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Reference: RBD-1354
Length: 8 inches/20 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
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: 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-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-1360
PN junction rectifier diode. One direction flow of Current. Used for conversion of AC power to DC. 1N 4007 is electrically compatible with other rectifier diodes Used instead of any of the diode belonging to 1N400X series
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Free Ship Over 5000 BDT
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The Leonardo R3 Board Micro-USB compatible with Arduino is a micro-controller board base on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs); a 16 MHz crystal oscillator, a micro-USB connection, a power jack, an ICSP header, and a reset button.
It contains everything need 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.
The Leonardo R3 Board differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor.
This allows the Leonardo to appear to a connected computer as a mouse and keyboard; in addition to a virtual (CDC) serial / COM port. It also has other implications for the behavior of the board.
Leonardo R3 USB Serial Port has disappeared from IDE
The Arduino Leonardo stands apart from other Arduinos, like the Uno and Mega, as it lacks a built-in USB serial chip. One microcontroller is responsible for both the USB stack and your code. If you upload code without the USB stack, your PC won't recognize the Leonardo. In this case, you can press the reset button to display the serial port on your PC for 3-5 seconds. During this time, you can upload your code.
While Arduino Leonardo is connected to your computer, press its reset button. A COM for Arduino Leonardo appears under the Arduino IDE: Tools > Port: You should upload the code within a few seconds just after you press the reset button while the Leonardo COM is appearing.
The USB stack and your sketch both run on the same microcontroller in this board, which means there's a possibility that your sketch code could interfere with the USB functionality.
Luckily, the upload code (bootloader) resides in a separate memory section, so it remains unaffected by your sketch code's actions.
However, triggering the bootloader requires precise timing during the upload process. Ordinarily, a specific segment of your sketch code that recognizes a 1200 baud connection signals the microcontroller to reset and activate the bootloader. But in your present scenario, this mechanism won't function as expected. Therefore, you'll need to manually reset the board to initiate the bootloader.
Timing is crucial. Resetting the board too early might cause the bootloader to time out before the upload begins. The challenge arises from the fact that when you click the "Upload" button in the Arduino IDE, it first compiles your sketch prior to commencing the upload. Hence, you must wait until the compilation completes before resetting the board.
Follow these steps:
Sketch uses 444 bytes (1%) of program storage space. Maximum is 30720 bytes. Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes. Product Images are shown for illustrative purposes only and may differ from the actual product.
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| General Specification | |
| Model Type | Arduino Leonardo |
| Microcontroller Chip | ATmega32u4 |
| Operating Voltage (VDC) | 5 |
| Input Voltage(Recommended) | 7V-12V |
| Country of Origin/Manufacture | China |
| Analog I/O Pins | 12 |
| Digital I/O Pins | 20 |
| PWM Digital I/O Pins | 7 |
| Clock Speed | 16 MHz |
| Flash Memory | 32 KB |
| SRAM | 2.5 |
| EEPROM | 1 KB |
| Dimensions in mm (LxWxH) | 68x54x20 |
| Weight (gm) | 20 |
| Shipment Weight | 0.022 kg |
| Shipment Dimensions | 10 × 8 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x Arduino Leonardo with Headers (Made in China)
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The latest price of Arduino Leonardo R3 in Bangladesh is BDT 790 You can buy the Arduino Leonardo R3 at best price from our RoboticsBD or visit RoboticsBD Office.
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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. |
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Product Images are shown for illustrative purposes only and may differ from the actual product. |
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Reference: RBD-1821
Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled Arduino-like hardware IO Integrated TR switch, balun, LNA, power amplifier and matching network Integrated PLL, regulators, DCXO and power management units Onboard USB to serial chip to easily program and upload codes from the Arduino IDE Easy to use breadboard friendly form...
Reference: RBD-2242
Wearable e-textile technology. Designed with large sew tabs LED Yellow Color
Reference: RBD-2764
The ESP32-S3-WROOM-1-N16R8 is a versatile Wi-Fi and low-power Bluetooth MCU module, featuring the advanced ESP32-S3 series chip. With its powerful performance, rich peripheral interfaces, and support for popular programming methods, this module offers a wide range of applications in various fields including IoT, AI, and smart devices.
Reference: RBD-2371
Our ESP32 core board is the perfect solution for anyone who wants an easy and convenient way to connect their peripherals. With our board, you'll have everything you need to develop and debug your own applications. The ESP-WROOM-32 module is a leading WiFi + Bluetooth solution that integrates with TSMC's low-power 40nm technology. This means that our...
Reference: RBD-2917
100% Brand new and high quality STM32 Board Model: STM32F103C8T6. Core: ARM 32 Cortex-M3 CPU. Debug mode: SWD. 72MHz work frequency. 64K flash memory, 20K SRAM. RoboticsBD 2.0-3.6V power, I/O.
Reference: RBD-2367
ESP32-S3-WROOM-1-N16R8(16M Flash/8SRAM) Powerful ESP32-S3 chip for enhanced processing capabilities Dual Type-C USB ports for easy connectivity Built-in Wi-Fi and Bluetooth for seamless communication 16MB flash memory for ample storage space 8MB PSRAM for efficient multitasking Micropython support for easy programming Ideal for IoT projects, robotics, and...
Reference: RBD-2652
Firstly, In terms of pins, the D1 Mini and NodeMCU V3 development boards are quite similar. They both break out all ESP8266 ESP-12E/F pins. The NodeMCU V3 board has additional 3V3 and GND pins. Hence, it is more suitable for various connections to devices with an additional button for the flash. A high-quality USB cable is essential for this board to...
Reference: RBD-2268
Features WiFi+Bluetooth connectivity with the ESP-WROOM-32 module Accessible I/O pins via extension headers for easy customization Onboard USB CH340 for convenient programming and debugging 2x keys for reset or user-defined functions ESP32S-DEV development board is a cost-effective solution for a wide range of applications.A high-quality USB cable is...
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-3112
Onboard EP2C5T144 chip EPROM chip configuration using EPCS4, the size of 4Mbit Onboard 50M active patch crystal (Crystal Slaughter halfback) Power supply with a largemouth outlet, single 5V power supply Board has power indicator and resets switch Onboard 3 SMD LED, the LED test can be done an experiment, more experiments using lead to complete
Reference: RBD-2568
The Arduino UNO R4 WiFi merges the RA4M1 microprocessor from Renesas with the ESP32-S3 from Espressif, creating an all-in-one tool for makers with enhanced processing power and a diverse array of new peripherals. With its built-in Wi-Fi® and Bluetooth® capabilities, the UNO R4 WiFi enables makers to venture into boundless creative possibilities....
Reference: RBD-2196
USB Type: Type-A to Type-B Weight: 26 gm. Length: 50 cm Long cable for easy work Fully compatible with the PC. Molded strain relief and PVC over-molding to ensure a lifetime of error-free data transmissions.
Reference: RBD-2499
Brand: Arduino Official
Made in ITALY Powerful and versatile Arduino board based on ESP32-S3 Compatible with Arduino and MicroPython programming Easy to use and ideal for beginners and advanced users alike Perfect for IoT and MicroPython projects
Reference: RBD-2138
Arduino compatibility Full integration USB-TTL converter 32 Mb flash memory Dual microcontrollersA high-quality USB cable is essential for this board to ensure sufficient current supply; otherwise, your board may not be recognized by the Windows Device Manager. Please avoid using mobile phone cables and instead use the recommended cable available here:...
Reference: RBD-1602
Microcontroller: ESP8266EX Operating Voltage: 3.3V Digital I/O Pins: 11 (all I/O pins have interrupt/PWM/I2C/one-wire capability, except for D0) Analog Input Pins: 1 Flash Memory: 4MB On-Board Switching Power Supply: Input Voltage Range: 9V to 12V Output: 5V at 1A Max
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-2238
Wearable e-textile technology. Designed with large sew tabs LED Blue Color
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-2160
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-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-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-2344
Ignite your passion for electronics and programming with the SmartConnect Arduino IOT Learning Pro Kit. This comprehensive kit offers 28 engaging lessons to guide you from beginner to expert. With popular components like the ESP8266 WiFi module and a multifunction expansion board, you'll explore the world of Internet of Things (IOT) projects. From...
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-2484
Brand: Arduino Official
The new Arduino UNO R4 development board comes in two versions: the UNO R4 WiFi and the UNO R4 Minima. It runs on the Renesas RA4M1 (Arm Cortex®-M4) processor with a clock speed of 48MHz, which provides a 3x increase over the UNO R3. In addition to that, the SRAM has been upgraded from 2kB to 32kB and the flash memory has been increased from 32kB to 256kB...
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! RoboticsBD
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-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 The ESP32 CAM does not come pre-assembled with the camera. You'll need to connect the camera ribbon cable to the board, a task which can be...
Reference: RBD-2949
STM32 Mini V2.0 STM32F103RCT6 Part STM32F103RCT6 Manufacturer ST-Microelectronics Core Arm Cortex-M3 Max. Clock Speed 72MHz Package UFQFPN 64 pins Warning: The +5V pins on this board are directly connected to the +5V pin of the USB connector. There is no protection in place. Do not power this board through USB and an external power supply at the same time.
Reference: RBD-3124
The T-A7670E-R2 is a high-performance ESP32-based module designed for a wide range of IoT and embedded applications. This model offers robust connectivity options with integrated LTE and GSM support, making it suitable for various global regions. The module comes equipped with versatile features for seamless integration into advanced projects.
Reference: RBD-1138
Board Based On AI-Thinker A9 GPRS Module Supports Firmware Upgrade Via Serial Port Operating Voltage: 5v
Reference: RBD-1342
For Standard LCD 16x2 with Male Header. Press here For Standard LCD 16x2 with Female Header. Press here For Standard LCD 16x2 with I2C adapter board soldered. Press here. For Standard LCD 16x2 with White Background. Press here. For Standard LCD 16x2 with Blue Background. Press here.
Reference: RBD-0936
High-Quality Pump Operating Voltage: 12VDC Flow Rate: 1100GPH Outlet Diameter 19mm
Reference: RBD-1203
Distance measuring range: 10 cm to 80 cm Output type: Analog voltage Output voltage differential over distance range: 2.05 V (typical) Update period: 38 ± 10 ms
Reference: RBD-1430
Double Pole Double Throw. Main Body: 12 x 12 x 10mm. Lever Length: 11mm.
Reference: RBD-1300
Size: 5mm Color: BLUE Head Shape: Round Lens Appearance: Transparent
Reference: RBD-2053
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-0659
Operating voltage: 4.5V to 5.0 V Supply current: 150 mA Output format: 8 Digital voltages. Optimal sensing distance: 3 mm. Maximum recommended sensing distance: 6 mm Uses 8 sensors for best resolution Comes with easy to use digital outputs that can be connected directly to microcontrollers Sample Programming Code is available. RoboticsBD
Reference: 0031
3 Types Available (Please select from option) 1. Male to Male 2. Male to Female 3. Female-Female
Reference: 0245
Choose your desire Resistor value from below:
Reference: RBD-0108
Works with standard (dual 5/3.3V) and 3.3V-only (for example, Pro Arduino) boards. Complies with USB Specification Revision 2.0 (Full-Speed 12Mbps Peripheral, Full-/Low-Speed 12Mbps/1.5Mbps Host) Supports HID devices, such as keyboards, mice, joysticks, etc. Compatible with Mass storage devices, such as USB sticks, memory card readers, external hard...
Reference: RBD-0742
Input voltage(V): 6 – 27. Maximum current(A): 43. Input level(V): 3.3 – 5. Duty cycle: 0 – 100%. Path resistance: 16 mΩ at 25°C. Low quiescent current: 7 µA at 25°C.
Reference: RBD-0032
USB Driver: CH340 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. Please select...
