sera_nx040

Sera NX040 Firmware

Sera™ NX040 DVK (453-00174-k1)

Description Ezurio’s Sera NX040 development kits provide a platform for rapid prototyping of UWB ranging applications based on Sera NX040 modules. The kits provide easy-to-use access to various hardware interfaces including mikroBUS and QWIIC headers offering compatibility with hundreds of peripheral boards. These DVKs are the perfect platform to evaluate Bluetooth Low Energy and UWB ranging features. Please visit the product page on ezurio.com for more details. Key Specs Internal Flash 512 kB Internal RAM 128 kB SPI Flash (on-module) 1024 kB Default REPL Port UART1 Python Heap Size ~48 kB Filesystem Size 448 kB External Links Sera NX040 Datasheet Sera NX040 DVK User Guide Sera Nx040 Software User Guide

Supported Hardware Variants

453-00174-K1	Development Kit, Module, Sera NX040, MHF4L
453-00175-K1	Development Kit, Module, Sera NX040, Trace Antenna

Pinout Diagram 🔗

NOTE: LED1 is a WS2812 compatible addressable RGB LED driven by GPIO6. The canvas.LEDStrip class can be used to control this LED.

Click Pinout Table 🔗

Pin	Canvas Pin Strings
GPIO_7	BUTTON

DVK Pinout Table 🔗

Pin	Canvas Pin Strings
UART1_TX	MB_TX
UART1_RX	MB_RX
I2C_SDA	SDA,MB_SDA
I2C_SCL	SCL,MB_SCL
GPIO_8	GPIO8,MB_RST
GPIO_2	GPIO2,MB_INT
GPIO_3	GPIO3,MB_PWM
GPIO_1	GPIO1,MB_AN
SPI_MOSI_EXT	SPI_MOSI,MB_MOSI
SPI_MISO_EXT	SPI_MISO,MB_MISO
SPI_CLK_EXT	SPI_CLK,MB_SCK
GPIO_7	GPIO7
NFC_2	NFC2
NFC_1	NFC1
GPIO_4	GPIO4
GPIO_5	GPIO5
GPIO_6	GPIO6
SPI_CS_EXT	SPI_CS,MB_CS

Tag Pinout Table 🔗

Pin	Canvas Pin Strings
GPIO_8	LED5
GPIO_2	INT1
GPIO_3	LED4
GPIO_1	LED3
GPIO_7	BUTTON
GPIO_4	LED2
GPIO_5	INT2
GPIO_6	LED1

Click Peripheral/Bus Table 🔗

Peripheral/Bus	Canvas Peripheral/Bus Strings
I2C	i2c0
SPI	spi1
SPI	spi2
SPI	spi3

DVK Peripheral/Bus Table 🔗

Peripheral/Bus	Canvas Peripheral/Bus Strings
I2C	i2c0
SPI	spi1
SPI	spi2
SPI	spi3

Tag Peripheral/Bus Table 🔗

Peripheral/Bus	Canvas Peripheral/Bus Strings
I2C	i2c0
SPI	spi1
SPI	spi2

Canvas Features 🔗

	Bootloader			OTA Update			RTC
	SPI			ADC			PWM
	I2C			GPIO			UART
	JSON			CBOR			NFC Tag
	RE			Floating Point			Watchdog Timer
	BLE Advertiser			BLE Scanner			BLE Connection
	.zip App Update			mbedTLS

Hardware-Specific Features 🔗

	USB			RTOS Shell			Encrypted FS
	Modem			Ethernet			Wi-Fi Station
	Wi-Fi AP			Net Client			Net Server
	UWB Ranging			LED Strip Driver

Design Guidelines 🔗

IMPORTANT

• Pin P1.03 is used by the mcuboot bootloader to enter recovery mode when logic low at boot.
• The SPI flash included in the Sera NX040 module contains an NXP SR040 firmware image. This firmware image must be present to operate the UWB radio so performing a full erase of the SPI flash is not recommended.

Build Variants 🔗

Firmware versions containing a.b.99 are development builds and may not be suitable for production use.

dvk	Default DVK build
tag	Targets the Sera NX040 tag development board
click	Targets the Sera NX040 click board

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