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Arduino compatible tag
A single Arduino compatible pozyx tag. Localization is not possible without the anchors.
Overview
The Pozyx tag is an Arduino compatible shield that provides accurate positioning and motion information. The tag is meant to work in combination with anchors, either from the DIY series or the Enterprise series. The pozyx tag connects to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top. The tag does not need an Arduino to work.
- Works with both Enterprise and DIY series
- Compatible with an Arduino board
- On-board ultra-wideband transceiver
- On-board 9-axis inertial measurement unit
- On-board pressure sensor
- Operating voltage 3.3 V
- Connection with Arduino on I2C
- Micro-USB for updating the Pozyx firmware or used as virtual COM port
Description
The Pozyx tag provides accurate positioning and motion information. For this, it utilizes a set of sensors and an ultra-wideband (UWB) transceiver. The principal component is the DW1000 UWB-chip from Decawave that is used for wireless ranging and messaging. Furthermore, the board is equipped with a 9-axis inertial measurement unit for orientation information.
On board interfaces
- I2C. Arduino communicates with the Pozyx tag by means of I2C (SCL and SDA pin) and two optional interrupt pins (pins 2 or 3). Because the I2C bus can be shared with other peripherals, the tag will not interfere with other Arduino shields. The ICSP header from the Arduino is not passed through, hence other boards requiring this interface must be stacked lower than the Pozyx tag.
- Micro USB. The micro USB can be used for two purposes: either, for updating the Pozyx firmware in case new features are provided through us. Secondly, it can be used to connect (and power) the tag to a computer. This way, the tag can be controlled through the computer without requiring an Arduino.
Technical specifications
Board
- Arduino Uno compatible
- STM32F4 microcontroller
- I2C for serial communication
- Micro USB for firmware updates
- 4 general purpose LEDS
- 2 LEDs for UWB connectivity
- 4 optional GPIO pins
- Onboard 3.3V regulator: automatic power selection from battery, arduino or usb
- Tag-size: 6 cm x 5.3 cm
- Tag-weight: 12 g
Ultra-wideband
- Decawave DW1000 transceiver
- Onboard chip antenna
- 10 cm accurate ranging
- Up to 100m range
- Frequency range 3.5 - 6.5 GHz
- Up to 6.8 Mbps communication
Motion sensors
- BNO-055 chip
- 3 axis accelerometer
- 3 axis gyroscope
- 3 axis compass
- MPL3115A2 pressure sensor