⚖ Comparatif : Arduino Esplora — Fiche de carte vs Arduino GIGA R1
Comparatif des caractéristiques techniques déclarées : Arduino Esplora — Fiche de carte et Arduino GIGA R1 (16 caractéristiques). Voir la fiche complète : Arduino Esplora — Fiche de carte · Arduino GIGA R1.
| Caractéristiques | Arduino Esplora — Fiche de carte | Arduino GIGA R1 |
|---|---|---|
mcu | Atmel/Microchip ATmega32u4 — 8-bit AVR RISC, single core, 16 MHz crystal (build.f_cpu=16000000L), with integrated USB 2.0 full-speed device transceiver (no USB-serial chip) (boards.txt, Microchip, datasheet PDF). | — |
gpu | none. | none (LCD-TFT display controller class peripheral only; the GIGA Display Shield drives a 480×800 RGB panel via the board's display connector — docs.arduino.cc/hardware/giga-r1-wifi). |
memory | Flash 32 KB (4 KB bootloader → 28,672 B sketch space, upload.maximum_size=28672); SRAM 2.5 KB (2560 B, upload.maximum_data_size=2560); EEPROM 1 KB (EEPROM library). | — |
usb | micro-USB connector, native CDC virtual COM port; can also enumerate as keyboard/mouse (HID). IDs: VID 0x2341, PID 0x803C (sketch) / 0x003C (bootloader); legacy VID 0x2A03 also matched (boards.txt). | — |
operating_voltage | 5 V logic (tech specs table, retired page). | — |
power | the official page describes powering the board by connecting it to a computer with a USB cable; a resettable polyfuse (~500 mA) protects the host USB port (retired page, "USB Overcurrent Protection"). No barrel jack or Vin/GND power header is documented anywhere on the official page. | USB-C or DC via VIN, accepted range 6–24 V (store description: "can handle a range of 6 to 24 volts"). |
onboard_i_o_the_point_of_the_board | — pin map from Esplora.cpp: - Analog joystick (X, Y axes + center push-button). - 4 push-buttons in a diamond (library names SWITCH_DOWN/LEFT/UP/RIGHT), plus the joystick button. - Linear potentiometer slider near the bottom edge. - Microphone (ambient loudness), light sensor (LDR), temperature sensor (°C/°F via library), 3-axis accelerometer (measures the board's relation to gravity). - Buzzer (square-wave / piezo) on D6 via tone. - Bright RGB LED: red D5, green D10, blue D9 (PWM). - 2 TinkerKit analog inputs + 2 TinkerKit PWM outputs (3-pin connectors for TinkerKit sensor/actuator modules). - TFT display socket for the optional color LCD or other SPI devices (retired page, library properties). - LEDs: ON (green, power), L (yellow, pin 13), RX/TX (yellow, USB activity); reset push-button top-left (retired page). | — |
how_the_sensors_are_wired_critical_for_gpio_planning | — from Esplora.cpp: - A 4-channel analog multiplexer routes 10 sensor channels (4 buttons, slider, light, temperature, microphone, TinkerKit A/B, joystick switch/X/Y — 13 logical channels, MAX_CHANNELS=13) onto one ADC input, A4 (MUX_COM_PIN); the channel is selected by address pins A0, A1, A2, A3 (MUX_ADDR_PINS). - The accelerometer bypasses the mux: X = A5, Y = A11, Z = A6 (zero-g offsets coded as 320/330/310). - Consequence: A0–A6 and A11 are consumed; the only freely documented external outputs are D3 and D11 ("External outputs: D3, D11" comment in Esplora.cpp); D5/D6/D9/D10 and D13 are used by RGB/buzzer/LED. - ADC resolution 10-bit (0–1023); no DAC. UART (TTL Serial1), I2C and SPI exist on the ATmega32u4 but SPI is mainly brought out on the TFT socket; there are no standard Arduino shield headers. | — |
mechanicals | 164.04 × 60 mm, 53 g (max length/width 6.5 × 2.4 in with connectors overhanging); four screw holes (retired page tech specs). | — |
soc | — | STMicroelectronics STM32H747XI, dual-core 32-bit (store product description, st.com product page, both fetched 2026-10-13). |
cpu | — | Arm Cortex-M7 @ up to 480 MHz + Cortex-M4 @ up to 240 MHz; FPU (single/double precision on M7, IEEE-754), DSP instructions, MPU (st.com). |
flash | — | dual-bank up to 2 MB (STM32H747xI, st.com). |
ram | — | up to 1 MB total on-chip: 192 KB TCM RAM, up to 864 KB user SRAM, 4 KB backup SRAM (st.com). |
connectivity | — | Murata LBEE5KL1DX-883 ("1DX") module — Wi-Fi + Bluetooth LE — plus external antenna; ATECC608A secure element (docs.arduino.cc/hardware/giga-r1-wifi, store description). No Ethernet, no cellular. |
gpio | — | 76 GPIO pins total, accessible from underneath the board too; 3.3 V logic (docs hardware page, store description). - Buses: 4 UART, 3 I2C, 2 SPI, 1 FDCAN (store description). - Analog: 3 ADCs and 2 DACs on the SoC (st.com); the 3.5 mm audio jack is wired to DAC0, DAC1 and A7 (store description). - Extra pins: VRTC (RTC backup battery) and OFF (board shutdown) (store description). - Dedicated connectors: USB-C (power/programming/HID), USB-A host (mass storage, HID), 2×5 1.27 mm JTAG, 20-pin Arducam DVP camera, display connector (store description + docs). |
temperature | — | commercial MCU range; board-level operating range not stated on fetched pages. |