100% Brand new and high quality.Super strong Rare-Earth magnets,once they get stuck with each other,they are hard to break apart.Can also be used to extend protected lithium batteries with recessed contact points.Electtrically conductive(making them suitable to extend recessed batter..
TThis is based on RF module RC522 near field communication module.
Its working frequency is 13.56MHz and you can read and write a 13.56MHz tag with this module.
- Very easy to use with the library for Arduino: RFIDMaster.
- Operating voltage: 3.3V.
- Interface logic level: Onboar..
An open-source firmware and development kit that helps you to prototype your IOT product within a few Lua script lines.Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
1. NodeMCU is the fast leadin..