Pi 4 Adaptor 5V/3A.
5V 2.5A Raspberry Pi 3 B+ Power Supply/Adapter.
With this power supply, you can power the Raspberry Pi 3 at full load as well as up to 1.2A across the four USB ports. The power supply still has about 0.5A of output power to spare, so even at the maximum current supported by the Raspberry Pi 3, the power supply is not at its absolute maximum. It is also ideal for use by anyone over-clocking the Raspberry Pi which causes higher power requirements that a lower power adapter may not be able to supply.
Price of raspberry Pi 4 Adaptor 700 Birr
Price of Raspberry Pi 3 Adaptor 650 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
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Raspberry Pi 4 Camera Night Vision Camera Adjustable-Focus Module 5MP OV5647 Webcam Video 1080p Compatible with Raspberry 3 B+/3B/2B+.
- Provides 3.3V power output. Diagonal : 75.7 degree; Sensor best resolution : 1080p.
COMS size : 1/4 inch
Aperture (F) : 1.8
Focal Length : 3.6MM (adjustable)
Diagonal : 75.7 degree
Price 2000 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
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Proto Shield
It has a nice standard 0.1"x0.1" prototying grid with big, gold plated pads and comes with stacking headers and plain header, choose whichever you want when soldering together. You will also find A pass-thru ICSP stacking header so you can stack any kind of shield on top, and/or use an AVR programmer. It has a IC pattern for adding DIP ICs, up to 20 pins. The power rails are down the middle and sides. A reset button, an extra general use button and two 3mm general use LEDs, red and green, as well as 2 matching resistors are also included in this kit.
Price 400 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
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GT5 Pulley for CNC Machines.
Price 1750 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
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Pickit 3 Programmer
- Supports low voltage to 2.0 volts (2.0v to 6.0v range)
- Diagnostic LEDs (power, busy, error)
- Read/write program and data memory of microcontroller
- Erase of program memory space with verification
- Freeze-peripherals at breakpoint
- Program up to 512K byte flash with the Programmer-to-Go
- The MPLAB PICkit 3 allows debugging and programming of PIC and dsPIC Flash microcontrollers at a most affordable price point using the powerful graphical user interface of the MPLAB Integrated Development Environment (IDE). The MPLAB PICkit 3 is connected to the design engineer's PC using a full speed USB interface and can be connected to the target via an Microchip debug (RJ-11) connector (compatible with MPLAB ICD 2, MPLAB ICD 3 andMPLAB REAL ICE).
Price 7000 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790

PN5180 NFC
- sensor supports ISO15693 RFID high frequency IC card ICODE2 read and write
- PN5180 can support more cards with different protocols (ISO / IEC 18092.14443 A / B, FeliCa, 15693),
- Increasing the DPS function increases the stability of the reception, (more likely to be EMV, improve antenna feedback).
- PN5180 supports card emulation and PEER TOpeer mode, NFC chip.
- PN5180 is a multi-protocol NFC front end with high output power, dynamic power control (DPC), adaptive waveform control (AWC) and adaptive receiver control (ARC) and multiple power saving features, even in harsh conditions, Efficient, stable and reliable operation.
- PN5180 for POS terminals, with a new generation of mobile phones to support NFC to achieve the largest interoperability.
Price of PN5180 NFC 750 birr
Price of RC-522 RFID 650 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790

Atmega32 Microcontroller
ATmega32 is eight-bit higher enactment microcontroller. It is a higher enactment, less power consuming eight-bit AVR (automatic voltage regulator) RISC (Reduced Instruction Set Computing) constructed microcontroller. This module consists of one-kilo byte EEPROM (Electrically Erasable Programmable Read-Only Memory), two kilobyte SRAM (static RAM), 54 inputs and 69 general persistence output lines, thirty-two universal persistence functioning registers, a JTAG (Joint Test Action Group ) interfacing for border scanning and onboard repairing or debugging. It works on 1.8 to 5.5 volts. It used in different temperature control systems, in the different analog signal calculation and management techniques etc.
Price 1000 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
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PIC16F877A MICROCONTROLLER
It has a total number of 40 pins and there are 33 pins for input and output. One of the main advantages is that it can be write-erase as many times as possible because it uses FLASH memory technology. It is used in remote sensors, security and safety devices, home automation and many industrial instruments. It has a smaller 35 instructions set. It can operate up to 20MHz frequency. The operating voltage is between 4.2 volts to 5.5 volts. If you provide it voltage more than 5.5 volts, it may get damaged permanently. The maximum current each PORT can sink or source is around 100mA. Therefore, the current limit for each GPIO pin of PIC16F877A is 10 mili ampere.
Price 750 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599
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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
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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
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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
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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
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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
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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