AMB21 / AMB22 Arduino

AMB21 / AMB22 EVB

AMB21 / AMB22 (Ameba RTL8722DM / RTL8722CSM)

MCU Part Number: RTL8722DM 32-bit KM4 (Arm Cortex-M33 compatible) 32-bit KM0 (Arm Cortex-M23 compatible) Memory 512KB SRAM 4MB PSRAM 2MB Flash Key Features Integrated 802.11 a/n Wi-Fi SoC Trustzone-M Security Hardware SSL Engine Root Trust Secure Boot USB Host/Device SD Host BLE5.0 Codec LCDC Key Matrix Other Features 1 PCM interface 4 UART interfaces 1 I2S Interface 2 I2C interfaces 7 ADC interfaces 17 PWM interfaces Max 54 GPIO

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Pinmap / Layout

Please refer to the following figure and table for the pinmap/layout diagram and functions.

	GPIO Pin	GPIO INT	ADC	PWM	UART	SPI	I2C	IR	SWD
0	PB2	✓	A5		SERIAL2_RX (b)
1	PB1	✓	A4		SERIAL2_TX (b)
2	PB3	✓	A6						SWD_CLK (b)
3	PB31	✓						IR_TX (c)
4	PB30	✓
5	PB28	✓
6	PB29	✓						IR_RX (c)
7	NC	✓
8	PB22	✓		✓				IR_RX (a)
9	PB23	✓		✓				IR_TX (a)
10	PB21	✓		✓	SERIAL1_RTS (b)	SPI_SS
11	PB18	✓		✓	SERIAL1_RX (b)	SPI_MOSI			SWD_CLK (a)
12	PB19	✓		✓	SERIAL1_TX (b)	SPI_MISO			SWD_DATA
13	PB20	✓		✓	SERIAL1_CTS (b)	SPI_SCLK
14	PA7	✓			LOG_TX
15	PA8	✓			LOG_RX
16	PA25	✓		✓	SERIAL2_RX (a)		I2C_SCL (a)	IR_TX (b)
17	PA26	✓		✓	SERIAL2_TX (a)		I2C_SDA (a)	IR_RX (b)
18	PB7	✓	A3	✓		SPI1_SS
19	PB6	✓	A2			SPI1_SCLK	I2C_SDA (b)
20	PB5	✓	A1	✓		SPI1_MISO	I2C_SCL (b)
21	PB4	✓	A0	✓		SPI1_MOSI
22	PA28	✓
23	PA24	✓		✓	SERIAL1_CTS (a)		I2C1_SDA
24	PA23	✓		✓	SERIAL1_RTS (a)		I2C1_SCL
25	PA22	✓			SERIAL1_RX (a)
26	PA21	✓			SERIAL1_TX (a)
27	PA20	✓
28	PA19	✓

Example Guides

• Basic Examples

  • Arduino-build-in example AMB21 / AMB22

• BLE Examples

  • BLE Battery Client

  • BLE Battery Service

  • BLE Beacon

  • BLE Scan

  • BLE UART Client

  • BLE UART Service

  • DHT over BLE UART

  • Door Unlock Over BLE Uart

  • HID Gamepad

  • HID Keyboard

  • HID Mouse

  • PWM over BLE UART

  • V7RC Car

  • WiFi Config Service

• Flash Memory Examples

  • Read Write Stream

  • Read Write Word

• GPIO Examples

  • Interrupt Control LED

  • Measure Distance HCSR04 Ultrasonic

  • Measure Temperature and Humidity DHT Tester

• Multimedia Examples

  • Audio

    • Basic Input Output

    • FFT

    • Input FFT

    • Output Sine Wave

API documents

• Arduino Program Language API

• Analog API

• AudioCodec API

• BLE API

• EPDIF API

• FatfsSDcard API

• FlashMemory API

• GPIO API

• Gtimer API

• Http API

• IRDevice API

• MDNS API

• MQTTClient API

• NTPClient API

• OTA API

• PowerSave API

• RTC API

• SoftwareSerial API

• SPI API

• SYS API

• USB API

• WDT API

• WiFi API

• Wire API

• WS2812B API

SDK Source Code

ameba-arduino-d