RS485 to TTL Module (supporting EIA-485 standard) is 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.
APPLICATIONS
- A multi-drop wired communication system requires multiple nodes to talk to each other.
- Long distance error prone wired communication
- High data rate wired communication
MAX485 IC
- This IC will take RS232 signals and perform the voltage level conversions required to turn them into 485 signals.
PIN-OUT
- RO – Receiver out
- RE – Receiver enable (enabled when this pin is LOW)
- DE – Driver enable (enabled when this pin is HIGH)
- DI – Driver in (the transmitter pin)
- GND – Ground (0V)
- A – Connect to pin A of the other 485 IC
- B – Connect to pin B of the other 485 IC
- Vcc – Power, in my case +5V
SPECIFICATIONS
- Features MAX485 chipset
- Working Voltage: 5V
- 5.08mm (0.2″) pitch, 2-pin terminals for RS-485 easy communication and wiring
- 4-pin 2.54mm (0.1″) pitch headers for RS485 and Power
- 4-pin 2.54mm (0.1″) pitch headers for DI, DE, RE, and RD signals
- PCB Board Size: 44 x 14mm
DOCUMENT
- Datasheet: MAX485 Chip datasheet.
- Tutorial: MAX485 TTL to RS485 Modbus Module Interfacing with ESP32
SHIPPING LIST
- 1 x MAX485 TTL to RS-485 Converter Module
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