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The RS232 to TTL converter module based on the MAX232 IC is a compact and reliable solution for converting signal levels between RS232 and TTL interfaces. Its miniature design, measuring only 15.9 × 9.4 mm, makes it perfect for embedded systems or projects with limited space. This version does not include a SUB-D connector, allowing direct wiring via pins or cables. It ensures stable, bidirectional communication between microcontrollers such as Arduino, ESP32, Raspberry Pi, or STM32, and RS232 devices like industrial PCs, GSM or GPS modules. Thanks to the MAX232 chip, it provides safe signal conversion, low power consumption, and excellent electrical compatibility.
| Parameter | Value |
|---|---|
| Main chip | MAX232 |
| Function | Signal level conversion between RS232 and TTL |
| Type | Miniature, no SUB-D connector |
| Supply voltage | 5 V DC |
| Interface | RS232 / TTL bidirectional |
| Communication speed | Up to 120 kbps |
| Dimensions | 15.9 × 9.4 mm |
| Weight | ≈ 1 g |
| Compatibility | Arduino, ESP32, STM32, Raspberry Pi and other microcontrollers |
