SparkFun XBee Explorer Dongle

The ESP32-CAM is a camera module with the ESP32-S chip. It features an OV2640 camera, several GPIOs to connect peripherals, and microSD card slot.

ESP8266 Thing Dev board from Sparkfun is a reliable, strong solution for IoT projects. The ESP8266 is a well-known WiFi controller from the boards such as NodeMcu and or WeMos. This board increases the reliability to maximum though. This version comes without headers.

Mini ESP8266 ESP12E CH340 WiFi Development
NodeMcu module based on ESP8266 controller and programming in Lua language
NodeMcu it is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC
It works as a standard WiFi 802.11 b / g / n 2.4 GHz
Wemos D1 Mini ESP8266 ESP12E CH340 WiFi Wireless Development features:

- Compatible with Arduino, programming with the Arduino IDE
- Power supply voltage: 5V
- LOGICAL LEVELS: 3.3V
- 11 input / output pins
- 1 ADC (input: 0-3.3V)
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz - Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- Integrated TCP / IP stack
- PLL, regulators and power management units Integrated

SparkFun IoT RedBoard development board compatible with Arduino. It incorporates an ESP32 chip with a 32-bit dual-core Xtensa LX6 microprocessor with a clock frequency of up to 240 MHz. It enables WiFi and Bluetooth wireless communication, making it versatile for Smart Home and IoT projects.

Shield Li-Po Battery for WeMos D1 Mini ESP826 features:
Connect the lithium battery to this shield to supply power for the entire D1 mini system.
When the battery is depleted, it is not necessary disconnect the battery, just use the usb port to charge directly. - Charging voltage: max: 10V, recommend: 5V
- Charging current: max: 1A
- Voltage lithium battery: 3.3-4.2V
- Boost power supply: 5V (max: 1 A)
- LED color: red for charging, green for fully charged
- Ports:
* Micro USB - Charging port (normal 5V)
* Connect to the lithium battery (normal 3.3-4.2V)
* J1 - setting the maximum charging current, 0.5 A or 1A

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

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.

ESP32-S3-DevKitC-1-N8 general-purpose development board based on the ESP32-S3-WROOM-1 chip.

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.

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.