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CH340 is a USB bus convert chip and it can realize USB convert to serial interface, USB convert to IrDA infrared or USB convert to printer interface. In serial interface mode, CH340 supplies common MODEM liaison signal, used to enlarge asynchronous serial interface of computer or upgrade the common serial device to USB bus directly. More detail about USB convert to printer interface please referring to the second manual CH340DS2. In infrared mode, add infrared transceiver to CH340 can compose USB infrared adapter, realize SIR infrared communication.
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Feature: The body that can be used to measure the electrical activity of the skin (EDA), also known as the galvanic skin response (GSR). EDA is actually a characteristic of the human body that leads to continuous changes in the electrical properties of the skin. EDA monitoring is usually combined with monitoring of heart rate, respiratory rate, and blood pressure to fully understand some parameters of the human autonomic nervous system. EDA measurements are an integral part of modern lie detectors and are often used as lie detectors. GSR clicks are ideally suited as an experimental tool for research, as well as for establishing effective test applications based on EDA reactions - such as polygraphs. MCP607 2.5V to 6.0V Micropower CMOS Op Amp, MCP3201 2.7V 12-Bit A/D Converter with SPI Serial Interface, MCP1541 2.5V, and 4.096V The click features a precise 12bit AD converter so that the measured data can be digitally processed by the MCU via the SPI, it also outputs buffered analog signal for further processing (analog or digital)
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CP2112 debug board USB to I2C Communication Module E-879 On-chip power-on reset circuit, on-chip voltage regulator: 3.45 V output Compliant with USB specification 2.0 standard; full speed (12Mbps) USB suspend status via SUSPEND and /SUSPEND pins Integrated 194-byte one-time programmable ROM for storing customizable product information 512-byte SMBus data buffer, configurable clock speed device address 7-bit value is the slave address of CP2112 Windows, Mac, and Linux HID to SMBus libraries API for rapid application development, open-access interface specifications. 8 GPIOs can be configured as input/output and open-drain/push-pull, configurable clock output for external devices 48MHz to 94kHz, switching LEDs during reading/write SMBus