Forum Discussion
Altera_Forum
Honored Contributor
14 years ago2 Serial Devices on one board
Hello all, I am currently working on a project in which I need to connect two digital sensors, a Temp & Humidity sensor(SHT 15) and an accelerometer (ADXL345) both digital sensors. They also bo...
Altera_Forum
Honored Contributor
14 years agoIIRC RS232 should be +12v/-12v negative logic (-12v is a logic 1), however a lot of modern systems only drive a much lower range, possibly even +5v/0v!
However the receivers have to allow for the full voltage range.