DescriptionKey Indicators: Single-Supply OperationPCF8591 Operating Voltage Range of 2.5V to 6vlow Standby Currentthrough the i2c Bus Serial Input / OutputPCF8591 by Hardware Address Pins. 8591 i2c bus rate decied4 analog inputs program as single-ended or differential inputsautomatic Incremental Channel Selectionpcf8591 Analog Voltage Range from VSS to VDDPCF8591 Built-In Track and Hold Circuit8-Bit Succeration Approximation A / D Converterthrough An analog Output Dac GainDiscription: 1. A module chip using PCF89512. Module supports external voltage input capture (Input Voltage Range 0-5V) 3. Three modules integrated photoresistor acquisition environment through the ad intensity Accurate Numerical4. Modules integrated thermistor, Can Capture the Precise Value of the Ambient Temperature Through the Ad5. The following-module integrated 1 channel 0-5V Voltage Input Acquisition 6. Modules with Power Indicator Light (On the Module After Power Indicator Lights) 7. Modules with the da output indicator light board da output indicator module da output interface voltage read a centain Value, The Voltage the Greater the Light Brightness is More Obvious; 8. Module PCB Size: 3.6cm * 2.3cm9. Standard Double-Sied, Plate Thickness 1.6mm, The Layout is Nice, Surrounded by Through-Hole, AperTure: 3mm, Convenient Fixedinterface: The Module's Left and Right, Respective, the External Expansion of 2-Wine Pin. e, respectively, as FOLLOWS: OUTPUT INTERFACE OF THE LEFT THE AUTHOR CHIP DATE AINO CHIP INTERFACE.AIN1 CHIP ANALOG INPUT INTERFACEIN2 icrocontroller io portte sda ​​iic digital interface connected microcontroller Io Portgnd Module to an ExternalVCC Power Supply Interface External 3.3V-5VMODULE RED JUMPER INSTRUCTIONS FOR USEMODULE Three Red Short Circuit Cap, Respective, The Role Are As Follows: Lect Thermistor Access Circuitp5 Connected To P5 Jumper To Select The photo