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RS232 to TTL level converter module with DB9 female

Thousands of happy customers worldwide!

This incredibly useful RS232 to TTL level converter uses the industry standard MAX3232 chip, providing 2 channels, TxD and RxD. Simply connect to ground, apply power and connect your serial data inputs and outputs.

PIC/AVR/Arduino projects
Hacking routers like the WRT54g
Adding a true RS232 port to your Raspberry Pi
Interface and programming cables

Power supply requirements - 3.0 to 5.5V DC
Number of drivers - 1
Number of receivers - 1
Maximum speed - 1Mbps
Dimensions - approx. 32mm x 40mm x 14mm
4-way header cable included (colours vary)
On board transmit and receive LEDs

Note: The two rows of header pins are identical and connected together on the board.

Datasheet for the MAX3232 IC used is available here. For 3V3 level TTL, use a 3V3 DC supply. For 5V level TTL, use a 5V DC supply.

We also sell DB9 connectors and shells, please visit our eBay shop

Money back guarantee. If you are unhappy with your purchase in any way, simply return it within 60 days for a refund.

Fair postage. Proof of posting obtained for all shipments. No packing charges. Orders received before 3 p.m. are normally posted on the same day (Mon-Fri).