Serial devices to ARM LPC 2148Elbin Chacko Madappillikunnel2014-11-26T23:02:39+00:00 Home › Forums › Microcontrollers › Serial devices to ARM LPC 2148 Tagged: arm, communication. port, microcontroller, multiplex, serial This topic contains 2 replies, has 3 voices, and was last updated by -‘Nipuna Hasanka Gamage 2 years, 8 months ago. Log In Register Lost Password Viewing 3 posts - 1 through 3 (of 3 total) Author Posts November 26, 2014 at 11:02 pm #9975 Elbin Chacko MadappillikunnelParticipant How to connect more than 2 serial devices to an ARM microcontroller? or how to use a single serial port of a microcontroller for 2 devices? November 27, 2014 at 11:41 am #9976 Ligo GeorgeKeymaster You may multiplex UART using ICs such as 74HC4052 or you can program GPIO pins as UART (Software UART). November 27, 2014 at 12:03 pm #9977 -‘Nipuna Hasanka GamageParticipant Here is a small module made using IC 74HC4052, you can use the following link for reference. https://www.atlas-scientific.com/_files/_datasheets/_circuit/serial_port_connector_datasheet.pdf Author Posts Log In Register Lost Password Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic.