- On sale!

Reference: RBD-1354
Length: 8 inches/20 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Reference: 0245
Choose your desire Resistor value from below:
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: RBD-0351
Contactless transmission of data and supply energy (no battery needed) Operating distance: Up to 100mm (depending on antenna geometry) RoboticsBD Operating frequency: 13.56MHz Data transfer: 106 kbit/s Data integrity: 16 Bit CRC, parity, bit coding bit counting Anticollision Typical ticketing transaction: <100 ms ( including backup management)...
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
Reference: RBD-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
Reference: RBD-0094
Arduino UNO in Bangladesh Micro-controller : ATmega328. Operating Voltage : 5V. Input Voltage (recommended) : 7-12V. Digital I/O Pins : 14 (of which 6 provide PWM output). Analog Input Pins : 6.
The Arduino Uno R3 with Cable 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; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.
Please be careful before purchasing an Arduino Uno. Recent chip shortages have caused lower-quality or counterfeit chips/ICs to spread throughout the market. Some importers bring these items because their purchase price is low. However, at RoboticsBD, we never compromise on quality.
General Specification | |
Model Type | UNO Rev R3 |
Microcontroller Chip | ATmega328 |
Operating Voltage (VDC) | 5 |
Input Voltage(Recommended) | 7-12V |
Input Voltage (limit) | 6-20V |
Analog I/O Pins | 6 |
Digital I/O Pins | 14 (of which 6 provide PWM output) |
PWM Digital I/O Pins | 6 |
DC Current per I/O Pin (mA) | 40 |
DC Current for 3.3V Pin (mA) | 50 |
Clock Speed | 16 MHz |
SRAM | 2 |
EEPROM | 1 KB (ATmega328) |
Flash Memory | 32 KB |
On Board LEDs | On/Off, L (PIN 13), TX, RX |
Dimensions in mm (LxWxH) | 75 x 54 x 12 |
Weight (gm) | 28 (without cable) 54 (with cable) |
Shipment Weight | 0.08 kg |
Shipment Dimensions | 9 × 6 × 4 cm |
The Uno R3 can be powered via the USB connection or with an external power supply. The power source is selected automatically.
External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1mm center-positive plug into the board’s power jack. Leads from a battery can be inserted in the GND and Vin pin headers of the POWER connector.
The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the 5V pin may supply less than five volts and the board may be unstable. If using more than 12V, the voltage regulator may overheat and damage the board. The recommended range is 7 to 12 volts.
The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).
Each of the 14 digital pins on the Uno can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have specialized functions:
The Uno R3 has 6 analog inputs, labeled A0 through A5, each of which provides 10 bits of resolution (i.e. 1024 different values). By default, they measure from ground to 5 volts, though is it possible to change the upper end of their range using the AREF pin and the analogReference() function. Additionally, some pins have specialized functionality:
There are a couple of other pins on the board:
See also the mapping between Arduino pins and ATmega328 ports. The mapping for the Atmega8, 168, and 328 is identical.
The Uno R3 has a number of facilities for communicating with a computer, another Arduino, or other microcontrollers. The ATmega328 provides UART TTL (5V) serial communication, which is available on digital pins 0 (RX) and 1 (TX). An ATmega16U2 on the board channels this serial communication over USB and appears as a virtual com port to software on the computer. The ’16U2 firmware uses the standard USB COM drivers, and no external driver is needed. However, on Windows, a .inf file is required. The Arduino software includes a serial monitor which allows simple textual data to be sent to and from the Arduino board. The RX and TX LEDs on the board will flash when data is being transmitted via the USB-to-serial chip and USB connection to the computer (but not for serial communication on pins 0 and 1).
A SoftwareSerial library allows for serial communication on any of the Uno’s digital pins.
The ATmega328 also supports I2C (TWI) and SPI communication. The Uno R3 software includes a Wire library to simplify use of the I2C bus; see the documentation for details. For SPI communication, use the SPI library.
The Uno R3 can be a program with the Arduino software (download). Select “Arduino Uno from the Tools > Board menu (according to the microcontroller on your board). For details, see the reference and tutorials.
The ATmega328 on the Uno R3 comes pre-burn with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol (reference, C header files).
You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header; see these instructions for details.
The ATmega16U2 (or 8U2 in the rev1 and rev2 boards) firmware source code is available. The ATmega16U2/8U2 is load with a DFU bootloader, which can be activated by:
You can then use Atmel’s FLIP software (Windows) or the DFU programmer (Mac OS X and Linux) to load a new firmware. Or you can use the ISP header with an external programmer (overwriting the DFU bootloader). See this user-contributed tutorial for more information.
Rather than requiring a physical press of the reset button before an upload, the Arduino Uno is designed in a way that allows it to be reset by software running on a connected computer. One of the hardware flow control lines (DTR) of theATmega8U2/16U2 is connected to the reset line of the ATmega328 via a 100 nano-farad capacitor. When this line is asserted (taken low), the reset line drops long enough to reset the chip. The Arduino software uses this capability to allow you to upload code by simply pressing the upload button in the Arduino environment. This means that the boot-loader can have a shorter timeout, as the lowering of DTR can be well-coordinated with the start of the upload.
This setup has other implications. When the Uno is connected to either a computer running Mac OS X or Linux, it resets each time a connection is made to it from software (via USB). For the following half-second or so, the boot-loader is running on the Uno. While it is a program to ignore malformed data (i.e. anything besides an upload of new code), it will intercept the first few bytes of data sent to the board after a connection is open. If a sketch running on the board receives one-time configuration or other data when it first starts, makes sure that the software with which it communicates waits for a second after opening the connection and before sending this data.
The Uno R3 contains a trace that can be cut to disable the auto-reset. The pads on either side of the trace can be soldered together to re-enable it. It’s label “RESET-EN”. You may also be able to disable the auto-reset by connecting a 110-ohm resistor from 5V to the reset line; see this forum thread for details.
The Arduino Uno has a resettable polyfuse that protects your computer’s USB ports from shorts and overcurrent. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed.
The maximum length and width of the Uno PCB are 2.7 and 2.1 inches respectively, with the USB connector and power jack extending beyond the former dimension. Four screw holes allow the board to be attached to a surface or case. Note that the distance between digital pins 7 and 8 is 160 mil (0.16″), not an even multiple of the 100 mil spacing of the other pins.
1 x Arduino Uno R3
1 x USB Cable
The latest price of Arduino Uno R3 in Bangladesh is BDT 949 You can buy the Arduino Uno R3 at best price from our RoboticsBD or visit RoboticsBD.
Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product |
Product Images are shown for illustrative purposes only and may differ from the actual product. |
Great Product
Reference: RBD-0020
Model: SG90 Weight: 9 gm Operating voltage: 3.0V~ 7.2V Servo Plug: JR Stall torque @4.8V : 1.2kg-cm Stall torque @6.6V : 1.6kg-cm Note: Product images/ Components brand may vary from actual product as our stock rotates.
Reference: RBD-0022
Affordable Price Operating Voltage: 5 V Sonar Sensing Range: 2-400 cm Max. Sensing Range: 450 cm Frequency: 40 kHz RoboticsBD
Reference: RBD-0023
Wide Working Voltage Range: DC 4.5V- 20V Current Drain: <60uA Detection Angle: <140° Detection Distance: 3 to 7m (can be adjusted) Blockade time: 2.5s (Default) Work temperature: -20-+80°C
Reference: RBD-0685
Detection distance: 2 ~ 30cm Detection angle: 35 ° Comparator chip: LM393 3mm screw holes for easy mounting
Reference: RBD-1807
Altera Cyclone IV FPGA EP4CE6E22C8N EP4CE6 Development Board
Reference: RBD-1523
Microcontroller: ATmega328P Circuit Operating Voltage: 5V Clock frequency: 16MHz. 6 PWM port: D3, D5, D6, D9, D10, D11. Use For Atmel Atmega328P-AU microcontroller. Support serial download. Support 9V battery. A pair of TTL level serial port transceiver : RX / TX.
Reference: RBD-0032
Operating Voltage (logic level): 5V With Mini USB 8 analog inputs ports: A0 ~ A7 14 Digital input / output ports: TX, RX, D2 ~ D13 1 pair of TTL level serial transceiver ports RX / TX Using Atmel Atmega328P-AU MCU There is a bootloader installed in it Standard 0.1” spacing DIP (breadboard friendly). Manual reset switch.
Reference: RBD-2126
Manufacturer: China Support TWI and SPI communication Input voltage (recommended) range from 7V to 12V Input Voltage (limit) range from 6V to 20V 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs) Onboard ATmega32u4 microcontroller with 32KB flash memory, 2.5KB SRAM and 1KB EEPROM
Reference: RBD-2242
Wearable e-textile technology. Designed with large sew tabs LED Yellow Color
Reference: RBD-1827
Altera Cyclone IV EP4CE6 FPGA Development Board NIOSII EP4CE PCB USB Blaster Jtag AS Programmer
Reference: RBD-1255
Integrated 0.96″ OLED Micro USB connection Compatible with Arduino Compatible with NodeMCU(Lua for ESP8266) Input Power 5V Compatible for Arduino Compatible with NodeMCU(Lua for ESP8266)
Reference: RBD-0154
Microcontroller: ATmega32u4 Operating Voltage: 5V Input Voltage (Recommended): 7-12V Input Voltage (limits): 6-20V Digital I/O Pins: 20 PWM Channels: 7 Analog Input Channels: 12
Reference: RBD-1812
11 digital input/output pins Interrupt/PWM/I2C/one-wire 1 analog input(3.2V max input) 16M bytes(128M bit) Flash External antenna connector Built-in ceramic antenna New CP2104 USB-TO-UART IC
Reference: RBD-2131
S2 Mini V1.0.0 ESP32-S2 4MB FLASH 2MB PSRAM WIFI Development Board ESP32 S2
Reference: RBD-1407
Flash LED off: 180mA @ 5V. Flash LED on to maximum brightness: 310mA @ 5V. Deep-sleep: 6mA @ 5V min. Modem-sleep: 20mA @ 5V min. Light-sleep: 6.7mA @ 5V min. Programmer: ESP32-CAM-MB MICRO USB Download Module
Reference: RBD-2243
Wearable e-textile technology. Designed with large sew tabs Button Board
Reference: RBD-1684
8 Channel DC 12V Pro mini Relay Shield Module PLC Timer Board for Arduino
Reference: RBD-1138
Board Based On AI-Thinker A9 GPRS Module Supports Firmware Upgrade Via Serial Port Operating Voltage: 5v
Reference: RBD-0009
54 Digital I/O terminals (14 of which have programmable PWM outputs). 16 Analog Inputs. 4 UARTs (hardware serial ports). 16 MHz crystal clock. RoboticsBD Operating voltage: 6 ~ 12v. Dimensions: 110 x 53 x 15 mm.
Reference: RBD-2266
Versatile and powerful development board for IoT and embedded systems projects. USB Type-C port for reversible plug orientation and easy connection to computer or other devices. Built-in Wi-Fi and Bluetooth module for wireless connectivity. Arduino IDE compatibility for easy code writing and uploading. Suitable for a wide range of applications, including...
Reference: RBD-1131
Up to 480 Mbps data transfer rate. USB Type: Type-A to Mini-B Weight: 15 gm Length: 30 cm Exclusively designed for Arduino boards.
Reference: RBD-1130
Fully compatible with the PC. Moulded strain relief and PVC over moulding to ensure a lifetime of error-free data transmissions. Aluminium under mould shield helps meet FCC requirements on KMI/RFI interference. Foil and braid shield complies with fully rated cable specifications reducing EMI/FRI interference.
Reference: RBD-2270
Powerful and versatile ESP32 SoC with WiFi and Bluetooth connectivity 4MB of flash memory and 520KB of SRAM for storing firmware and data Compatible with the Arduino development environment for easy programming Input/output pins for connecting to sensors, actuators, and other peripherals Can be programmed using MicroPython, a high-level programming...
Reference: RBD-1875
Fully compatible with the PC. Moulded strain relief and PVC over moulding to ensure a lifetime of error-free data transmissions. Aluminium under mould shield helps meet FCC requirements on KMI/RFI interference. Foil and braid shield complies with fully rated cable specifications reducing EMI/FRI interference.
Reference: RBD-2271
Wide compatibility with ESP32-DevKitC(30P) series boards Safe and reliable with stable power and signal transmission Extended GVS interface for easy connection to various electronic modules and sensors JUMP interface for easy reuse of all pins, making it ideal for DIY projects Versatile and reliable option suitable for a wide range of projects
Reference: RBD-0987
Compatible with Arduino NANO All digital and analog pins breakout Compact size; External power supply current support Leads all pins out, convenient for wiring and doing experiments.
Reference: RBD-0838
ATMEGA32U4 running in 5V / 16MHz Support Arduino IDE V1.0.1 Micro USB interface programming on the board Four 10-bit ADC pin 12 digital I / O (5 PWM capability) Rx and Tx hardware serial connection. RoboticsBD
Reference: RBD-0658
Standard interface layout, compatible with a variety of Arduinos such as the Pro Mini Original FTDI FT232 chip, stable performance USB power has current protection, using 500MA self-restore fuse RXD/TXD transceiver communication indicator With power, sending, receiving indicator, working status LED indicators Mini USB Port Connection Support 3.3V, 5V...
Reference: RBD-0694
Power input: 4.5V ~ 9V (10VMAX), USB-powered Transfer rate: 110-460800bps Support UART / GPIO data communication interface Support Smart Link Smart Networking Working temperature: -40°C ~ + 125°C Drive Type: Dual high-power H-bridge Don’t need to download resetting A great set of tools to develop ESP8266 Flash size: 4MByte Lowest cost WI-FI Note: The...
Reference: RBD-1806
Based on ESP32 240MHz Xtensa dual-core 32-bit microprocessor Operating Voltage: 2.7V – 4.2V Working Current: 60mA Battery Charging Current: 500mA
Reference: RBD-2267
Integrated Wi-Fi and Bluetooth connectivity make this board a great choice for IoT projects and robotics. The ESP32 chip on the board is a dual-core microcontroller that operates at up to 240 MHz, providing ample processing power for complex projects. With 520 KB of SRAM and 4 MB of flash memory, the board has plenty of memory for storing and running...
Reference: RBD-1218
Model No.:NX8048T050 Display Type:011R(R:Resitive Touchscreen) Operating Voltage (VDC):4.75 ~ 7 Max. Operating Current (mA):410 Touch Type: Resistive Colors:65K (65536)
Reference: RBD-1603
USB-TTL converter. Logic Level: 5V. Operating Supply Voltage: 5V. Digital I/O Pins: 14. Analog I/O Pins: 6.
Reference: RBD-1133
Compatible with NUCLEO-F411RE, onboard Cortex-M4 microcontroller STM32F411RET6 Arduino connectivity support, easy to connect with various Arduino shields and access the massive Arduino resources ST Morpho headers provide full access to all STM32 I/Os, easy for peripheral expansion Supports mbed, build prototype quickly by mbed SDK and online tools...
Reference: RBD-0368
Thickness: 0.4mm Trigger Force: 20g, triggered (default resistance<200kΩ) Pressure Measuring Range: 20g~6kg Static Pressure & Dynamic Pressure Measurement (within the frequency of 10Hz) Initial Resistance: >10MΩ Activation Time: <0.01S Operating Temperature: -40°C~+85°C Lifespan: >1million times Hysteresis: +10%,(RF+ -RF-)/FR+,1000g...
Reference: RBD-0104
Chip built-in 16bit AD converter, 16-bit data output Driver Chip: MPU6050 Operating Voltage: 3-5V DC Communication: I2C/IIC Protocol Gyro Range: ± 250, 500, 1000, 2000 °/s Accelerometer Range: ± 2 ± 4 ± 8 ± 16 g
Reference: RBD-0241
Calibrated directly in Degree Celsius (Centigrade) Linear at 10.0 mV/°C scale factor 0.5°C accuracy guarantee-able (at a25°C) Suitable for remote applications Low cost due to wafer-level trimming Operates from 4 to 30 volts Less than 60 mA current drain Low self-heating, 0.08°C in still air Non-linearity only 0.25°C typical LM35 sensors available in...
Reference: RBD-0569
Acceleration, Gyroscope, and Magnetometer Power Supply: DC3.3V-5V Chip: MPU9250 Size: 22 mm x 17 mm. Gyro range : ± 250 500 1000 2000 ° / s Acceleration range: ± 2 ± 4 ± 8 ± 16g Magnetic field range: ± 4800uT 9 DOF modules
Reference: RBD-0690
The main chip: ISD1820. Operating Voltage: DC 3V-5V. Loudspeaker: 8Ω, 0.5W. An easy to use 10 seconds of voice recording. High-quality, natural voice restored. Can be used as a propaganda module. With looping, jog playback, single-pass play function.
Reference: RBD-1552
Working Frequency: 868 MHz Distance: 8000m RF IC: SX1276