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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: 1353
Length: 12.5 inches/30 CM (Long) Material: Copper Plated Pin Spacing: 2.54mm.
Store Pickup Available!
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-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-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-2651
D1 Mini board with 4 MB flash memory and ESP8266 chipset. The board can be programmed with Arduino IDE, has the CH340 USB chipset and allows you to create IoT devices quickly and easily.
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-1820
38 Pin version 2.4GHz Dual-Mode WiFi + Bluetooth Development Board, 38PIN Ultra-Low power consumption works perfectly with the IDE
Reference: RBD-0350
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-2551
Supports development boards such as Arduino UNO and Mega2560 for plug-in use without wiring 480X320 resolution, clear display Support 16-bit RGB 65K color display, display rich colors 8-bit parallel bus, faster than serial SPI refresh On-board 5V/3.3V level shifting IC, compatible with 5V/3.3V operating voltage Easy to expand the experiment with SD card...
Reference: RBD-0155
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-2483
Brand: Arduino Official
Arduino Opta, specially designed for PLC engineers, is a secure, easy-to-use micro PLC with industrial IoT capabilities. Opta is equipped with frequently used networks and protocols in multiple industries, and supports both Arduino sketch and standard PLC languages, including LD (Ladder Logic Diagram) and FBD (Function Block Diagram). Its powerful...
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-2679
STM32F103C8T6 ARM Development Board Module with Type-C Interface and Enhanced Memory Enhance your embedded system projects with the STM32F103C8T6 ARM development board module. Featuring a Type-C interface for easy connectivity, this module offers seamless one-click download capability. With an upgraded BOOT switch, you can easily perform upgrades without...
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...
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-0106
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-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-2242
Wearable e-textile technology. Designed with large sew tabs LED Yellow Color
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-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-2239
Wearable e-textile technology. Designed with large sew tabs LED Red Color
Reference: RBD-2569
Introducing the Arduino UNO R4 Minima! This board boasts the RA4M1 microprocessor from Renesas, delivering increased processing power, expanded memory, and additional peripherals. And the best part? It stays true to the reliable UNO form factor and operates at a practical 5 V voltage. Brace yourself for an upgrade like no other with the Arduino UNO R4...
Reference: RBD-0136
Microcontroller: AT91SAM3X8E Operating Voltage: 3.3V Input Voltage (recommended): 7-12V Input Voltage (limits): 6-16V Digital I/O Pins: 54 (of which 12 provide PWM output) Analog Input Pins: 12 Analog Outputs Pins: 2 (DAC) A 32-bit core, that allows operations on 4 bytes wide data within a single CPU clock. CPU clock at 84Mhz 96KBytes of SRAM
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-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-1827
Altera Cyclone IV EP4CE6 FPGA Development Board NIOSII EP4CE PCB USB Blaster Jtag AS Programmer
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-2164
WeMos D1 R32 Mini ESP32 WIFI Bluetooth Development Board CH340 chip for compatibility with Arduino UNO R3 Supports WIFI and Bluetooth connectivity Comes with a Type-B/Micro USB adapter
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) RoboticsBD Analog Input Pins: 6 A programming cable is included.
Reference: RBD-1138
Board Based On AI-Thinker A9 GPRS Module Supports Firmware Upgrade Via Serial Port Operating Voltage: 5v
Reference: RBD-2244
Wearable e-textile technology. Designed with large sew tabs Slide Switch
Reference: RBD-2162
USB Type: Type-A to Mini-B Length: 1 meter/ 3.2 Feet Exclusively designed for Arduino boards. Compatible with Arduino Nano Larger Cable
Reference: RBD-1101
Supply voltage:5 V Microcontroller:ATtiny44 Connection port:micro USB
Reference: 0245
Choose your desire Resistor value from below:
Reference: RBD-2640
Connect components on breadboards and PCBs with ease. 20 pre-crimped jumper wires for versatile use. 20cm length for convenient connections. Male-to-female connector design for flexible connections. Colorful for easy identification and organization.
Reference: 1169
Please select your desired models from the list below.
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-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-2097
5V Dc Power Supply Power indicator light The comparator output is light High Sensitivity Sound Microphone Sensor Detection Module Electric condenser microphone
Reference: RBD-0992
Resistance: 10k Ohm Tolerance: 10 % Temperature coefficient: ±100 ppm/ºC Operating temperature range: -55ºC to +125ºC Mounting type: Through-hole
