SparkFun XBee Explorer Dongle

USB adapter that allows a direct USB connection to your ESP8266 ESP-01 or ESP-01S WiFi module. Based on the CH340 integrated circuit, which is a USB - Serial converter (UART).

WROOM-32 DEVKIT V1 is an ESP32 processor development board with WiFi and Bluetooth (BLE). It is much faster than the ESP8266 processor (NodeMCU and similar), and very easy to use, with 2x15 pins.

The SparkFun ESP32 thing is an upgrade to boards based on the popular ESP8266. What the 32 version has to offer on top? Well one of the largest upgrades is support for Bluetooth communications and nearly 30 I/O pins. Makes it pretty perfect for any IoT solution, right?

WT32-SC01 development board with Esp32 from Espressif. 3.5 inch 480 x 320 TFT LCD touch screen, 4MB SPI Flash and 8MB PSRAM.

TUYA IoT interface module - you will be able to control your projects IoT Internet of Things interface of your Arduino. Tuya interface that allows you to control outputs of the Arduino module via WiFi network using apps for Android and iOS mobile devices. The device communicates with Arduino via UART interface, powered by 5V.

The SparkFun WiFi ESP8266 Shield is a shield for Arduino R3 R3 board enabling internet connection. ESP8266 as you all know is a solid fundament for any IoT project an in this version it can be simply and easily put on your board. It is a great middle ground between the sole module and the development board such NodeMcu or WeMos. So if you need a relatively cheap and super reliable way to internet for your Arduino project - this is the shield for you! ESP8266 shield WiFi comes with an AT-command firmware, hence can be controlled by any UART. It works great with any Arduino R· layout. The shield doesn´t have the headers on.

A Mini WIFI board ESP8266 contains 16MB flash, external antenna connector and built-in ceramic antenna based on ESP-8266EX. Wemos D1 Mini Pro-16 Module + Esp8266 Wifi Series Wireless Antenna features:
- Compatible with Arduino, programming with the Arduino IDE, MicroPython, NodeMCU
- Supply voltage: 5V
- Logical levels: 3.3V - 16MB (128Mbit) flash
- 11 pins of input / output - I2C / one-wire interface, LOLIN I2C port
- 1 ADC (input: 0-3.2V) - built-in ceramic antenna - external antenna connector - Power switch - Includes external WIFI antenna with IPEX SMA adapter Wemos D1 Mini Pro-16 Module + Esp8266 Wifi Series Wireless Antenna features:
of esp8266:
- Supported protocols: 802.11 b / g / n
- Network support: 2 , 4 GHz

"SenseCAP K1100 - The Sensor Prototype Kit with LoRa® and AI allows you to quickly digitise your world with LoRaWAN® and solve real-world challenges. With this plug-and-play toolkit, anyone can add artificial intelligence to their edge devices and unlock the potential of AIoT.

ESP32-S3-DevKitC-1-N8R8 general-purpose development board based on the ESP32-S3R8-WROOM-1 chip, Flash 8MB, PSRAM 8MB.

You can easily control any device over the Internet through your phone, computer, etc.
The module can handle 5 users at the same time, it can work in two modes: STA (client) and AP (access point).
In AP mode, the module is connected via WIFI directly to your phone or computer (in open field can be up to 300 meters).
In STA mode, the relay module is connected to the access point (router) that supplies the network.
Wi-Fi in the room where the relays are located. In this case, the range mainly depends on the power of the access point antennas (routers).
You should not turn off after the configuration is completed, as some of the parameters of the WIFI module cannot be saved when power is cut off.