- Out-of-Stock
Banana Pi BPI AD/DA Expansion Module
ID: 558357
BPI AD/DA extend module with the PCF8591 single-chip, single-supply low-power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface
Description
The DA/AD module is specifically designed for BananaPi. It communicated with BananaPi through I2C bus. There is a LED light on the board that you can adjust brightness through DA. The module supply 4 ADC channel through header on the left side of module and the thermistor interface. The user can choose according to actual demand and use them. The module is easy to use even you don’t need to write C code. Because the module support wiringPi so you can use shell script to control it.
The PCF8591 is a single-chip, single-supply low-power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C bus interface. Three address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I2C bus without additional hardware.
Address, control and data to and from the device are transferred serially via the two-line bidirectional I2C bus. The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit analog-to-digital conversion and an 8-bit digital-to-analog conversion. The maximum conversion rate is given by the maximum speed of the I2C bus.
Features
- PCF8591T chip
- DA/AD in one module
- 8-bit high resolution DA/AD
- Compatible with wiringPi
- Supplies thermistor and photoresistance
Ports
- Banana Pi connection port,can also be used on a Raspberry Pi
- 4 external analog channels
- Electric level switch jumper
- LED of DA choice jumper
Product parameters
- Working voltage: 2.5 - 6.0 V
- 8-bit successive approximation A/D conversion
- Multiplying DAC with one analog output
- Analog voltage range from Vss to VDD
- 4 analog inputs configurable as single ended or differential inputs
- Max. sampling rate given by I2C bus speed
- Temperature range: −40°C to +85°C operation
Typical applications
- Supply monitoring
- Reference setting
- Analog control loop
558357
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BPI AD/DA extend module with the PCF8591 single-chip, single-supply low-power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface