Liquid PH Sensor
1set Liquid 0-14 PH Meter Value Detection Sensor Module Monitoring PH Controller + BNC Block PH Electrode Probe Kits for Arduino
Heating voltage: 5±0.2V (AC -• DC)
Working current: 5-10mA
The detection concentration range: PH 0-14
The detection range of temperature: 0-80 centigrade
The response time: ≤ 5S
Stability time: ≤ 60S
Power consumption: ≤ 0.5W
The working temperature: -10~50 centigrade (the nominal temperature 20 centigrade)
Working humidity: 95%RH (nominal humidity 65%RH)
Price 8500 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
1set Liquid 0-14 PH Meter Value Detection Sensor Module Monitoring PH Controller + BNC Block PH Electrode Probe Kits for Arduino
Heating voltage: 5±0.2V (AC -• DC)
Working current: 5-10mA
The detection concentration range: PH 0-14
The detection range of temperature: 0-80 centigrade
The response time: ≤ 5S
Stability time: ≤ 60S
Power consumption: ≤ 0.5W
The working temperature: -10~50 centigrade (the nominal temperature 20 centigrade)
Working humidity: 95%RH (nominal humidity 65%RH)
Price 8500 birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
Male & Female DC Power Jack Adapter Connector Plug.
- 2.1mm x 5.5mm Male Plug power connector. Connectss to Female Jack on CCTV Camera.
- 2.1mm x 5.5mm Femle Plug power connector. Connectss to male Jack on CCTV Power Adapter
- No electrical tap, No splicing, no crimping, but only a small screw driver.
- For CCTV power cable installation.
Price 250 birr per set
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
- 2.1mm x 5.5mm Male Plug power connector. Connectss to Female Jack on CCTV Camera.
- 2.1mm x 5.5mm Femle Plug power connector. Connectss to male Jack on CCTV Power Adapter
- No electrical tap, No splicing, no crimping, but only a small screw driver.
- For CCTV power cable installation.
Price 250 birr per set
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
TP4056 Lithium Cell Charger Module 5V 1A
Input voltage: 5V
maximum charging current: 1000mA
Overdischarge protection voltage: 2.5V
Cell overdischarge protection current: 3A
Charging and protect circuit at the same time
LED indicator- red is charging Green is full charged
Micro USB female outlet for input end, can be used to charge the lithium battery by phone charger directly. Besides, it still retain the input voltage wiring welding spot, good for DIY. Connect “B+”to positive electrode of battery and “B-” to the anode. Connect “Out+”and “Out-” to load.
If you use phone charger to charge this device, please be sure the input current over 1A, otherwise, it may won’t run properly.
Price 550 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
Input voltage: 5V
maximum charging current: 1000mA
Overdischarge protection voltage: 2.5V
Cell overdischarge protection current: 3A
Charging and protect circuit at the same time
LED indicator- red is charging Green is full charged
Micro USB female outlet for input end, can be used to charge the lithium battery by phone charger directly. Besides, it still retain the input voltage wiring welding spot, good for DIY. Connect “B+”to positive electrode of battery and “B-” to the anode. Connect “Out+”and “Out-” to load.
If you use phone charger to charge this device, please be sure the input current over 1A, otherwise, it may won’t run properly.
Price 550 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
1set Voice Recognition Module V3.1. This product is a speaker-dependent voice recognition module. It supports up to 80 voice commands in all. Max 7 voice commands could work at the same time. Parameter
Voltage: 4.5-5.5V
Current: <40mA
Digital Interface: 5V TTL level for UART interface and GPIO
Analog Interface: 3.5mm mono-channel microphone connector + microphone pin interface
Price 5500 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
Voltage: 4.5-5.5V
Current: <40mA
Digital Interface: 5V TTL level for UART interface and GPIO
Analog Interface: 3.5mm mono-channel microphone connector + microphone pin interface
Price 5500 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
MAX7219 – 8-Digit LED Display Driver IC
The MAX7219 is an IC designed to control a 8x8 LED MATRIX. The IC is serial input common-cathode (Common Negative) display drivers that interface microprocessors (or microcontroller) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs.
Operating voltage range: +4.0 to +5.5V
Recommended operating voltage: +5V
Maximum supply voltage: 6V
Maximum current allowed to draw through each segment pin: 100mA
Maximum current allowed to through each DIGIT ground pin: 500mA
Low power consumption
Data-to-Segment Delay Time: 2.2mSec
Operating temperature: 0°C to +70°C
Price 300 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
The MAX7219 is an IC designed to control a 8x8 LED MATRIX. The IC is serial input common-cathode (Common Negative) display drivers that interface microprocessors (or microcontroller) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs.
Operating voltage range: +4.0 to +5.5V
Recommended operating voltage: +5V
Maximum supply voltage: 6V
Maximum current allowed to draw through each segment pin: 100mA
Maximum current allowed to through each DIGIT ground pin: 500mA
Low power consumption
Data-to-Segment Delay Time: 2.2mSec
Operating temperature: 0°C to +70°C
Price 300 Birr
Address Megenagna Zefmesh Grandmall 3rd floor 301
0922787347/0924468599/0923522790
VECTOR FOUR ENGINEERING
Vector Four Enginnering/Arduino Shop/ Electronics Supermarket
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…
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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
- 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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
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
- 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
- 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
🥰1
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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
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
VECTOR FOUR ENGINEERING
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
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
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
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
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
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
- 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