ESPARGOS One
ESPARGOS One is our first phase-coherent ESP32 WiFi antenna array, and a powerful tool for wireless research: an 8-antenna sensing device controlled over Power-over-Ethernet that streams real-time channel state information to your application.
Channel State Information
ESPARGOS provides Channel State Information (CSI) estimated from the L-LTF and HT-LTF pilot symbols in real time. Viewed in frequency domain, CSI contains information about the phase shift and attenuation experienced by the OFDM subcarriers. After a fourier transform, CSI can be interpreted as a channel impulse response. ESPARGOS supports channel bonding, achieving a bandwidth of up to 40 MHz.
Power over Ethernet
Avoid the hassle of running separate data, power and signalling cables: ESPARGOS is controlled over Ethernet, provides a simple web interface for configuration and can be powered from a power over ethernet (PoE) switch / injector. This makes ESPARGOS easy to use and deployments are quick to set up.
Python Library
With pyespargos, there is an easy-to-use library to control one or multiple ESPARGOS devices.
Configure ESPARGOS with the built-in web interface, and then easily stream channel state information to your application in real time.
The python library comes with a collection of demo applications to get you started.
Technical Specifications
- Provides phase-coherent CSI for 802.11g/n/ax packets
- Bandwidth: 20 MHz, or 40 MHz for 802.11n channel bonding
- 100BASE-TX Ethernet with PoE for data / power
- IEEE 802.3at Type 1 compliant PoE (class 3)
- 8× dual-polarized patch antennas (mixed linear / circular)
- Reference signal input / output for coherent multi-array setups
- λ / 2 antenna spacing (60mm)
- Power Consumption: ~3.5W
Further details are available in the datasheet.