9V battery holder without DC connector

28,000 تومان
100% Brand new and high quality. Single Slots 1x 9V Battery Holder Case with wire leads for soldering / connecting.

Micro USB Interface Board Power Switch Interface

32,000 تومان
CJMCU Micro USB Interface Board Power Switch Interface Feature: 5V power supply Package included: 1 x CJMCU Micro USB Interface

mini RS232 MAX3232 level to TTL level converter board serial converter board module

32,000 تومان
Technical parameter: Chip: domestic MAX3232CSE Voltage range: 3V~5V The highest baud rate: not higher than 120kbps Size: 9.4mm*15.9mm The module