Amazon.com: HiLetgo 3pcs ESP8266 ESP-01 Serial WiFi Wireless Transceiver Wireless Module Development Board LWIP AP+STA Compatible with Arduino : Electronics
Amazon.com: SunFounder Ethernet Shield W5100 Compatible with Arduino UNO R3 Mega 2560 1280 A057 : Electronics
Amazon.com: Arduino MKR MEM Shield [ASX00008] : Electronics
Amazon.com: Arduino MKR CAN Shield [ASX00005] : Electronics
Amazon.com: OSOYOO WiFi Internet of Things Learning Kit for Arduino | Include ESP8266 WiFi Shiled | Smart IOT Mechanical DIY Coding for Kids Teens Adults Programming Learning How to Code : Electronics
PHPoC P4S-347 R2 WiFi Programmable Internet of Things IoT Shield for Arduino | eBay
Amazon.com: Arduino MKR CAN Shield [ASX00005] : Electronics
Amazon.com: ESP8266 ESP-12E NodeMcu Lua WiFi Module Connector Development Board, for Arduino IDE Micropython, with Motor Drive Expansion Board : Electronics
Arduino Ethernet Shield with W5100
Amazon.com: DWEII 3PCS ESP-12E ESP8266 UART WiFi Wireless Shield for WeMos D1 CH340 WiFi Development Board ESP8266 ESP 12E for Arduino IDE UNO R3 : Electronics