| Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More |
|---|---|---|---|---|---|
| Price /Unit | $22.81 | $22.35 | $21.65 | $20.72 | Contact US |
M5Stack Paper S3 E-Paper Display Touchable Low Power Consumption 4.7-inch E-ink Display Development Kit ESP32S3
$87.42
LILYGO Grey Shell Version T-Display-S3 1.9-inch LCD Display Development Board WiFi Bluetooth5.0 Wireless Module for Arduino
$32.47
Sketchboard Mechanical Arm Plotter Robot Arm Students Programming Learning DIY Kit for Arduino
$44.05
Arduino Leonardo ATmega32u4 16 MHz Microcontroller Board
Descriptions:
The Arduino Leonardo is a microcontroller board based on the ATmega32u4 (datasheet). 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 needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
The Leonardo 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; these are detailed on the getting started page.
Features:
- 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
- DC Current per I/O Pin 40 mA
- DC Current for 3.3V Pin 50 mA
- Flash Memory 32 KB (ATmega32u4) of which 4 KB used by bootloader
- SRAM 2.5 KB (ATmega32u4)
- EEPROM 1 KB (ATmega32u4)
- Clock Speed 16 MHz
