Digitaal naar Analoog en Analoog naar Digitaal Converter module met LDR en NTC DAC ADC 8-bit I2C PCF8591

Beschrijving

Description:

1 module adopts PCF8951 chip

2 module supports external 4-way voltage input acquisition (voltage input range is 0 to 5 v)

3 modules integrated photosensitive resistance, can pass AD gathering accurate numerical value of environmental light

4 modules integrated thermal resistor, can pass AD collection environment temperature precise values

5 module integrated 1 0 to 5 v voltage input acquisition (by blue potentiometer to adjust the input voltage) After

6 modules with power indicator light (for the module power supply indicator goes on)

7 with DA output module, when the module DA output voltage reaches a certain value, DA output indicator light will light up board, the bigger the voltage, the indicator light brightness, the more obvious;

8 module PCB size: 3.6 cm * 2.3 cm

9 standard double panel, thickness 1.6 mm, layout is beautiful and easy, all around has a through hole, the aperture is: 3 mm, convenient fixed

Module interface specification:

This module on the left and right respectively, outside enlarge two-way needle interface, respectively stated below:

On the left side:

AOUT chip DA output interface 

AINO chip analog input interface 0

AIN1 chip analog input interface 1

AIN2 chip analog input interface 2

AIN3 chip analog input interface 3

On the right side:

SCL IIC interface clock  microcontroller IO port

SDA IIC digital interface by microcontroller IO port

GND module to earth

VCC power supply interface  3.3 v to 5 v

Module red short circuit cap instructions

Short circuit module consists of three red hat, respectively as follows:

P4: P4 short-circuit cap is connected, select the thermistor connected to the circuit

P5: P5 short-circuit cap is connected, select the photosensitive resistor connected to the circuit

P6: P6 short-circuit cap is connected, 0 to 5 v adjustable voltage connected to the circuit