> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# MikroElektronika RS485 Click 3.3V

**Type:** Product page · **SKU:** CE05417 · **Brand:** [MikroElektronika](https://core-electronics.com.au/brands/mikroelektronika-australia)
**Page:** https://core-electronics.com.au/mikroelektronika-rs485-click-3-3v.html ([markdown](https://core-electronics.com.au/mikroelektronika-rs485-click-3-3v.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## How to buy

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## Description

RS485 click 3.3V carries the SN65HVD12 half-duplex, RS-485 transceiver from Texas Instruments. It is designed for balanced data transmission and complies with EIA standards RS-485 and RS-422. The click is designed to run on a 3.3V power supply. RS485 5V click communicates with the target microcontroller over UART interface, with additional functionality provided by the PWM pin on the mikroBUS™ line.

### SN65HVD12 features

Internal ESD protection circuits protect the transceiver bus terminals against ±16-kV Human Body Model (HBM) electrostatic discharges and ±4-kV electrical fast transients (EFT).

The SN65HVD1x half-duplex family provides internal biasing of the receiver input thresholds for open-circuit, bus-idle, or short-circuit failsafe conditions, and a typical receiver hysteresis of 35 mV

### How the click works

There are four screw terminals on the board Those marked with “+” and “-” are RS485 differential high and differential low communication lines. We added two more terminals for VCC and GND reference if needed for further interfacing. Communication with the board is done using simple UART interface.

### Specifications

- Type: RS485
- Applications: Board is suitable for Low power RS-485 systems, DTE/DCE interface Packet switching, Local area networks (LNAs), Data concentration, Data multiplexers, Integrated services digital network (ISDN) and more
- On-board modules: SN65HVD12 differential line transceiver
- Key Features: On-board Bias and Termination resistors with related jumpers. Simple UART communication interface
- Key Benefits: Meets or Exceeds the Requirements of ANSI TIA/EIA-485-A
- Interface: GPIO,UART
- Input Voltage: 3.3V
- Compatibility: mikroBUS
- Click board size: M (42.9 x 25.4 mm)
 
### Pinout diagram

This table shows how the pinout on RS485 click 3.3V corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

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### Jumpers and settings

INSERT IMAGE2 HERE

If the board is the first node of the RS485 network, all three jumpers J2-J4 should be placed. If the board is a node in the middle, all jumpers should be removed. If the board is the last node of the RS485 network, place only J4 termination jumper.

### Dwonloads

- [RS485 Click 3.3V Schematic](https://download.mikroe.com/documents/add-on-boards/click/rs485-33v/rs485-33v-click-schematic-v100-b.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/c/e/ce05416-1_1_1.png)