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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-0761
Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical
Reference: RBD-0768
Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent
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.
Reference: RBD-0755
Size: 5mm Color: Green Head Shape: Round Lens Appearance: Transparent
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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.
| 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
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
Reference: RBD-0022
Affordable Price Operating Voltage: 5 V Sonar Sensing Range: 2-400 cm Max. Sensing Range: 450 cm Frequency: 40 kHz
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-0323
Microcontroller ATmega328 (SMD) – Interface CH340G Operating Voltage: 5V Input Voltage (recommended): 7-12V Digital I / O Pins 14 (of which 6 provide PWM output) Analog Input Pins: 6
Reference: RBD-1820
ESP-32S ESP-WROOM-32 Development Board 38P Bluetooth and WIFI Dual Core CPU This is 38 Pin Version USB Driver : CP2102x
Reference: RBD-1397
Programmer: CH340 Operating Voltage 5V Input Voltage (recommended) 7-12V Input Voltage (limits) 6-20V Digital I/O Pins 54 (of which 15 provide PWM output) Analog Input Pins 16 DC Current per I/O Pin 40 mA DC Current for 3.3V Pin 50 mA Flash Memory 256 KB of which 8 KB used by bootloader
Reference: RBD-1602
The OTA WeMos D1 CH340 WiFi Development Board ESP8266 ESP-12F is a more Powerful Arduino with WIFI support. This development platform Espressif based on the ESP-8266 is the pins of the Arduino Uno almost compatible and can even be used as some shield modules designed for the classic Arduino Uno. *No Cable
Reference: RBD-1110
Supports a wide range of ATMEL AVR microcontroller. Works with AVR Studio or WINAVR(GCC) Works with ATMEL AVR Studio 4.13
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-1684
Pro Mini PLC Relay Board DC 12V 8 Channel Relay Shield Module Delay Timer Switch Board for Arduino
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-0576
Chipboard STM32F103C8T6 On board, SWIM interface and reset button Micro USB line or the 2.54 pin to link to the power with the input voltage 4.5V-15V. Power light and the Demo indicator light Leads all the pins and has detailed label for the Pins. Support SWIM debug mode
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: 1812
WeMos D1 mini Pro – ESP8266 based WiFi Module D1 MINI-PRO D1 Mini Pro Board with 16 MB flash memory and ESP8266 chipset. The board can be programmed with Arduino IDE, has the CP2104 USB chipset and allows easy and fast creation of IoT devices.Technical data • 11 digital input pins• all pins have interrupts• PWM/I2C & One-Wire Support• 1 Analog input...
Reference: RBD-1217
Nextion is a seamless Human Machine Interface (HMI) solution. Nextion provides a control and visualization interface between a human and a process, machine, application or appliance. Nextion is mainly applied to Internet of thing (IoT) or consumer electronics field.
Reference: RBD-0682
Microcontroller: ATmega168 or ATmega328V Operating Voltage: 2.7-5.5 V Digital I/O Pins: 14 PWM Channels: 6 Analog Input Channels: 6 DC Current per I/O Pin: 40 mA Board will run from 2V to 5V. The latest version of the LilyPad supports automatic reset for even easier programming. The back side of the LilyPad is now completely flat!
Reference: RBD-0009
Brand: RoboticsBD
Arduino Mega in Bangladesh 54 Digital I/O terminals (14 of which have programmable PWM outputs). 16 Analog Inputs. 4 UARTs (hardware serial ports). 16 MHz crystal clock. Operating voltage: 6 ~ 12v. Dimensions: 110 x 53 x 15 mm.
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-1527
Based on ATmega32 8 Bit microcontroller USB external programmer Included Datasheet, Manual, Software & Sample codes All Port pins pins available for peripheral interfacing
Reference: RBD-1138
Board Based On AI-Thinker A9 GPRS Module Supports Firmware Upgrade Via Serial Port Operating Voltage: 5v
Reference: 1809
A very small Arduino with USB that is very suitable for smaller applications! The nice thing is that the ATtiny167 can be programmed without needing another Arduino or a programmer. This is because USB software runs on the ATtiny167 itself.This version has more storage, is faster (16MHz instead of 8MHz), and has more pins compared to the normal...
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
Reference: RBD-1402
The perfect solution for breaking out the pins from Lua V3 Nodemcu. Lead-out all the IO ports of the ESP-12E development board Lead out the pins of 5V and 3.3V power supply Convenient to connect with peripheral modules Onboard 5V / 1A DC-DC step-down converter circuit Onboard power indicator With DC power jack 6-24V.
Reference: RBD-106
Description: Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements theProcessing/Wiring language.
Reference: RBD-0155
Brand: SparkFun Electronics
Microcontroller: ATmega328 Circuit Operating Voltage: 5V Clock frequency: 16MHz. Digital I/O Pins: 14 8 analog input port: A0 ~ A7. A pair of TTL level serial port transceiver : RX / TX. 6 PWM port: D3, D5, D6, D9, D10, D11. Support serial download.
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-1216
14-/20-pin DIP (N) Socket 20 pin LaunchPad standard leveraging the BoosterPack ecosystem On-Board EZ-FET emulator featuring EnergyTrace™ technology Supports MSP430G2xx2, MSP430G2xx3, and MSP430F20xx devices in PDIP14 or PDIP20 packages 1 user buttons and 3 LEDs for user interaction
Reference: RBD-1761
Cable For Arduino UNO/MEGA (USB A to B)-3.2 Feet/1Meter Length: 3.2 Feet/1Meter Product Details Product Type: USB Cable for Arduino Mega or Uno, Printer, scanner, and any other peripherals to a computer Used for: data transfer from computer to any other devices Colour: blue, transparent Data transfer: high speed and error-free Connector type: A to B...
Reference: RBD-286
3D Printed Arduino Uno R3 Bumper or base. Note: Arduino Uno is not included
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-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-1544
AT89S52 development board zero-based entry AT89S51 learning board 51 microcontroller development board experiment board
Reference: RBD-0492
Proximity-sensing / Diffuse Type Voltage: DC 6-36V Current: 300mA Sensory Distance: 5mm
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-1055
Length: 5″. Pitch: 4.5″. Weight: 27 gm. Shaft Diameter: 5mm. Total length: 5 inch / 125 mm. Material: Poly-Carbonate.
Reference: RBD-1348
Easy to install. Automatic, convenient, safe and practical. It has the function of power and detection indication. The motion sensor can identify day and night automatically.
