WiFi ESP8266 Serial TTL Module RFID Card This enables the use of

This enables the use of current limiting resistors tointerface inputs to voltages in excess of VCC

The  sensor measures distance using sonar

social insurance

Totally submersible and ignition protected

It uses M393 in an integrated circuit

WiFi ESP8266 Serial TTL Module RFID Card This enables the use ofIntroduction : This ESP8266 Serial Port To Wi Fi Module, FL M1S serial transceiver module, based on (ESP8266 ESP 01 )with an integrated TCP IP protocol stack It can either host the application or offload all Wi Fi networking functions from another application processor. ESP8266 has powerful onboard processing and storage capabilities allowing it to integrate with sensors and other devices through GPIOs with minimal development up front and minimal