Adafruit Feather 32u4 RFM95 LoRa Radio- 868 or 915 MHz - RadioFruit
This is the Adafruit Feather 32u4 LoRa Radio (RFM9x). We call these RadioFruits, our take on an microcontroller with a "Long Range (LoRa)" packet radio transceiver with built in USB and battery charging.
ITEAD Arduino IR Shield With Micro SD Slot Xbee Interface For Home Development
With this IR shield, you can intelligentize your home by making a DIY monitor for indoor temperature and humidity or a controller for IR home appliances such as air-condition and television.
Speech Synthesis Shield for Arduino
Ever want your robot could speak up and report what's going on? Or have your plants say if it feels thirsty? The Speech Synthesis Shield for Arduino makes it an easy way to give voice to your robots and projects.
Have you ever been in a situation where you need two communication methods for your project? How about when a serial port is occupied by another serial device, and you still need to setup wireless communication?
NFC / RFID Shield
Based on the NXP PN532 chipset - which is the most popular NFC ship on the market, this Arduino shield is powerful and you can use it to do a lot of things such as read and write to tags and cards, communicate with phones, or act like a NFC tag.
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