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You can easily attach the shield behind a plastic plate with standoffs and still read cards through a (non-metal) barrier
Adafruit 32x32 RGB LED matrix panel (6mm pitch)
Four buffered 5V tolerant inputs
Included libraries and example code for both SD and RTC mean you can get going quickly
the firmware/sniffer code/usage is identical
Bluetooth 4.0 USB Module (v2.1 Back-Compatible) Capacitive Touchscreen You can easily attach theAdd Bluetooth capability to your computer super fast with a USB BT 4. 0 adapter. This adapter is backwards compatible with v2. 1 and earlier, but also supports the latest v4. 0 Bluetooth Low Energy. Inside lies a CSR8510 Bluetooth USB host. We've used this with great success on a Windows 7 computer, installing as a 'generic' Bluetooth device, but we expect it to work just fine with any modern computer as this chipset is very common. So far we've