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RS232 click provides an interface between the TTL/CMOS logic levels commonly used on microcontrollers and the RS-232 bus. RS-232 is a rather old communication protocol that has survived thanks to its robustness and implementation on many personal computer motherboards. It can still be found on various pieces of DTE and DCE equipment. This Click board™ allows standard type MCUs to communicate through the RS-232 interface via the standard UART bus pins: RX and TX. The RS-232 click utilizes the MAX3232, a 3.0V to 5.5V low power, true RS-232 transceiver, from Maxim Integrated. This device can achieve communication speed up to 232 kbps (EIA/TIA-232).
The USB UART Board is a prototype board that features a USB support with an on-board USB to serial UART interface device FT232RL. There is also a jumper used for selecting VCC output level provided on the board.
FTDI Click features FT2232H - dual high speed USB 2.0 to UART/I2C/SPI serial interface converter. It includes DA converter and EEPROM as well.
RS485 6 Click offers a half-duplex RS-485 communication with integrated surge protection, which can be used as an interface between the TTL level UART and the RS485 communication bus. It is based on THVD1429DT, a transceiver from Texas Instruments with signaling rate of up to 20 Mbps. This device features a wide common-mode voltage range from 3.3V to 5V, which makes it suitable for multi-point applications over long cable runs and noisy areas thanks to the integrated transient voltage suppressor (TVS) diodes in. This device and type of network is perfectly suitable for wireless infrastructure, building automation, HVAC systems or factory automation, and many more.
RS485 6 Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.