Serial Bluetooth Module (Master/Slave) HC-05 VS1838B The sensor works by shining

The sensor works by shining a white light on an object and measuring the amount of red

a pull-up resistor is needed on the INT line to pull it HIGH when it is not being driven LOW

Each decoder features an enable input (nE)

TLC7528CN is a dual 8-bit Digital-to-analog Converter (DAC) designed with separate on-chip data latches and feature exceptionally close DAC-to-DAC matching

Serial Bluetooth Module (Master/Slave) HC-05 VS1838B The sensor works by shiningIntroduction : Serial Bluetooth Module (Master Slave) HC 05 can be used in a Master or Slave configuration. The HC 05 Bluetooth module can connect to other modules in two ways as a master, or as a slave. For example, a robot can be designed to be a master connected to a slave Bluetooth module or as a slave board to make a wireless connection with a PC and smart phones It can easily transfer data wirelessly, without complex PCB layout or deep knowledge