Product Description

Description:
1. A module chip using PCF8951
2. The module supports external voltage input capture (input voltage range 0-5v)
3. Three modules integrate photoresistor acquisition environment through AD intensity accurate values
4. The module integrates thermistor, which can capture the precise value of the ambient temperature through AD
5, five modules integrated 1-channel 0-5V voltage input acquisition (blue potentiometer to adjust the input voltage)
6. Module with power indicator (on module with power indicator on)
7. Module and DA output indicator board The voltage of the DA output port on the DA output indicator module reaches a certain level
The higher the voltage, the more obvious the light brightness;
8. Module PCB size: 3.6cm * 2.3cm
9. Standard double-sided, plate thickness 1.6mm, beautiful layout, through hole surround, aperture: 3mm, convenient
immobilization
Interface:
The left, right and external expansion of the module are respectively 2 pin interfaces, as follows:
Left AOUT chip DA output interface
AINO chip simulates input interface.
AIN1 chip analog input interface
AIN2 chip analog input interface
AIN3 chip analog input interface
The right side of the SCL IIC clock interface accesses the microcontroller I/O port
SDA IIC Digital port Connects to the I/O port of the microcontroller
GND module to external
VCC power port external 3.3v-5v
Module red jumper usage
The module has three red short-circuit caps, which function as follows:
Connect P4 to P4 jumper and select thermistor access circuit
P5 is connected to the P5 jumper to select the photoresistor access circuit
Connect P6 to P6 jumper and select 0-5V adjustable voltage access circuit

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