Vector Four Enginnering/Arduino Shop/ Electronics Supermarket

- SX1278 LoRa Module 433MHz 10KM Ra-02 Wireless Spread Spectrum Transmission Socket for Smart Home DIY. - Ra-02 is a wireless transmission module based on SEMTECH’s SX1278 wireless transceiver. - It adopts advanced LoRa spread spectrum technology, with a communication distance of 10,000 meters. - It has strong ability of anti-jamming and has the function of air wake-up Consumption. - The SX1278 RF module is mainly used for long-range spread spectrum communication, and it can resist Minimize current consumption. Price 600 Birr https://vector4engineering.com/product/sx1278-lora-module/ Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

WCMCU-101 OPT101 Analog Light Sensor. - WCMCU-101 is an integrated chip built-in photodiode and transimpedance amplifier , the output voltage increases linearly with the light intensity . - Amplifier is a single supply or dual power supply design , so can be used for battery-operated devices. - Integrated photodiode and transimpedance amplifier on a single chip , discrete design, can reduce common problems, such as leakage current error , and since the gain peak noise caused by stray capacitance . - working voltage of 2.7 to 36V, quiescent current of only 120uA .. do not need infrared . Price 300 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING https://vector4engineering.com/product/wcmcu-101-opt101-analog-light-sensor/

MAX30100 - Heart Rate Oxygen Pulse Sensor. MAX30100 is a multipurpose sensor used for multiple applications. It is a heart rate monitoring sensor along with a pulse oximeter. The sensor comprises two Light Emitting Diodes, a photodetector, and a series of low noise signal processing devices to detect heart rate and to perform pulse oximetry. Operating Voltage - 1.8V to 3.3V Input Current - 20mA Integrated Ambient Light Cancellation High Sample Rate Capability Fast Data Output Capability Applications Medical Oxygen measurement devices Wearable Devices Fitness Assistant systems Price 300 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING https://vector4engineering.com/product/max30100-heart-rate-oxygen-sensor/

Load Cell - 20kg, Straight Bar (TAL220) This straight bar load cell (sometimes called a strain gauge) can translate up to 20kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the bar. The color code on the wiring is red = E+, green = O+, black = E-, and white = O-. Price 450 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING https://vector4engineering.com/product/20kg-load-cell/

MAX485 TTL to Rs-485 Interface Module - This low power transceiver module is based on the Maxim MAX485 IC to allow serial communication over very long cable runs (up 4000 feet / 1200 meters). Serial data can be transmitted in both directions (half duplex) at a data rate up to 2.5Mbps. The modules operate from a standard 5V power...Use MAX485 Interface chip - Uses differential signaling for noise immunity - Speeds up to 2.5Mbit/Sec - Multi-drop supports up to 32 devices on same bus Price 200 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING https://vector4engineering.com/product/max485-ttl-to-rs-485-interface-module/

1.6 and 2 inch 7-segment display Model - BCF E11001-AR1 Color - Red Dimension - 1.6 inch (21mm*32mm) Model - BCF E1501-AR Color - Red Dimension - 2 inch (32mm*40mm) Price of 1.6 inch display 120 Birr Price of 2 inch display 150 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

NodeMCU ESP-12E Wifi Module Operating voltage 5V Flash memory 4Mb Processor L106 32-bit Processor speed 80-160MHz RAM 32K + 80K ADC 1, 10-bit GPIO Pins: NodeMCU has 16 GPIO pins which can be used to control other peripheral devices like sensors, LEDs, switches etc. These pins can also be used as PWM pins. ADC (Analog to Digital Converter) Pin: It has one ADC channel and can be accessed through pin A0. SPI Pins: There are 4 pins (SCK, MISO, MOSI etc) available for SPI communication. I2C Pins: It has I2C functionality support but due to internal use of these pins, you have to find which pin is I2C. UART Pins: It has two UART interfaces. Since, RXD0 and TXD0 is used to upload codes to board, we cannot use them while programming this module. We can use RXD1 and TXD1 anytime. Price 400 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING https://vector4engineering.com/product/nodemcu-esp-12e-wifi-module/

DD7818TA 3.3V/12V DC-DC Buck Converter - Input Voltage: DC 10-80V - Output Voltage: DC 3.3V/12V - Maximum Current: 2.1A - Small size, stable performance and high reliability. - Support for input setback polarity protection and TVS over voltage protection. - Operates at 100KHz with a maximum conversion efficiency of 93% Price 450 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING https://vector4engineering.com/product/dd7818ta-3-3v-12v-dc-dc-buck-converter/

DC-DC Step Down Mini-360 Adjustable (Peak 3A) Voltage Regulator Module Buck Converter. Specifications: Module Properties: Non-isolated Buck Rectification: Synchronous Rectification Input Voltage: DC 4.75 - 23V Output Voltage: DC 1.0 - 17V Output Current: Rated current 1.8A (Peak 3A Max) Conversion efficiency: 96% Max. Switching Frequency: 340KHz Output Ripple: 30mV (no-load) Load regulation: ±0.5% Voltage regulation: ±2.5% Operating temperature: Industrial grade -40 to +85°C Size: 17mm * 11mm * 3.8mm (L * W * H) Price 200 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 📞 0922787347 KASE/0924468599 HABEN VECTOR FOUR ENGINEERING https://vector4engineering.com/product/mini-360-dc-dc-buck-converter/

Q100/FSQ100 PWM Controller - FSQ100 consists of an integrated Pulse Width Modulator (PWM) and SenseFET, specifically designed for high-performance, off-line, Switch-Mode Power Supplies (SMPS) with minimal external components. - This device is an integrated high-voltage power switching regulator that combines a VDMOS SenseFET with a voltage mode PWM control block. The integrated PWM controller features include a fixed oscillator, Under-Voltage Lockout (UVLO) protection, Leading Edge Blanking (LEB), an optimized gate turn-on/turn-off driver, Thermal Shutdown (TSD) protection, and temperature-compensated precision-current sources for loop compensation and fault protection circuitry. Price 40 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 📞0922787347 Kase/0924468599 Haben VECTOR FOUR ENGINEERING

Location: Winget Traffic Sefer, Across the Back door of General Winget TVET college. Call with +251910452950

STM32F407 discovery board - It comprises of thirty two-bit central processing unit having a core of Cortex M4. - It has a flash memory of one megabytes. - It contains one ninety-two kilobytes static ram with the sixty-four-kilo byte core coupled memory. - There are some additional memories units exits in it which are compact flash, NAND, NOR, SRAM. - There is a voltage range of operating volts is 1.8 to 3.6 volts. - Four USART, two UART three SPI, and two CAN interfacing can be done through this module. - It uses a thirty two-kilo hertz oscillator to calibrate the RTC module. - It has an inner thirty-two-kilo hertz calibrated RC module. - It can be operated in three modes, stand, sleep, and standby. - There are two digital to analog converter of twelve bits it has. Price 5500 birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347 @Kase / 0924468599 Haben VECTOR FOUR ENGINEERING

JAKEMY 47 in 1 TOOLKIT Model- JM-8146 Accessories - Magnetic non-slip handle, tin scraper made of memory metal, 1/4 strong magnetic extension bar, 1/4 ratchet handle, 30 degree knife, 1/4 transfer to H4 extension bar, curved tips tweezer, prying screwdriver bits, diagonal pliers, suction cup, plastic opening tool, sim card eject pin. Screwdriver bits model - H4*45mm set, H6.3*25mm set , H4 sockets set. Price 1800 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347/0924468599/0923522790 VECTOR FOUR ENGINEERING

NEW 12V/20A POWER SUPPLY Input 110/220VAC Price 2200 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347/0924468599/0923522790 VECTOR FOUR ENGINEERING

Universal Li-ion Charger Model - MP-847A Multiple power Input - 100-240VAC 50/60Hz Output - 4.2V DC 300mA - Charges lithium batteries 18650, 17670, 18490, 17500, 16340, 17335, 14430, 14500, 10440... - Doesn't charge if battery polarity is reversed. Price 550 Birr Address Megenagna Zefmesh Grandmall 3rd floor 301 0922787347/0924468599/0923522790 VECTOR FOUR ENGINEERING

አቡጊዳ የሮቦቲክስ እና ቴክኖሎጂ ማዕከል ከ ብሉም አፍሪካ ኢኒሽዬቲቭ ጋር በመተባበር ለተማሪዎች ከ ሰኔ ፪፰ እስከ ሀምሌ ፫ የሚቆይ የአንድ ቀን ነፃ የወርክሾፕ ስልጠና አዘጋጅቷል፡፡ ለመመዝገብ ማስፈንጠሪያውን ይጠቀሙ ወይም በ +251911450969 ይደዉሉ፡፡ https://forms.gle/TQofHeHnMgGR4QSj7 Abugida Robotics Technology Center has organized a one day free workshop training in partnership with bloom Africa Initiative for grade 5 to grade 12 students that will be open from July 5 - July 10. Students can register using the above google form link or call +251911450969 for further information. #4.0TECHNOLOGY #STEM #ROBOTICS #CODING #Empowering the next generation

project title : ATS and UPS monitoring system for BTS join join join👇👇👇👇 @thesisprojects for more help..👇👇👇 @niko12 arduino code 👇👇👇👇

4.2V/4200mAH Li-ion Battery Brand - Ultrafire 18650 Price 250 birr www.vector4engineering.com

Shrink tube Price 10 birr per unit www.vector4engineering.com