16-button membrane keyboard with interface component for microcontroller projects.
RFID Reader/Writer, NFC module, MFRC522.
This dual function module uses the extremely accurate ( error value of 1-2 ppm ) DS3231 clock chip with a 2kb memory module ( with 8 address options ) and has a CR-1220 battery back-up included.
This simple set for 3D printer base on microcontroller Mega 2560 + RAMPS 1.4 + motor drivers, it is a solution for
This module is the same, that the Thyristor AC switch.
If you need to control the AC power (lights, home equipment’s), a thyristor can help you with that.