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Arduino Uno R3

Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.

Price BDT 490
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EM4100 125kHz RFID Card

It is proximity ID card of 125KHz, EM4100. It has been specially manufactured and packaged to be clean from dust. And you can print any pictures on the PVC blank cards. You can use it with our RDM6300 RFID reader module.

Price BDT 18
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ESP8266 5V WIFI Relay Smart Home Remote Control Switch

ESP8266 ESP-01S 5V WiFi Relay Module Things Smart Home Remote Control Switch Phone APP ESP01 ESP-01 Wireless WIFI Module

(ESP8266 is not included)

BDT 290
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Description

https://pan.baidu.com/s/12UmcOUh-wWicUpY4xB70PQ

https://github.com/IOT-MCU

ESP8266 ESP-01S 5V WiFi Relay Module Things Smart Home Remote Control Switch Phone APP ESP01 ESP-01 Wireless WIFI Module Features: * Module operating voltage: DC 5V * Relay load capacity: 10A 250VAC 10A 125VAC 10A 30VDC 10A 28VDC ESP8266 WiFi relay module Features: * Module operating voltage: DC 5V * Relay load capacity: 10A 250VAC 10A 125VAC 10A 30VDC 10A 28VDC Size:37.3*25.6MM M3 VCC, GND supply positive and negative, the mother is ESP-01/01S interface, the button is the reset button NC relay normally closed, COM relay common, NO relay normally open

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ESP-01S The Main Parameters: Wireless standard: 802.11 b / g / n Frequency range: 2.4GHz~2.5GHz(2400M ~ 2483.5M) Data interface: UART / HSPI / I2C / I2S / IR Remote Contorl / GPIO / PWM Operating voltage: 3.0 ~ 3.6v (Suggest 3.3v) Working current: average 80mA Operating temperature: - 40 degrees to 125 degrees Storage temperature: room temperature Package size: 14.3mm * 24.8mm * 3mm External interface: N / A Wireless network mode: station / softAP / SoftAP + station Security mechanisms: WPA / WPA2 Encryption type: WEP / TKIP / AES Upgrade firmware: local serial port burn, cloud upgrade, host download burn Software development: support customer custom server, provide SDK to customer secondary development Network protocols: IPV4, TCP / UDP / HTTP / FTP User Configuration: AT + instruction set, cloud server, Android / IOS APP GND: GND GPIO2: General purpose IO, internal pull-up GPIO0: Operating mode selection: floating: Flash Boot, operating mode Dropdown: UART DownLoad, download mode RXD: serial port 0 data end RXD VCC: 3.3v, the module power supply RST: External reset pin, low reset, can be left floating or external MCU CH_PD: Chip enable, high enable, low level disable TXD: serial port 0 data end TXD

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UART EM4100 RFID Card Reader RDM6300

Overview RDM6300 125KHz cardreader mini-module is designed for reading code from 125KHz card compatible read-only tags and read/write card . It can be applied in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc.

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0.96" Inch I2C OLED Display White

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Prototype Shield With Breadboard for Arduino

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SparkFun Particle Sensor Breakout - MAX30105

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