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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.
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Development platform powered by Exynos5 Octa Cortex™-A15 1.6Ghz quad core and Cortex™-A7 quad core CPUs
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2-channel M.2 SATA expander equipped with PCIe X1 connector. It supports support for SSDs that work with the SATA protocol. Waveshare PCIe-SATA-M2-2P-A
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Two large (120mm-diameter) wheels with black tires are made of soft, spiked rubber for increased traction, and the plastic hubs are metallic red in color. Sold in pairs. Pololu 1555
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ROSA3D filament made of high-quality PLA-Silk granules characterized by intense color and exceptional gloss. 0.8 kg of filament with a diameter of 1.75 mm is wound on the spool. Filament ROSA3D PLA-Silk Fuchsia
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Shielded FTP category 5E Ethernet network cable with RJ45 plugs. Lanberg PCF5-10CC-0025-B
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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