ADS1115 Analog-Digital Converter...
This NRF24L01 adapter module facilitates connection to the microcontroller. It features 3.3 V voltage regulator, a LED light power indicator, and a pinhead-wire connection with the development board.
Adafruit HUZZAH32 Developement Board – ESP32 Feather
This module is based on the FM Radio Si4703 tuner. It is compatible with both RDS and RDS (Radio Data Service / Radio Broadcast Data Service), and allows you to detect the name of the radio station, which you can display on an external dump.
This product is a very small NFC NTAG203 sticker, a 23 mm diameter, useful to store a small amount of data. The main advantage of this device is that it offers high security and portability, requiring only a reader and not even a power source.
This module uses the nRF24L01 integrated circuit, which is a low cost highly integrated RF transceiver, which operates in the standard ISM brand and is capable of data rates up to 2 Mbps.
Miniature Long Range nRF24L01 Trasnceiver PA + LNA (with a single line of pins)
This CC2541 Bluetooth 4.0 Module is based on Bluetooth 4.0 protocol standard that can support the user through the AT command to modify the device name, transmit power, match password and other instructions, convenient and flexible to use.
This module is based on VS1838B IR receiver. It is suitable for projects which require sending less data remotely, such as to automated closing and opening a window or to changing light intensity.
This RFID reader module is based on the MFRC522 IC, a highly integrated read-write 13.56 MHz contactless RFID communication chip, that allows you to easily add RFID communication capabilities to your new project. Perfect to use in Door Lock project. Working voltage: 3.3 V.
With this module, you can transmit data from the serial interface over Wi-Fi quickly and easily. It has low-power control, status indicator and can send data in real time.
ESP32 WiFi and Bluetooth Development Board
DC12V 4CH Wireless RF Remote Control Switch Transmitter Receiver Module This module has the advantage of being remote controlled and having four relays that work on a voltage of 12 V with a very small current draw of 5mA.
Feather is the new development board from Adafruit, and like its namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores.
This is a 2.4 GHz nRF24L01 transceiver with PA and LNA circuit on board. With its antenna, it can reach 1100 meters transmission distance making it ideal for long-range communication for your project.
The HC-05 Bluetooth module is a high performance and consumes very little energy. Also, its dimensions are small. The product can be used in your innovative projects where you need to transmit data very easily but not by cable at reasonable distances of up to 10m.