PCF8591 AD/DA converter module

1. Single power supply;
2. The normal operating supply voltage range of 2.5V ~ 6V;
3. Completed through the I2C bus data input / output;
4. Device address is determined by three address pins;
5. The sampling frequency is decided by the I2C bus transfer rate;
6. The 4 Road analog inputs programmable as single-ended or differential inputs;
7. Can be configured to convert the channel number is automatically increased functionality;
8. The analog voltage range of VSS ~ VDD;
9. On-chip track-and-hold function;
10. 8-bit successive approximation A / D conversion;
11. Multiplication with one analog output D / A converter.

Module Description:

• Module chip with PCF8591T, SMD package
• Support 4 channel analog voltage the acquisition signal input (voltage input range of 0 - 5V)
• Module with power indicator 1 (D1)
• A module with DA output indicator (D2), when the DA output voltage reaches a certain value, the indicator light, the higher the voltage value, the brighter lights
• The module integrates a Road 0 - 5V voltage input acquisition (through the blue and white potentiometer to adjust the input voltage)
• The module Integrated Road the photoresistor (Model: 5537), ambient light intensity by AD collection
• Module integrated way thermistor (Model: MF58) ambient temperature by AD collection
• PCB size: 48mm * 25mm * 1.6mm
• Quality panel corners arc design will not scratch your hand. With a positioning hole aperture 3.1mm, easy to use 3mm Tongzhu fixed

Wiring instructions:

Left 4 pin:

• SDA IIC data interface connected microcontroller IO ports (P2.0)
• SCL IIC clock interface connected microcontroller IO port (P2.1)
• The cathode interface external VCC power 3.3/5V positive power supply
• GND Negative interface external 3.3/5V negative supply

Right 8 pin :

• AOUT module DA output port
• AIN3 analog input signal interface
• AIN2 analog input signal interface
• AIN1 analog input signal interface
• AIN0 analog input signal interface 0
• The INPUT3 analog input signal interface 3
• INPUT2 thermistor signal input port is connected to
• The INPUT1 has photoresistor signal input port connected to theINPUT0 is connected to the signal input port of the potentiometer

Features

• Support acquisition of external 4-line voltage inputs (ranging 0-5v), with a single power supply
• Standard double-sided printed circuit board, 1.16mm thick, with an elegant layout, 3-mm holes at each corner for easy fixing
• Use an 8-bit successive approximation A/D converter
• Input/output by an I2C bus
• Working voltage: 2.5-6V DC; PCB size: 2.4 x 2.8 cm
• Single supply, low standby current
• Address by 3 hardware address pins