The Argon is a powerful Wi-Fi enabled development kit that can act as a standalone Wi-Fi endpoint. It is based on the Nordic nRF52840 and has built-in battery charging circuitry so it’s easy to connect a Li-Po and deploy your local network in minutes.

The Argon is great for connecting projects or as a gateway to connect an entire group of local endpoints. It's everything you love about the Photon, with more features like Bluetooth.

Specifications :

Espressif ESP32-D0WD 2.4G Wi-Fi coprocessorOn-board 4MB flash for ESP32802.11 b/g/n support802.11 n (2.4 GHz), up to 150 Mbps
Nordic Semiconductor nRF52840 SoCARM Cortex-M4F 32-bit processor @ 64MHz1MB flash, 256KB RAMIEEE 802.15.4-2006: 250 KbpsBluetooth 5: 2 Mbps, 1 Mbps, 500 Kbps, 125 KbpsSupports DSP instructions, HW accelerated Floating Point Unit (FPU) calculationsARM TrustZone CryptoCell-310 Cryptographic and security moduleUp to +8 dBm TX power (down to -20 dBm in 4 dB steps)NFC-A tag
On-board additional 4MB SPI flash
20 mixed signal GPIO (6 x Analog, 8 x PWM), UART, I2C, SPI
Micro USB 2.0 full speed (12 Mbps)
Integrated Li-Po charging and battery connector
JTAG (SWD) Connector
RGB status LED
Reset and Mode buttons
On-board 2.4GHz PCB antenna for Thread/BLE (does not support Wi-Fi)
Two U.FL connectors for external antennas (one for Thread/BLE, another for Wi-Fi)
Meets the Feather specification in dimensions and pinout
FCC, CE, and IC certified
RoHS compliant (lead-free)

Documents:

Datasheet

Package Includes:

Argon development board
Mini breadboard
2.4GHz flex antenna (ANT-FLXV2)
USB cable
Starter project includes two resistors (220 ohm), one red LED, and one photodiode