Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Altera MAXSONAR LVEZ1 sensor

Hi I want to cnnect the LVEZ1 sensor to the de2 board. I have read that the sensor has a serial rs232 format output. But i am not sure how i can connect these to the rs232 module on the de2 boa...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Hi there,

according to the link you sent, the sensor has RS-232 dataformat with 0 to VCC physical levels (thus violating the full RS-232 specification). In fact this allows direct connection to the DE2, just ensure to use the I/O voltage as supply voltage for the sensor to match levels...

In fact you just have to look to the UART tutorial / the description at fgpa4fun.com seems to be ok as well.

As an option you could use the PWM output at PW as described in the first link (I would generate e.g. a 14.7us clock signal and count the pulses per pulse of the sensor. The result would be the distance in 0.1inch... (use 1.47us clock for 1/100 inch resolution....).

HTH