Vector Four Enginnering/Arduino Shop/ Electronics Supermarket

DHT22 - The DHT22 is a commonly used Temperature and humidity sensor. The sensor comes with a dedicated NTC to measure temperature and an 8-bit microcontroller to output the values of temperature and humidity as serial data. The sensor is also factory calibrated and hence easy to interface with other microcontrollers. - Operating Voltage: 3.5V to 5.5V - Operating current: 0.3mA (measuring) 60uA (standby) - Output: Serial data - Temperature Range: -40°C to 80°C - Humidity Range: 0% to 100% - Resolution: Temperature and Humidity both are 16-bit - Accuracy: ±0.5°C and ±1% Price 300 Birr https://vector4engineering.com/product/dht22/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

R307 FINGER PRINT SENSOR - R307 Optical Fingerprint Reader Module - Type: Optical - Backlight: Blue - Interface: USB2.0/UART(TTL logical level) - RS232 Communication Baud Rate: 9600BPS~115200BPS changeable - Verification Speed: 0.1 sec - Scanning Speed: 0.2 sec - Character File Size: 256 bytes - Template Size:512 bytes - Storage Capacity: 1000 - Security Level: 5 (1,2,3,4,5(highest) - FRR (False Rejection Ratio): ≤1% - FAR (False Acceptance Ratio): ≤0.0001% - Resolution: 500 DPI - Voltage: DC 4.2 - 6V - Working Current: 50mA (Typical) - Peak Current: 75mA - Matching Method: 1 : N - Operating Temperature: -20 - 50 ° - Image Capture Surface: 1.5×1.1mm - Overall Size: 4.5×2.4x2cm Price 1100 Birr https://vector4engineering.com/product/r307/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

DHT11 MODULE - The DHT11 is a commonly used Temperature and humidity sensor that comes with a dedicated NTC to measure temperature and an 8-bit microcontroller to output the values of temperature and humidity as serial data. - Operating Voltage: 3.5V to 5.5V - Operating current: 0.3mA (measuring) 60uA (standby) - Output: Serial data - Temperature Range: 0°C to 50°C - Humidity Range: 20% to 90% - Resolution: Temperature and Humidity both are 16-bit - Accuracy: ±1°C and ±1% Price 250 Birr https://vector4engineering.com/product/dht11-module/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

2 CHANNEL RELAY MODULE -With isolation groove between control area and load area - Relay Voltage: 5V - Equiped with high-current Load: AC250V 10A or DC30V 10A - High impedance controller pin Pull-down circuit for the avoidance of malfunction - Control zone and the load zone isolation groove design, double FR-4 circuit board, high-end patch technology, product performance is stable and reliable. - It can be used as a single chip module for appliance control and work with both DC or AC signals where you can control the 220V AC load. - Straight Headers for control signals Price 300 Birr https://vector4engineering.com/product/2-channel-relay-module/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

POTENTIOMETER - 1K,5k,10K and 100k ohm - 3 Pin 15mm Shaft potentiometer - The Rotary potentiometer can deliver adjustable supply voltage to the electrical and electronic circuits. - Tolerance: 20% - Shaft Length: 15mm - Length 20mm - Width 17mm (Body Diameter) - Height 24mm Price 40 Birr https://vector4engineering.com/product/potentiometer/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

MICRO PUSH BUTTON - Momentary contact, 4 pins, round black push button, through hole mounting - Size: 6 x 6 x 5mm. - Rated Load:DC12V 50mA. - Contact Resistance:≤0.03Ω - Insulation Resistance:≥100MΩ - Withstand Voltage:AC250V Price 10 Birr https://vector4engineering.com/product/micro-push-button/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

1 CHANNEL RELAY MODULE - Relay Voltage: 5V - Load: AC250V 10A or DC30V 10A - High impedance controller pin - Pull-down circuit for the avoidance of malfunction - One normally closed contact and one normally open contact - Triode drive, increasing relay coil - Power supply indicator LED - Control indicator LED - With 4 fixed screw holes, hole diameter 3.1mm, convenient installation, and fixation Price 200 Birr https://vector4engineering.com/product/1-channel-relay-module/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

DB3 DIAC - DB3 DIAC DO-35 Glass Package Diode - VmBO: 32V - Max. Forward Current : 10 mA - Max. Forward Voltage : 36V - Max. Reverse Current : 10uA - Max. Reverse Voltage : 28 to 36V - Functioning as a trigger diode with a fixed voltage reference, the DB3 can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts. Price 7 Birr https://vector4engineering.com/product/db3-diac/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

8 CHANNEL RELAY MODULE - This item is a 5V 8-Channel Relay interface board,It can be controlled directly by microcontrollers such as Arduino, AVR, PIC, ARM and so on. - It is widely adopted in devices of power protection, automation technology, sport, remote control, reconnaissance and communication, as well as in devices of electro-mechanics and power electronics. - Each relay needs 15-20mA driver current. - Equipped with high-current relay : DC30V 10A,AC250V 10A,125VAC 15A - Each relay has normally open and normally closed contact. - The 8 channels are optically isolated, safe, reliable, anti-interference. - Can be selected by jumper relay and TTL or ground. - With power indicator,each channel has a status indicator. - With a relay coil to absorb the diode protection - Size: 140mm X 55mm Price 1000 Birr https://vector4engineering.com/product/8-channel-relay-module/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301

MINI BREADBOARD - Total of 400 Holes - 300 Terminal Holes - 100 Power Distribution Holes - Solderless Mini Breadboard - Allows you to easily assemble and test circuits without the use of solder, providing you with a quick and reliable method of prototyping. - Breadboard rows and columns are numbered and lettered to assist in component placement and polarities marked on each strip power rail. Price 150 Birr https://vector4engineering.com/product/mini-breadboard/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

BANANA PLUG MALE AND FEMALE - Banana Plug Male and Female to Insert Connector Banana Pin DIY Model Parts. Package Include: 1 set - 1 male and 1 female Price 40 Birr https://vector4engineering.com/product/banana-plug-male-and-female/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

BREADBOARD - Solderless Plug-in BreadBoard 830 tie-Points, 4 Power Rails, 6.5 x 2.2 x 0.3in (165 x 55 x 9mm) - The BB830 has a 630 tie-point IC-circuit area plus four 50 tie-point power rails. - The housing is made of white ABS plastic, with a printed legend giving numbers and letters for columns and rows. - The internal contacts are phosphor bronze with a plated nickel finish. - A peelable adhesive tape backing is provided for attaching it to a surface and an optional metal back plate is provided. - BPS BreadBoards are Lead-Free and RoHS Compliant. Price 220 Birr https://vector4engineering.com/product/breadboard/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

ALLIGATOR CLIP WIRE - This is Standard Alligator to alligator Cable - Each End is covered with Soft Vinyl - Ideal for use as test clips or for temporary connection - It comes in different colors - It is 48cm long Package Includes : 2 Pieces of Alligator Clip Price 100 Birr https://vector4engineering.com/product/alligator-clip-wire/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

16MM LINEAR BEARING WITH HOUSING SC16UU 16MM LINEAR BEARING - SC16UU Housing With Linear Bearing Slider Bushing, Bearing For 16mm Shaft - Dimension : H-38.5mm, W-50mm, L-44mm - Material : Stainless Steel - Bore Size : 16mm - Tolerance : 0-0.009 - Rust Proof SBR16UU 16MM LINEAR BEARING - Main parts:Aluminum housing + LM16UU-OPen linear ball bearings - The built-in material: Bearing Steel - Bore size:16mm - Dimension : H-31mm, W-44mm, L-44mm Price 600 Birr https://vector4engineering.com/product/16mm-linear-bearing-with-housing/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

9V BATTERY PLUG - Attaches to 9V battery using snap clips - Standard 2.1mm DC power plug - 12cm wire length - handles upto 27V - ~26AWG wire gauge Price 60 Birr https://vector4engineering.com/product/9v-battery-plug/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

2 PIN SCREW TERMINAL 3 PIN SCREW TERMINAL - Voltage rating 300V - Current rating 10A - Contact resistance: 20 mΩ - Wire gauge: 22-14 AWG - Wire strip length: 5 mm Price of 2 PIN SCREW TERMINAL 15 Birr Price of 3 PIN SCREW TERMINAL 20 Birr https://vector4engineering.com/product/2-pin-terminal-block/ https://vector4engineering.com/product/3-pin-screw-terminal/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

Red Light Rocker Switch - KCD4-20 - 16A/250V - 2 Position - 4 Pin ON/Off Switch - 35 x 25.5 x 10mm Price 120 Birr Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

R13-507 Push Button - Contact Structure: Normally Open (NO) - Working Power: 250VAC 3A / 125VAC 6A - Contact Resistance: 0.01 (Ω) - Insulation Resistance: 100 (MΩ) - Thread Diameter: 16mm - MATERIAL: Plastic - SECONDARY MATERIAL: Metal - DEPTH: 15 mm - HEIGHT: 24.8 mm - WIDTH: 15 mm - PRODUCT WEIGHT: 5.2 g Price 100 Birr Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

PIN HEADER - 40 Pins 2.54mm Pin Header - Male and Female types - The pin type is square - Single row male and female straight type - Pitch: Approx. 1 inch / 2.54 mm - It is breakable, can be easily cut to separate groups or individual pins - Great component for PCB - Can be used as your DIY component Price 25 Birr https://vector4engineering.com/product/pin-header/ Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

5V DC MOTOR Motor type: DC Toy Motor Terminal: 2 The direction of working: Both clock and anticlockwise Material: metal Weight: 17 g Dimension: 27.5 x 20 x 15mm Status : USED Price 50 Birr Address – Megenagna, Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING