DoWatch DIY01

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DoWatch
Schematic diagram
DoWatch DIY01-1.jpg
DoWatch body size
DoWatch_DIY01-2.jpg
DoWatch power dissipation (It is only the official preliminary measurement result of V1.01)
DoWatch DIY01-3.jpg
Part list
DoWatch DIY01-4.jpg
MCU, RTC IC, Temperature sensor, Lithium battery, Steel ball, USB interface, Magnet
DoWatch DIY01-5.jpg
OLED screen, Fuse, LED, Charger control IC, Capacitors, Resistors, Diode
DoWatch DIY01-6.jpg
In DoWatch making process, there are some tools should be used:
Pointed welding heads (require additional purchase)

DoWatch DIY01-7.jpg
Blade welding heads (require additional purchase)
DoWatch DIY01-8.jpg
Clamps for compressing two pieces of PCBs together in welding (require additional purchase)
DoWatch DIY01-9.jpg
A roll of double sided adhesive tape (require additional purchase)
DoWatch DIY01-10.jpg
Before making the DoWatch, please check whether the PCBs (10 pieces) have scratches or are damage.