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The USB to RS485 module is a cost-effective way to convert RS485 industrial buses to a USB interface. When connected to a PC USB port the USB to RS485 module is automatically detected and is installed as a native COM port which is compatible with any existing serial communication application. Multiple modules can be installed when using USB hubs thus allowing a hassle-free configuration of a multi serial system. Features
- Reliable RS485 link
- Automatic Switching between Transmit/Receive mode of RS485.
- Twisted pair cable can work upto 1.2 Km distance.
- Ground Output for wire shielding.
- USB Powered
- USB Port Plugabble type
- Designed for industrial environment
- Any baud rate from 1200 bps to 115 kbps
- Current: 100mA current at 5V DC taken from PC’s USB Port
- Modes: RS-485 Half Duplex (2-wire)
- Built in terminal resistor of 120R Ohm
- Length of twisted pair cable maximum can be 1.2 Km (Kilometer) Maximum
- Cable type for optimal range: Two core, Twisted Pair Shielded type, D and D- should be twisted with each other to get optimal range
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The cable is easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. Inside the big USB plug is a USB<->Serial conversion chip and at the end of the 36" cable are four wire - red power, black ground, white RX into USB port, and green TX out of the USB port. The power pin provides the 5V @ 500mA direct from the USB port and the RX/TX pins are 3.3V level for interfacing with the most common 3.3V logic level chip-sets.
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Description:
- The dimensions: 32mm x 14mm approx
- The working voltage: 3.3V-5V DC
- On-board LM393 voltage comparator chip and vibration sensing (generally SW-18010P) probe.
- Sensitivity adjustable (fine tune) using potentiometer.
- Can be used to detect vibration and other occasions.
- On-board output signal indication LED, effective output signal is high level, and the same time the indicator LED turns on.
- Output signal can be directly connected to the microcontroller I
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Inputs
- GND – This is where you connect the low side of the voltage you are measuring. Caution! : This is the same electrical point as your Arduino ground.
- VCC: The is where you connect the high side of the voltage you are measuring
Outputs
- S: This connects to your Arduino analog input.
- – (or minus): This connects to your Arduino ground.
- : This is not connected. It does absolutely nothing.
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VS1003 is an MP3 module with on-board microphone, it supports audio decoding formats of MP3, MP3 V, WMA, WAV, MIDI and the SP-MIDI.
Features
- Separate analog, digital and IO power supply; serial data and control interface (SPI).
- 1 headphones and audio output interface, the internal PLL clock frequency multiplier; high-quality stereo DAC, 16-bit adjustable-chip ADC, high-quality stereo earplugs drive (30 EURO)
- A microphone for recording, support for recording encoding format: IMA ADPCM (monaural).
- 1 ine_in input interface supports two input methods; supports MP3 and WAV streams.
- Separate analog, digital and IO power supply
- On-board 3.3V and 2.5V LDO chip AMS-1117, the largest current provide of 800mA.
- Single power supply: 5 VDC, capacitor filter.
- 12.288 MHz crystal.