: Arduino,  Espressif

Estimated time: 7 months+

License: MIT license (MIT)

Items used in this project

Hardware components

ST7789-240X240 ST7789-240X240 Display x 1
K2-1114SA-A4SW-06 K2-1114SA-A4SW-06 Button x 2
CP2104 CP2104 USB to UART IC x 1
BMA400 BMA400 Accelerometer x 1
ESP32-D0WDQ6-V3 ESP32-D0WDQ6-V3 MCU x 1
MBR0530 MBR0530 Diode x 1
CJ2301 CJ2301 x 1
RT9013-33GB RT9013-33GB Voltage regulator x 1
10kΩ 10kΩ Resistor x 10
100kΩ 100kΩ Resistor x 2
1uF 1uF Capacitor x 1
0.1uF 0.1uF Capacitor x 4
12pF 12pF Capacitor x 2
3.3nF/6.3V/(10%) 3.3nF/6.3V/(10%) Capacitor x 1
10nF/6.3V(10%) 10nF/6.3V(10%) Capacitor x 1
4.7pF 4.7pF Capacitor x 1
2.4pF 2.4pF Capacitor x 1
2.4nH 2.4nH Inductor x 1
S8050 S8050 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs x 3
10Ω 10Ω Resistor x 1
1kΩ 1kΩ Resistor x 2
20kΩ(5%) 20kΩ(5%) Resistor x 1
4.7kΩ 4.7kΩ Resistor x 2
W25Q32JVZPIQ W25Q32JVZPIQ Flash IC x 1
TP4054 TP4054 Battery charger IC x 1
SHT20 I2C Temperature & Humidity Sensor (Waterproof Probe) SHT20 I2C Temperature & Humidity Sensor (Waterproof Probe) Temperature sensor x 1
40MHz Crystal 40MHz Crystal x 1
U254-051T-4BH83-F1B U254-051T-4BH83-F1B USB x 1
4.7uF 4.7uF Capacitor x 1
LED-0603_R LED-0603_R SMD led x 1
301430 150mah LiPo battery 301430 150mah LiPo battery https://de.aliexpress.com/item/32917102765.html?gatewayAdapt=glo2deu&spm=a2g0o.order_detail.0.0.1bb46368iVagqI x 1

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Superglue Superglue x 1
Two sided tape Two sided tape x 1
Micro B USB cable Micro B USB cable x 1

Story

I wanted to build my open source, hackable smartwatch using esp32. And it ended up being watch with a terrible power consumption. But I love it.
All models, pcb and schematic design, code were created by me.

(if someone knows how to reduce the power consumption please let me know)

Schematics, diagrams and documents

PCB (.pdf)

Schematic (.pdf)

Schematic (EasyEDA)

Schematic (Altium Designer)

PCB (EasyEDA)

PCB (Altium Designer)

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Credits

Photo of naidanhuu

naidanhuu

I'm student, hobbyist

   

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