🔹 Overview of TTL to RS232 Converter Module
The TTL to RS232 Converter Module is designed to convert logic-level UART signals (TTL) into standard RS232 voltage levels. It uses the MAX3232 IC, which ensures dependable and bidirectional serial communication between embedded systems and RS232-compatible devices.
🔹 Why Use a TTL to RS232 Converter Module
Many microcontrollers like Arduino, ESP32, STM32, and Raspberry Pi use TTL-level UART communication, while industrial equipment such as PLCs, modems, and sensors use RS232 standard. This converter acts as a bridge between both systems, enabling stable data transmission.
⚙️ Key Features of TTL to RS232 Converter Module
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Built around the reliable MAX3232 IC
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Supports 3.3V and 5V logic levels
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Fully compatible with Arduino, ESP32, STM32, Raspberry Pi
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Compact and easy to mount with DB9 Female connector
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Simple 4-pin interface: VCC, GND, TXD, RXD
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High signal integrity and low power consumption
📐 Technical Specifications
| Parameter | Description |
|---|---|
| Operating Voltage | 3.3V to 5V |
| Communication Type | RS232 ↔ UART (TTL) |
| Chipset | MAX3232 |
| Connector | DB9 Female |
| Operating Temperature | -40°C to +85°C |
| Dimensions | Approx. 42mm × 33mm |
⚡ Applications of TTL to RS232 Converter Module
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Serial communication between microcontrollers and PCs
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Industrial automation and PLC interfacing
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Connecting GPS modules, sensors, or modems
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Debugging UART signals via RS232
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Embedded systems requiring RS232 protocol conversion
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