Arduino Uno R4 Wi-Fi

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SKU: 005138

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Description
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The Arduino Uno R4 Wi-Fi is a successor to the Uno R3 and remains compatible with Uno R3 shields. The Uno R4 Wi-Fi has a much more powerful Arm Cortex M4 microcontroller, and can be programmed and powered via the USB-C connector. In addition to the Uno R4 Minima version, this Wi-Fi version also has Wi-Fi and BLE, an LED matrix (12x8) and a qwiic I2C connector.

Note: The maximum IO pin current is only 8mA (compared to >20mA for the R3). Many tutorials online with, for example, LEDs use series resistors of 220Ω to get around 15mA. This resistance is therefore too low for the R4, so use at least 470Ω resistors.

See the following page for more information: Wiki

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Tags: Arduino Uno R4 Wi-Fi , ABX00087 , With Bluetooth

Specifications

General
Brand	Arduino
Manufacturer model/SKU	ABX00087
Norm conformity	RoHS CE FCC
Features	Display Microcontroller RTC
General physical appearance
Main color	Blue
Weight [g]	23
Dimension X [mm]	69
Dimension Y [mm]	54
Mounting options	Mounting hole(s)
Form factor	Module (general) Uno layout/shield
Experiment PCB friendly	No
General electrical properties
Minimum supply voltage [V DC]	5 (via USB-C) 6 (via DC-jack or Vin pin)
Maximum supply voltage [V DC]	24 (via DC-jack or Vin pin) 5 (via USB-C)
Minimum IO-pin input voltage [V]	4
Maximum IO-pin input voltage [V]	5.8
IO-pin output voltage [V]	5
Maximum IO-pin source current [mA]	8
Maximum IO-pin sink current [mA]	8
MCU/SoC
Manufacturer	Renesas Electronics
Chip series	RA4M1
Maximum clock frequency [MHz]	48
Number of cores	1
Internal memory
SRAM [KB]	32
PSRAM [MB]	0
Flash memory [MB]	0.256
EEPROM [B]	8192
EEPROM type	Built-in
Communication
Hardware interface(s)	I2C SPI Native USB UART PWM ADC DAC GPIO USB CDC Opamp
Number of IO-pins	22
Maximum available hardware PWM channels	6
Maximum available analog input pins (ADC)	6
Maximum available analog output pins (DAC)	1
Maximum available hardware UART interfaces	1
Maximum available hardware I2C interfaces	2
Maximum available hardware SPI interfaces	1
USB to serial converter	Integrated into microcontroller
Wireless communication
Interface(s)	Wi-Fi Bluetooth
Wi-Fi chip/SoC	ESP32-S3
Wi-Fi frequency [GHz]	2.4
Bluetooth chip/SoC	ESP32-S3
Bluetooth version	5.0
Supported Bluetooth standard(s)	LE
Display
Type	LED Matrix
Number of pixels long side	12
Number of pixels short side	8
Pixel colors	Red
RTC
Back-up battery/capacitor	Optional
Connectors
Power supply connector(s)	Pin header female (2.54mm) USB-C female DC-jack 5.5/2.1mm female
IO-connector(s)	JST-SH (compatible) male Pin header male (2.54mm) Pin header female (2.54mm) USB-C female
Wi-Fi/Bluetooth antenna connector	Built-in antenna
Package contents
Package contents	1x Arduino Uno R4 WiFi 1x Mounting plate