Feature(may vary by option.)
●KEYESTUDIO Leonardo R3 is fully compatible for the official version, which is a good choice for Arduino project. Note: open the Arduino IDE. Click "Extras" and then select the board that matches your Arduino. If you do not select the correct development board type, compilation transfer will fail. So this is a place that requires special attention.
●I have lost the right to edit the photo. Note that this is a Leonardo, not a micro bit set. Please refer to the description and comments on the picture. KEYESTUDIO Leonardo R3 is fully compatible for the official version, which is a good choice for Arduino project
●Maximum allowed current of 5V digital/analog connection: 40mA and from 3.3V digital/analog connector: 50mA; working voltage: 5V; input voltage (recommended): 7-12V
●Main control chip is ATMEGA 32u4 and adopts the Atmel original from the United States. Download Tutorial: https://fs.keyestudio.com/KS0248
●Has FCC certification and CE certification because they are made of environmentally friendly production technology and materials. Test the function, voltage, current before packaging
[Leonardo R3 atmega32u4]
[Leonardo R3]
Description
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It is our latest open-source controller that features a cool yellow-black design and twenty-three digital I/O ports, seven PWM ports and twelve analogue input ports. |
Main control chip is ATMEGA 32u4 and adopts the ATMEL original of the United States |
Maximum permitted current of 5V digital/analog connection: 40mA and 3.3V digital/analog connection: 50mA; Working Voltage: 5V Input Voltage (Recommended): 7-12 V |
Keystudio Leonardo R3 Board
The Leonardo is different from other Arduino cards with a separate USB serial chip in the fact that the ATmega32u4 has built-in USB communication, so no secondary processor is required.
It is used to emulate a keyboard/mouse/joystick for many projects.
Digital E / A Pins: D0-D13 and A0-A5 (D18-D23); the ICSP pins can be used as digital pins. Analogue inputs: A0-A5, A6-A11, dh D4 (A6), D6 (A7), D8 (A8), D9 (A9), D10 (A10) and D12 (A11) PWM pins: D3, D5, D6, D9, D10, D11 and D13. External interrupts: D3 (Interrupt0); D2 (Interrupt1); D0 (Interrupt2), D1 (Interrupt3), D7 (Interrupt4).Serial communication: D0 (RX) and D1 (TX)
Technical specifications:
Microcontroller: Atmega32u4Operating voltage: 5 V input voltage (recommended): DC7-12VDigital E / Apins: 20 (of which 7 PWM output) PWM Digital I/O pins: 7Analogue input pins: 12DC per E / A pin: 40mADC for 3.3V Pin: 50 mA
Flash memory: 32 KB (ATmega32u4), of which 4 KB used by the bootloader SRAM: 2.5 KB (ATmega32u4); EEPROM: 1 KB (ATmega32u4). Clock rate: 16 MHzLED_BUILTIN: D13
