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- RS232 to TTL Serial Interface Module – MAX3232 Chip – DB9 Connector RS232 to TTL Serial Interface Module – MAX3232 Chip – DB9 Connector




RS232 to TTL Serial Interface Module – MAX3232 Chip – DB9 Connector
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- Return & Refund Policy
- Reviews
RS232 to TTL Serial Interface Module – MAX3232 Chip – DB9 Connector
The RS232 to TTL Serial Interface Module is based on the MAX3232 transceiver IC, allowing seamless communication between RS232-level devices (like computers) and TTL-level devices (like microcontrollers). This compact, reliable module is ideal for embedded development, programming, flashing, and serial communication projects.
Equipped with a DB9 connector and 4-pin header, it’s perfect for interfacing legacy RS232 ports with modern 3.3V/5V logic devices. Whether you're working with microcontrollers, routers, set-top boxes, or GPS modules, this board ensures fast and safe signal level conversion.
🔹 Features:
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Based on MAX3232 transceiver IC
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Converts RS232 voltage levels to TTL and vice versa
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Supports 3.3V to 5.5V logic level operation
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DB9 connector on one end, 4-pin header on the other
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Compact pre-assembled PCB, easy to integrate
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Supports communication speeds up to 250 kbit/s
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Ideal for flashing, upgrading, and serial interfacing projects
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Compatible with STC, NXP, Renesas, STM32, and many other MCUs
📊 Specifications:
Parameter | Value |
---|---|
IC Chip | MAX3232 |
Operating Voltage | DC 3.3V ~ 5.5V |
Communication Speed | Up to 250 kbit/s |
Dimensions (L × W × H) | 45 × 32 × 15 mm |
Weight | 12 g |
⚙️ Applications:
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Serial communication with microcontrollers
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Flashing or upgrading routers, set-top boxes, and hard drives
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STC/NXP/Renesas/STM32 MCU programming
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RS232 serial port conversion
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Debugging, diagnostics, and embedded interfacing
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GPS and vehicle system development
📦 Package Includes:
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1 × RS232 to TTL Serial Interface Module (MAX3232 Based)
📄 Useful Link:
🖼️ Note:
Product images are for illustrative purposes only and may differ slightly from the actual product.
RETURN POLICY
Hallmark PCB Services (Indiacomps – www.indiacomps.com) reserves the right to accept products for return at its discretion. Eligibility of a product for return will be expressly mentioned on the Website page for that particular product. Only sealed and undamaged items may be returned. Any expenses incurred for the process of returning a product back to Hallmark PCB Services will be borne by the buyer and Hallmark PCB Services reserves the right to recover such cost from the buyer by any means at its disposal if the buyer does not bear the aforementioned expense.
ORDER CANCELLATION POLICY
Before Order has been Shipped
In case, customer want to cancel the order, before the order has been shipped, customer needs to pay flat 5% order cancellation charge. Indiacomps will refund the amount after charging the order cancellation fees to the customer. Generally, the refund is initiated with 2 Business days. The time taken for the amount to get credited to customer’s original payment method, depends on payment gateway, and varies from 1-7 days.
After order has been shipped
In a case where the order has been shipped and customer would like to cancel the order, then as the order would have left our premises, we cannot cancel the order. But the customer should not accept the order, and ask the courier to return to sender, without opening the parcel. The refund will be initiated within 2 business days after the parcel has been received back at our office. In such scenarios, the customer would have to pay 5% order cancellation charge, and the forward shipping charge, and return shipping charge. We will initiate the refund to customer, the balance after charging the customer for order cancellation fees, forward shipping charge, and return shipping charge. If the customer has opened the parcel, then the returned items will be verified, and the refund will be initiated after verification within 3 business days.
REFUND AND EXCHANGE POLICY
We want you to be completely satisfied with your purchase. If, for any reason, you are not happy with your products, please read our refund and exchange policy to understand the options available to you.
DAMAGED OR DEFECTIVE ITEMS
- Notification: If you receive a damaged or defective item, please contact us immediately by email and return the product within 7 days.
- Resolution: Once you report the issue, our team will work with you to resolve it promptly. Depending on the nature of the issue, we may provide a replacement. Verification of the damage or defect will be required. This process will be done within 7 days.
- Replacement: Once we receive damaged product we will process and deliver the replacement or exchange product within 6 to 7 days.
CONTACT INFORMATION
For assistance, please reach out to us at: sales@indiacomps.com