Transistors
PNP and NPN are bipolar junction transistors (BJTs). BJTs are made of doped materials and allow current amplification. It can be configured as PNP and NPN. PNP and NPN transistors provide amplification or switching capability.
NPN type
BC547, BC548, BC549,
BC550, , BC147, BC148
BC107, BC517, BC337
C1815, C548, C945
BF494, BF495, S9013
S9014, S9018, S8050
2N2222, 2N3904, 2N5551
PNP TYPE
BC558, BC327, BC556, S8550, BC557
A733, S9012, S9015, 2N3906, A1015
Price 15 Birr per unit
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

XY TR01 Temperature Humidity Controller for Incubator With Indicators Hygrometer Automatic
TEMPERATURE FUNCTIONS: 1. Automatic recognition of working mode 2. Cooling 3. Heating 4. Temperature correction function
HUMIDITY FUNCTIONS: 1. Automatic recognition of working mode 2. Dehumidifying 3. Humidifying 4. Humidity correction function
WORKING MODE: The system automatically recognizes the working mode according to the starting/stopping temperature and the starting/stopping humidity.
- How to set the starting/stopping temperature function: Hold press the "TM+"/ "TM-" button for more than 3 seconds to enter the startup/stop temperature setting interface. The parameters can be changed by the "TM+" and "TM-" buttons. After the parameters are changed, wait for 6s and it will automatically save and exit.
Price 3500 Birr
0922787347/0924468599/0923522790

Power Supply 24V/5A
Brand new
Input voltage 100-120VAC 2.5A/ 200-240VAC 1.5A
Price 2000 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

Nema 23 stepper motor
Model Number: 57HS11242A4D8
Brand New
Rated Voltage: 5.88V
Type: Hybrid
Current / Phase: 4.2A
Detent Torque: 12N.cm
Motor Weight: 1.5Kg
Phase Inductance: 1.8mH
Rotor Inertia: 800g.cm2
Phase: 2
Phase Resistance: 1.4Ω
Lead Wire: 4
Motor Length: 112mm
Price 8000 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

TMC2130 V1.1 Stepper Motor Driver Module
TMC2130 V1.1 Stepper Motor Driver Module can be used separately or in combination with a CNC shield or 3D printer. This V1.1 has the SPI pins soldered upwards so that they are accessible from above.
- Two-phase stepper motor single-phase current 1.2A (peak 2.5A) motor current can be adjusted
- Only SPI support
- Broken down into 256
- Combines maximum efficiency and best motor torque for noiseless operation.
- High-precision sensorless motor load detection.
- Reduce energy consumption by 75%.
- High-load drive without out-of-step.
Price 1500 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

VL53L0X Time-of-Flight Distance Sensor
- Time of Flight Distance Sensor-VL53L0X is a high speed, high accuracy and long range distance sensor based on VL53L0X. measures the range to a target object up to 2 m away. The VL53L0X uses time-of-flight measurements of infrared pulses for ranging, allowing it to give accurate results independent of the target’s color and surface. Distance measurements can be read through a digital I²C interface. The board has a 2.8 V linear regulator and integrated level-shifters that allow it to work over an input voltage range of 2.6 V to 5.5 V, and the 0.1″ pin spacing makes it easy to use with standard solderless breadboards and 0.1″ perfboards.
Price 950 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790

Laser dot diode
Standard size: Φ6 * 10.5
Working life: 1000 hours or more
Spot modes: point-like spot, continuous output
Laser wavelength: 650nm (red)
The optical power: <5mW
Supply voltage:3VDC
Price per unit 250 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

YB4835VA AC 18V-500V/0-50A Digital Panel Meter
- DC Power Supply:DC4.5-28V
- Easy measurement, just connect to power and lead the wire through the current transformer(CT).
- Wide measurement voltage and current range. when Ac voltage is below 18V it shows zero. with 1V and 0.1A resolution accuracy.

Price 700 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

OR Gate SN74LS32N
- The SN74LS32N is a quad 2-input Positive-OR Gate
- Logic Family / Base Number: 74LS32
- Logic Type: OR
- Output Current: 8mA
- No. of Inputs: 2
- Supply Voltage Min: 4.75V
- Supply Voltage Max: 5.25V
Price 100 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

Inverter SN74LS04N NOT Gate
- Logic Function: Inverter
- Number of Elements per Chip: 6
- Maximum Propagation Delay Time @ Maximum CL (ns): 15@5V
- Absolute Propagation Delay Time (ns): 15
- Process Technology: Bipolar
- Output Type: Push-Pull
- Maximum Low Level Output Current (mA): 8
- Maximum High Level Output Current (mA): -0.4
- Minimum Operating Supply Voltage (V): 4.75
- Typical Operating Supply Voltage (V): 5
Price 100 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

ADS1115 16-Bit ADC - 4 Channel with Programmable Gain Amplifier.
For microcontrollers without an analog-to-digital converter or when you want a higher-precision ADC, the ADS1115 provides 16-bit precision at 860 samples/second over I2C. The chip can be configured as 4 single-ended input channels, or two differential channels. As a nice bonus, it even includes a programmable gain amplifier, up to x16, to help boost up smaller single/differential signals to the full range. It can run from 2V to 5V power/logic, can measure a large range of signals and its super easy to use. It is a great general purpose 16 bit converter.
Price 500 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

LJ12A3-4-Z/BY Inductive proximity Switch
Inductive type proximity switch with PNP Normally Open transistor switch. Output upon detection. Metal detector
P/N: LJ12A3-4-Z/BY
Power: 6-36VDC
Output Current: 300mA
Detection Range: 4mm
Detected material: Iron/Steel alloys
Price 1750 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

LJ18A3-8-Z/BX-5V Inductive Proximity Sensor Switch.
3 Wire Polarity: NPN Detection
Voltage: DC 5V
Detection Distance: 8mm
Ouput Status: Normally Open
Output current: 300mA
Detection objects: Conductor
Part number: LJ18A3-8-Z/BX
Screw Length: 65mm
Price 2000 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

Capacitive Proximity Sensor Switch DC6-36V LJC18A3-5-Z/BX
- LJC18A3-5-Z/BX: DC type NPN Normally Open(NO)
- shape: 18 mm in diameter
- detection distance: 0~10 mm
- operating voltage: DC 6-36V
- output mode: 3-wire type
- object: metals and non metals such as plastics, glass, water, oil, etc.; detection distance with the conductivity of an object to be detected, the dielectric constant, water absorption rate, different volume and different, for connecting metal for obtaining maximum detection distance.
Price 2000 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

Arduino Leonardo
- 23 digital I/O Pins (of which 7 can also be PWM Outputs; and 12 act as Analog Inputs.
Microcontroller - ATmega32U4
CPU - 8-Bit
Digital I/O Pins - 23
PWM Output - 7
Analog Input - 12
Flash Memory (Program Memory) - 32 KB (Out of which 4 KB is used by bootloader)
SRAM - 2.5 KB
EEPROM - 1 KB
Input Voltage - 7-12 V
Operating Voltage - 5 V
Software Used - Arduino Software (IDE)
Reset Button - Yes
ICSP Header - Yes
USB Port -1
UART (Serial Communication) - Yes
Price 2650 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

Flysky TM10 FS-TM10 2.4G 10CH RC Transmitter Controller with iA10B Receiver
- Model Type: Fixed-Wing/Glider/Helicopter /Boat/ Drone.
- 2.4GHz System: AFHDS 2A / AFDHS.It can automatic frequency hopping, remote control distance up to 700 meters without interference.
- Bidirectional Communication Capable of sending and receiving data, each transmitter is capable of receiving data from temperature, altitude and many other types of sensors, servo calibration and i-BUS Support.
- The system is built using highly sensitive low power consumption components, maintaining high receiver sensitivity, while consuming as little as one tenth the power of a standard FM system, dramatically extending battery life.
- Support Receiver Model:
GR3E,R6B,R9B,A3,BS3,BS4,BS6,A6 ,iA6,iA6B,X6B
Price 12500 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790

Breadboard ZY-201
Protoboard/Breadboard
1 Terminal Strip, 630 Tie Points
2 Distribution Strips, 200 Tie Points
3 Posts
ABS Plastic with Adhesive Tape Backing
Size: 16.6x5.5x0.85cm
Price 800 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

Nichrome wire
- Nichrome resistance wire open coil elements are used extensively in convection heating applications, R&D and as replacement coils in duct heaters, portable heaters and air process heaters, as well as in some infrared applications such as vacuum forming / thermoforming.
- Cut to length needed.
- Tightly wound coils
- 1/4" approximate inside diameter
- 70 cm long
Price 140 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING

3.5 inch TFT LCD Touch-Screen Module 480 x320 Resolution
- 3.5" diagonal LCD TFT display
- 320x480 resolution, 18-bit (262,000) color capable - our code uses only 16-bits since its faster.
- 8 bit digital interface, plus 4 or 5 control lines (12 pins minimum) or SPI mode with 4 or 5 SPI data/control lines (4 pins minimum) - not including the touch screen.
- 5V compatible! Use with 3.3V or 5V logic such as an Arduino
- Onboard 3.3V @ 150mA LDO regulator
- 6 white LED backlight with DC/DC constant-current boost. You can PWM dim the backlight
- 1x20 headers for easy breadboarding
- 4-wire resistive touchscreen
Price 4500 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING