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Development board based on the R7FA4M1AB3CFM microcontroller and compatible with Arduino UNO R4 Minima. Waveshare R7FA4 PLUS A
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Based on R7FA4M1AB3CFM, Compatible with Arduino UNO R4 Minima
Model | ![]() |
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Microcontroller | R7FA4 (32-bit ARM Cortex-M4) | R7FA4 (32-bit ARM Cortex-M4) | ESP32-S3R8 (Dual-core 32-bit Xtensa LX7) |
ESP32-S3FN8 (Dual-core 32-bit Xtensa LX7) | |||
Clock Frequency | R7FA4: 48MHz | R7FA4: 48MHz | ESP32-S3R8: 240MHz |
ESP32-S3FN8: 240MHz | |||
Storage | R7FA4: 256kB Flash, 32kB RAM | R7FA4: 256kB Flash, 32kB RAM | ESP32-S3R8: 384kB ROM, 512kB RAM, 16MB Flash, 8MB PSRAM |
ESP32-S3FN8: 384kB ROM, 512kB RAM, 8MB Flash | |||
Wireless communication | None | 2.4GHz WiFi + Bluetooth LE | |
Operating voltage | Options for 5V/3.3V, support more shields | 3.3V | |
Power input | 6~24V | 6~21V | |
Reset button | Lateral, easier to use when connecting with shield | Vertical | |
IO pin Output current | 8mA | 40mA | |
Digital pins | 14 | 14 | |
Analog pins | 6 | 8 | |
DAC | 2 | None | |
PWM | 6 | 5 | |
UART | 1 | 2 | |
I2C | 1 | 1 | |
SPI | 1 | 1 | |
CAN | 1 | None | |
DC jack | Low profile, shields won't be blocked anymore while connecting | None | |
power output header | Provides 5V OR 3.3V power output and common-grounding with other boards | None | |
5V power output | Up to 2000mA Max, features higher driving capability | 1000mA Max | |
experimental board | Support, solder pad is provided for DIY interfaces to connect with experimental board | Support |
Connecting With Sorts Of Sensors
Connecting With 2.8inch TFT Touch Shield
* for reference only, please refer to the Package Content for detailed part list
Data sheet
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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Development board based on the R7FA4M1AB3CFM microcontroller and compatible with Arduino UNO R4 Minima. Waveshare R7FA4 PLUS A