⚖ Comparatif : Arduino Leonardo — Fiche carte vs LilyPad Arduino
Comparatif des caractéristiques techniques déclarées : Arduino Leonardo — Fiche carte et LilyPad Arduino (9 caractéristiques). Voir la fiche complète : Arduino Leonardo — Fiche carte · LilyPad Arduino.
| Caractéristiques | Arduino Leonardo — Fiche carte | LilyPad Arduino |
|---|---|---|
mcu | Atmel/Microchip ATmega32U4 (AVR, 8-bit RISC, modified Harvard architecture — see AVR family article); datasheet via Microchip product page. | — |
cpu | single-core AVR RISC, 16 MHz crystal oscillator (build.f_cpu=16000000L). | — |
gpu | none. | — |
memory | Flash 32 KB (4 KB used by the bootloader → 28,672 bytes available for sketches, upload.maximum_size=28672 in boards.txt); SRAM 2.5 KB (2560 B); EEPROM 1 KB. | — |
usb | native full-speed USB 2.0 device on the ATmega32U4 (no USB-serial chip). Enumerates as CDC serial by default (VID 0x2341, PID 0x8036; bootloader PID 0x0036; legacy VID 0x2A03 also present) and can present HID keyboard/mouse/joystick (boards.txt, store FAQ). Connector: micro-USB. | — |
gpio | 20 digital I/O pins @ 5 V, of which 7 PWM (pins 3, 5, 6, 9, 10, 11, 13 — 8-bit PWM via analogWrite) and 12 analog inputs A0–A11 (10-bit ADC; A6–A11 are multiplexed on digital pins 4, 6, 8, 9, 10, 12). Internal pull-ups 20–50 kΩ. Built-in LED on pin 13. - UART: TTL serial on pins 0 (RX) / 1 (TX) via the Serial1 class — the Serial class on Leonardo means USB (CDC), unlike the Uno (store FAQ). - I2C/TWI: pins 2 (SDA), 3 (SCL), Wire library. - SPI: only on the 6-pin ICSP header — not routed to the digital header; shields using SPI without the ICSP connector will not work (store FAQ). - External interrupts: pins 3 (int0), 2 (int1), 0 (int2), 1 (int3), 7 (int4). - No DAC. Pin↔port mapping: ATmega32u4 pin mapping. | — |
power | USB or external via barrel jack (2.1 mm, center-positive) or Vin/GND header; auto source selection. Input voltage recommended 7–12 V, limits 6–20 V; 5 V rail from onboard regulator; 3V3 pin max 50 mA; USB protected by a resettable polyfuse (~500 mA trip). A barrel-plug 9 V battery solution is explicitly advertised (docs features). | 2.7–5.5 V to the +/− tabs (Main); 3.7 V LiPo on JST with MCP73831 charge controller (Simple/SimpleSnap); FTDI-compatible USB-serial "USBSerial Light" adapter for programming. Never exceed 5.5 V or reverse polarity — official warning: "you'll kill it." LilyPad Arduino USB — ATmega32U4, 8 MHz, 3.3 V logic ( |
per_pin_dc_current | store says 40 mA per I/O pin; the docs-content tech-specs.yml says 10 mA. | — |
mechanicals | 68.6 × 53.3 mm, 20 g; USB connector and power jack extend beyond the PCB; note the non-standard 160 mil spacing between digital pins 7 and 8 (store FAQ). | — |