High Quality FR-4 Glass Fiber Dot Matrix Double Side Prototype Printed Circuit Board (PCB).
Size: 20mm x 80mm, Total Holes: 168 (6x28) + 4x2 (8) Oval Pads Both Side, Hole Diameter: 1mm, Pitch: 0.1" (2.54mm), Thickness: 1.6mm, Material: FR-4 (glass fiber).

High Quality FR-4 Glass Fiber Dot Matrix Double Side Prototype Printed Circuit Board (PCB)
Size: 40mm x 60mm, Total Holes: 280 (14x20) + 12x2 (24) Oval Pads Both Side, Hole Diameter : 1mm,
Pitch: 0.1" (2.54mm), Thickness: 1.6mm, Material : FR-4 (glass fiber).

High Quality FR-4 Glass Fiber Dot Matrix Double Side Prototype Printed Circuit Board (PCB)
Size: 50mm x 70mm, Total Holes: 432 (18x24) + 16x2 (32) Oval Pads Both Side, Hole Diameter : 1mm,
Pitch: 0.1" (2.54mm), Thickness: 1.56mm, Material : FR-4 (glass fiber).

General Purpose Small Size Square Dot Matrix Single Side PCB
Size: 1.9"x2.9" (4.8cm x 7.3cm), Total Holes: 551 (19x29), Pitch: 0.1" (2.54mm), Thickness: 1.35mm.

General Purpose Medium Size Square Dot Matrix Single Side PCB
Size: 3.9"x1.9" (9.9cm x 4.8cm), Total Holes: 741 (39x19), Pitch: 0.1" (2.54mm), Thickness: 1.3mm.

General Purpose Medium Size Square Dot Matrix Single Side PCB
Size: 4"x3.9" (10cm x 9.8cm), Total Holes: 1521 (39x39), Pitch: 0.1" (2.54mm), Thickness: 1.4mm.

General Purpose Medium Size Square Dot Matrix Single Side PCB
Size: 5.95"x3.95" (15cm x 10cm), Total Holes: 2166 (38x57), Pitch: 0.1" (2.54mm), Thickness: 1.4mm.

General Purpose Big Size Square Dot Matrix Single Side PCB
Size: 4"x8" (10cm x 20cm), Total Holes: 2812 (37x76), Pitch: 0.1" (2.54mm), Thickness: 1.3mm.

Relay Board allows you to control larger loads and devices like AC or DC motors, fans, light bulbs etc.

Specifications:
   • Reverse polarity and Back emf protection.
   • Screw terminals for relay connections.
   • Relay Board has an LED to indicate when relay is operated.
   • Signal input for direct connection to Microcontroller, Arduino or any TTL output pins.
   • Test Button for (without signal) Relay and load testing.
   • Use 5V, 6V, 9V, 12V, 18V and 24V 5Pin relay.

IR Infrared Obstacle Sensor Module PCB - LM358
Size: 0.9"x1.9" (23mm x 48mm), Trace Width: 0.75mm, Mounting Hole: 1 x 3mm.
Components Required: IC LM358 (1pc), IR Emitter (1pc), IR Receiver (1pc), LED 5mm Red (1pc), Resistor 0.25W 1.5K, 22K & 180 Ohm (1pc each), 3-Pin Relimate Male Header (1pc), Small Preset 20K (1pc).
Note: You can change the components according to your requirement.

This RS232 circuit can be used to interface a microntroller to a PC via a RS232 connection (serial port). This circuit converts signals between RS232 voltage levels and TTL voltage levels. It is bi-directional, where TTL signals are converted to RS232 levels and RS232 levels are converted to TTL levels. The circuit can be assembled with any MAX232 compatible RS-232 Transmitter/Receiver chip.

Center Tapped Transformer Full Wave Rectifier Power Supply PCB.
Size: 1.9"x2.9" (49mm x 74mm), Track Width: 2mm, Copper Pour Clearances: 1.5mm, Mounting Hole: 4 x 3mm.

Components Required: Diode 1N4007 (2pcs), Capacitor 2200uF (1pc), Capacitor 100nF (1pc), LED 5mm (1pc), Resistor 0.5W 1.5K (1pc), 3 Way PCB Terminal Block (1pc), 4 Way Multi-color Red+Black PCB Terminal Block (1pc).
Note:
1.) You can change the components according to your requirement.
2.) You can select available option to Print Your Name on PCB.

2A Full Wave Bridge Rectifier Power Supply with Switch PCB.
Size: 1.9"x2.9" (49mm x 74mm).
Components Required: Diode 1N5408 (4pcs), Capacitor 4700uF - 35V (1pc), Capacitor 100nF - 100V (1pc), LED 5mm Red (1pc), Resistor 0.25W 1.5K (1pc), 2 Way PCB Terminal Block (2pc), SPDT 3A Switch (1pc).
Note: You can change the components according to your requirement.

2A Full Wave Bridge Rectifier Power Supply PCB.
Size: 1.9"x2.9" (49mm x 74mm), Track Width: 2.25mm, Mounting Hole: 4 x 3mm.
Components Required: Diode 1N5408 (4pcs), Capacitor 4700uF (1pc), Capacitor 100nF - 100V (1pc), LED 5mm Red (1pc), Resistor 0.5W 1.5K (1pc), 2 Way PCB Terminal Block (1pc), 4 Way Multi-color Red+Black PCB Terminal Block (1pc).
Note: You can change the components according to your requirement.