The MAX485 TTL To RS485 Module converts TTL signal to RS485 for long range, high data rate error prone differential communication. Digital communications networks implementing the EIA-485 standard can be used effectively over long distances and in electrically noisy environments.Multiple receivers may be connected to such a network in a linear, multi-drop configuration. These characteristics make such networks useful in industrial environments and similar applications.
This converter lets you send and receive data using the RS485 network from your microcontroller. Similar to Serial TTL and RS232 interfaces, the RS485 lets you transfer data between microcontrollers and devices but with extra features! RS485 is an industry standard protocol for data transfer and provides numerous advantages.
It lets you transfer data between up to 32 devices, through the same data line over a cable length of up to 1.2km (4000ft) with a maximum data rate of 10Mbit/s. This converter is designed for office and industrial applications (non-isolated) and provides superior characteristics/features normally found only on more expensive units.
The RE and DE Pins are responsible for setting the module in Receiver or Transmitter mode.
- When the RE pin is LOW and DE pin is LOW, the Module is set in the Receiver mode.
- When the DE pin is HIGH and RE pin is HIGH, the Module is set in the Transmitter mode.
Features:
- On-board MAX485 chip
- Multiple Units can be connected to the same RS-485 bus wiring
- Input Voltage: 5V
- UART Interface
- Built in terminal resistor of 100R Ohm
- Supports point-to-multipoint connections, this converter can connect up to 32 RS485 interface devices
- Power LED Indication
- LED indicators for RX and TX
- 2.54mm Pitch interface
- Onboard then 5.08 (mm) pitch 2P terminal to facilitate RS-485 communication wiring
Driver IC | MAX485 |
Input Voltage | 5V |
Interface | UART (TTL) |
Product Dimensions | 45 x 14mm |
Operating range | -20°C to +70°C |
Product Weight | 5 grams |
Country of origin :China
Note: The header pins are already soldered to the module.