This sensor takes a continuous reading of any obstacle and settles it at output in TTL form within 2ms. The sensor provides easy interface of 3-wire with power, ground and the output voltage. The sensor works on 5V input
Infrared Obstacle Avoidance IR Sensor Module has a pair of infrared transmitting and receiving tubes. When the transmitted light waves are reflected back, the reflected IR waves will be received by the receiver tube. The onboard comparator circuitry does the processing and the green indicator LED comes to life.
This is a Pulse Oximeter and Heart rate Sensor module based upon Maxim's MAX30100 integrated IC which is an compact low cost integrated solution for measuring Heart Rate as well as Pulse oximeter.
The MAX30102 is an integrated pulse oximeter and heart rate monitor bio sensor module. It integrates a red LED and an infrared LED, photo detector, optical components, and low-noise electronic circuitry with ambient light suppression.
MCP23017 16-BIT I/O Expander Serial I2C Interface Module Add another 16 pins to your microcontroller . The MCP23017 uses two i2c pins (these can be shared with other i2c devices), and in exchange gives you 16 general purpose pins.
MicroSD Card module is a Micro SD card reader module, and the SPI interface via the file system driver, microcontroller system to complete the MicroSD card read and write files. Arduino users can directly use the Arduino IDE comes with an SD card to complete the library card initialization and read-write.
