How to Use UWB Click: Examples, Pinouts, and Specs

Design with UWB Click in Cirkit Designer

Introduction

The UWB Click (Manufacturer Part ID: MIKROE-4199) is a compact module designed by Mikroe for ultra-wideband (UWB) communication. It enables precise ranging and localization capabilities, making it ideal for applications requiring high accuracy and low latency. UWB Click is widely used in IoT, smart home devices, asset tracking, and industrial automation. Its ability to measure distances with centimeter-level precision makes it a powerful tool for real-time location systems (RTLS).

Explore Projects Built with UWB Click

Pushbutton-Controlled Interface with 40-Pin Connector and UBS Power Supply

This circuit consists of a 40-pin connector interfacing with four pushbuttons and a UBS power supply. The pushbuttons are used as inputs to the connector, which then relays the signals to other components or systems. The UBS power supply provides the necessary 24V power to the pushbuttons and the common ground for the circuit.

Open Project in Cirkit Designer

Arduino UNO Controlled RGB LED Matrix with Bluetooth Connectivity and Audio Output

This is an interactive display and communication circuit. It uses an Arduino UNO to drive multiple WS2812 RGB LED matrices for visual output, interfaces with a DS3231 RTC for time-related functions, and communicates wirelessly via an HC-05 Bluetooth module. Additionally, it features audio output capabilities through a speaker connected to a PAM8403 audio amplifier.

Open Project in Cirkit Designer

ESP32-S3 Based Vibration Detection System with TFT Display and Power Backup

This circuit features an ESP32-S3 microcontroller connected to various peripherals including an ADXL355 accelerometer, an SW-420 vibration sensor, a buzzer module, and an ILI9341 TFT display. The ESP32-S3 manages sensor inputs and provides output to the display and buzzer. Power management is handled by a 12V to 5V step-down converter, and a UPS ensures uninterrupted power supply, with a rocker switch to control the power flow.

Open Project in Cirkit Designer

Wi-Fi Enabled UV Monitoring System with OLED Display

This circuit features a PicoW microcontroller interfacing with a 0.96" OLED display, an ML8511 UV sensor, and a blue LED. The PicoW reads UV sensor data and can display information on the OLED while controlling the LED for visual feedback.

Open Project in Cirkit Designer

Technical Specifications

The following table outlines the key technical details of the UWB Click module:

Parameter	Value
Communication Protocol	SPI (Serial Peripheral Interface)
Operating Voltage	3.3V
Power Consumption	Low power consumption in idle mode; configurable active mode power usage
Frequency Range	3.1 GHz to 10.6 GHz
Ranging Accuracy	±10 cm
Data Rate	Up to 6.8 Mbps
Operating Temperature	-40°C to +85°C
Dimensions	25.4 mm x 25.4 mm

Pin Configuration and Descriptions

The UWB Click module uses a standard mikroBUS™ socket for easy integration. Below is the pinout description:

Pin	Name	Type	Description
1	AN	Input	General-purpose analog input
2	RST	Input	Reset pin to restart the module
3	CS	Input	SPI Chip Select
4	SCK	Input	SPI Clock
5	MISO	Output	SPI Master-In-Slave-Out
6	MOSI	Input	SPI Master-Out-Slave-In
7	PWM	Output	General-purpose PWM output
8	INT	Output	Interrupt pin for event signaling
9	GND	Ground	Ground connection
10	3.3V	Power Supply	3.3V power supply input

Usage Instructions

How to Use the UWB Click in a Circuit

Hardware Setup:
- Connect the UWB Click module to a mikroBUS™ socket on a compatible development board.
- Ensure the board provides a stable 3.3V power supply.
- Use SPI-compatible pins (CS, SCK, MISO, MOSI) for communication with the host microcontroller.
Software Setup:
- Install the appropriate UWB Click library or driver from Mikroe's website.
- Configure the SPI interface on your microcontroller to match the module's settings.
Basic Circuit Example:
- Connect the UWB Click to an Arduino UNO using an adapter or shield that supports mikroBUS™.
- Ensure proper grounding and power connections.

Arduino UNO Example Code

Below is an example code snippet to initialize and communicate with the UWB Click module using SPI:

#include <SPI.h>

// Define SPI pins for Arduino UNO
#define CS_PIN 10  // Chip Select pin
#define RST_PIN 9  // Reset pin
#define INT_PIN 2  // Interrupt pin

void setup() {
  // Initialize Serial Monitor
  Serial.begin(9600);
  while (!Serial);

  // Initialize SPI
  SPI.begin();
  pinMode(CS_PIN, OUTPUT);
  pinMode(RST_PIN, OUTPUT);
  pinMode(INT_PIN, INPUT);

  // Reset the UWB Click module
  digitalWrite(RST_PIN, LOW);
  delay(100);
  digitalWrite(RST_PIN, HIGH);
  delay(100);

  Serial.println("UWB Click initialized.");
}

void loop() {
  // Example: Send a command to the UWB Click module
  digitalWrite(CS_PIN, LOW);  // Select the module
  SPI.transfer(0x01);         // Example command (replace with actual command)
  digitalWrite(CS_PIN, HIGH); // Deselect the module

  delay(1000); // Wait for 1 second
}

Important Considerations and Best Practices

Power Supply: Ensure a stable 3.3V power supply to avoid communication errors or module damage.
SPI Configuration: Match the SPI clock speed and mode with the UWB Click's requirements.
Antenna Placement: For optimal performance, ensure the module's antenna is unobstructed and positioned away from metal surfaces.
Interrupt Handling: Use the INT pin to handle events like data reception or ranging completion efficiently.

Troubleshooting and FAQs

Common Issues and Solutions

Module Not Responding:
- Verify the power supply voltage (3.3V).
- Check SPI connections and ensure proper pin mapping.
- Reset the module using the RST pin.
Inaccurate Ranging Results:
- Ensure there are no obstacles or interference in the UWB signal path.
- Verify the antenna placement and orientation.
Communication Errors:
- Check the SPI clock speed and mode configuration.
- Ensure the CS pin is toggled correctly during communication.

FAQs

Q1: Can the UWB Click be used outdoors?
A1: Yes, the UWB Click can be used outdoors, but environmental factors like obstacles and interference may affect performance.

Q2: What is the maximum range of the UWB Click?
A2: The module supports a maximum range of approximately 50 meters in ideal conditions.

Q3: Is the UWB Click compatible with 5V systems?
A3: No, the UWB Click operates at 3.3V. Use a level shifter if interfacing with a 5V system.

Q4: Can multiple UWB Click modules be used simultaneously?
A4: Yes, multiple modules can be used for multi-node localization systems, but ensure proper synchronization and channel configuration.

By following this documentation, users can effectively integrate and utilize the UWB Click module in their projects.