Project Type: PCB Project.
Platform: EasyEDA
Features:
- Easily printable double layer PCB board.
- A second version can be printed with DIY methods, even without through-hole plating.
- Optocoupler is used to drive the relay lock.
- Built in buzzer for alarm.
Schematic diagram:
Version 1(Double layer with plated through hole):
This version needs to be printed by a manufacturer who can provide plated through holes. May not be manuactured with DIY techniques.
Design Rules:
- Trace width :20 mil or .508 mm (min)
- Clearance: 20 mil or 0.508 mm (min)
- Via Diameter: 50 mil
- Via drill Diameter: 30 mil
2D View:
Top:
Bottom :
3D view:
Top view:
Bottom view:
Version 2(Double layer DIY flexible i.e., no through hole plating required):
It's the DIY flexible version, can be printed in double layer without any through hole plating. We just need to short some multilayer pads with pins.
Or one may just print the bottom side as single layes and then connect the top side with wires. may not look nice but works if done paitently.
Design Rules:
- Trace width :30 mil or .762 mm (min)
- Clearance: 35 mil or 0.889 mm (min)
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