RS485 CLICK 3.3V MikroElektronika

2. Soldering the headers 3.3V Before using your click board, make sure to solder the provided 1x8 male headers to both sides of the board. Two 1x8 male headers are included with the board in the package. 1 RS485 click 2 3 1. Introduction 4. Using the board There are four screw terminals on the board Those marked with + and - are RS485 dieff rential high and dieff rential low Turn the board upside down, so that Turn the board upward again. Make sure communication lines. We added two more bottom side is facing you upwards. Place to align the headers so that they are terminals for VCC and GND reference if needed shorter parts of the header pins in the perpendicular to the board, then solder the for further interfacing. Communication both soldering pad locations. pins carefully. with the board is done using simple UART interface. RS485 Click 3.3V is an accessory board 3. Plugging the board in in mikroBus form factor. The on-board click SN65HVD12 differential line transceiver Once you have soldered the headers your is suitable for high speed bidirectional board is ready to be placed into desired BOARD data communication on multipoint bus mikroBUS socket. Make sure to align the www.mikroe.com transmission lines. It is designed for balanced cut in the lower-right part of the board data transmission and complies with EIA with the markings on the silkscreen at the RS485 click 3.3V Manual RS-485 standard. This transceiver features mikroBUS socket. If all the pins are aligned ver. 1.00 a differential line driver and differential line correctly, push the board all the way receiver. Board is set to use 3.3V power into the socket. supply only.6. Node termination jumpers 5. RS485 click 3.3V Board Schematics 1. If the board is the rfi st node of RS485 network, all three jumpers J2-J4 should be placed. 2. If the board is a node in the middle, all jumpers should be removed. 3. If the board is the last node of the RS485 network, place only J4 termination jumper. VCC R/T AN PWM RST INT VCC VCC TX CN2 7. Code Examples CS TX RX SCK RX C1 VBUS SDO SCL 100nF Once you have done all the necessary SDI SDA R1 PLUS PLUS +3.3V +5V 4K7 preparations, its time to get your click GND GND U1 board up and running. We have provided TX 1 8 J2 R VCC J4 the examples for mikroC, mikroBasic and R6 56 R/T 2 7 B RE B mikroPascal compilers on our Libstock 3 6 A VCC DE A website. Just download them and you are R5 56 R7 RX 4 5 ready to start. R3 D GND 120 J3 2K2 R4 SN75HVD12 CN3 LD1A 100K R2 MINUS PWR 4K7 MINUS .com GND 8. Support MikroElektronika oers ff Free Tech Support (www.mikroe.com/esupport) until the end of product lifetime, so if something goes wrong, we are ready and willing to help MikroElektronika assumes no responsibility or liability for any errors or inaccuracies that may appear in the present document. Specification and information contained in the present schematic are subject to change at any time without notice. Copyright 2012 MikroElektronika. All rights reserved.