ESP8266 Antenna Mod - extend WiFi range - DIY - openHAB Community
External Antenna for ESP8266 : 5 Steps - Instructables
Are ESP8266 WiFi modules suitable for long-term operation (i.e. for whole year)? - Quora
ESP8266 WiFi Module with PCB Antenna - ElectroPeak
How to add an external antenna to an ESP board - #20 by laca75tn - ESPHome - Home Assistant Community
How to add an external antenna to an ESP board - ESPHome - Home Assistant Community
Wemos D1 Mini Pro 16m Bytes External Antenna Connector Nodemcu Based Esp8266 Esp-8266ex Cp2104 Wifi Development Board Micro Usb - Integrated Circuits - AliExpress