This is a small portable RS232 – TTL converter circuit that is based on one of the most common ICs MAX232. The minimum number of components are used to operate MAX232. Additionally a +5V voltage ...

Although the communications world is dominated by USB and WiFi, many products still use RS232. While embedded controllers often feature one or more RS232 ports, they usually require signals with ttl ...

Makers, developers and hobbyists that wish they had more serial ports on their Raspberry Pi mini computer might be interested in a new Raspberry Pi UART Hat that has been created by Salicon ...

[Geordy] added a serial port to his Zipit. It uses a 3.5mm jack as the connector. He managed to include an RS232 level converter inside the case. Both components were hard to fit into the cramped ...