Unit UWB
Description
Unit UWB is a wireless communication unit equipped with indoor positioning technology. The design adopts the Ai-Thinker BU01 module solution (an ultra-wideband (UWB) transceiver module based on Decawave's DW1000). It features a built-in STM32 and integrated ranging algorithm, achieving a positioning accuracy of up to 10 cm, and supports AT command control. When applied to indoor wireless ranging, it operates in base station and tag modes (the base station calculates and outputs position information to the tag).
Features
- Positioning accuracy: 10 cm
- Built-in STM32 with integrated ranging algorithm
- AT command control
- Serial communication (baud rate: 115200)
- Easy integration, no RF design required
- Complies with IEEE 802.15.4-2011 UWB standard
- Supports two-way ranging and TDOA
- Development platforms: Arduino, UIFlow (Blockly, Python)
- 2 x LEGO-compatible holes
Includes
- 1 x Unit UWB
- 1 x HY2.0-4P Grove cable (20 cm)
Applications
- Indoor positioning/wireless ranging
Specifications
| Specification | Parameter |
|---|---|
| Data transfer rate | 110 kbit/s, 850 kbit/s, and 6.8 Mbit/s |
| Frequency band | 6 bands: from 3.5 GHz to 6.5 GHz |
| Transmit power | -14 dBm/-10 dBm |
| Transmit power density | <-41.3 dBm / MHz |
| Supported packet size | 1023 bytes |
| Modulation method | BPM (Binary Phase Modulation) and BPSK (Binary Phase Shift Keying) |
| FDMA | 6 channels |
| Net weight | 7 g |
| Gross weight | 19 g |
| Product dimensions | 48 x 24 x 8 mm |
| Package dimensions | 136 x 92 x 10 mm |
Learn
Note: The firmware currently installed on this unit only supports the transmission of ranging information and does not support custom information transmission. When in use, it supports the configuration of up to 4 base station devices (using different IDs), and only a single tag device is allowed to operate at any given time.
Schematics
PinMap
Unit UWB
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.C | GND | 5V | UART_TX | UART_RX |
Datasheets
Model Size
Softwares
Arduino
UIFlow 1.0
UIFlow 2.0
Protocol
Note: Each command must end with a carriage return and line feed \r\n
- Setting AT Commands
AT+switchdis=value
- Command description: Controls the ranging switch, only valid in tag mode
- Response:
- When value equals 0, ranging is turned off, returns ok.
- When value equals 1, ranging is turned on, returns ok.
AT+interval=value
- Command description: Sets the ranging interval
- Response: OK
Note:
The range is 5-50 meters, setting how many data points are collected before outputting the distance. The larger the value, the slower the refresh rate.
The range is 5-50 meters, setting how many data points are collected before outputting the distance. The larger the value, the slower the refresh rate.
AT+version?
- Command description: Gets the manufacturer, module series, and version number
- Response: "AIT-BU01-DB V000 T2020-4-17 OK"
AT+RST
- Command description: Resets the module
- Response: OK
AT+anchor_tag=model,ID
- Command description: Sets the device mode and ID
- Parameters:
- Model 1 selects anchor mode, 0 selects tag mode
- ID sets the base station and tag ID
- Response: OK
// Base station mode
AT+anchor_tag=1,0
+anchor_tag=OK
AT+RST
+RST=OK
// Tag mode
AT+RST
+RST=OK
AT+anchor_tag=0
+anchor_tag=OK
AT+interval=5
+interval=OK
AT+switchdis=1
+switchdis=OK
// Returns ranging results
//....
EasyLoader
| Easyloader | Download Link | Notes |
|---|---|---|
| Unit UWB Example with M5Core | download | / |