How to make low cost distance measurement sensor? | Electronics › Electronics › How to make low cost distance measurement sensor? This topic has 1 reply, 2 voices, and was last updated 10 years, 11 months ago by AJISH ALFRED. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts November 29, 2011 at 11:25 am #1420 LIMParticipant hi, i need advices on how to make a low cost distance measurement sensor. the measurement range will be from 3 cm to 20cm. it will be best if the sensor is robust and almost immune to the external noise of the environment. thanks in advance April 10, 2012 at 7:10 pm #7410 AJISH ALFREDParticipant You better use ultrasonic ranging module HCSR04 Use the following link for datasheet http://jaktek.com/wp-content/uploads/2011/12/HC-SR04.pdf Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In