SF10 and SF02 compatibility update
Laser Developer
Posts: 140
From revision 0.7 onwards the SF10 range of laser distance sensors includes a new compatibility feature that makes the analog output match the output from the SF02.
We've had a lot of questions from customers on how to set the analog output of the SF10 so that it gives the same voltage as the SF02 when they are measuring the same distance. The difference between the two products comes about because the span of the analog output from the SF10 is 2.56V whilst the span of the analog output from the SF02 is 3.30V. The SF10 now includes a new menu item that lets you switch from the standard 2.56V span to a 3.30V span. Using the 3.30V span, the output voltage of the SF10 now matches exactly that from the SF02.
While we were at it, we also added a reverse polarity option to the analog output of the SF10 specifically for customers who are controlling things upside down. One interesting case is where a quad 'copter is being used close to the roof of a building and the SF10 is measuring upwards. The control response is now reversed when compared with normal hovering so that upward thrust needs to increase when the distance from the roof increases.
We've had a lot of questions from customers on how to set the analog output of the SF10 so that it gives the same voltage as the SF02 when they are measuring the same distance. The difference between the two products comes about because the span of the analog output from the SF10 is 2.56V whilst the span of the analog output from the SF02 is 3.30V. The SF10 now includes a new menu item that lets you switch from the standard 2.56V span to a 3.30V span. Using the 3.30V span, the output voltage of the SF10 now matches exactly that from the SF02.
While we were at it, we also added a reverse polarity option to the analog output of the SF10 specifically for customers who are controlling things upside down. One interesting case is where a quad 'copter is being used close to the roof of a building and the SF10 is measuring upwards. The control response is now reversed when compared with normal hovering so that upward thrust needs to increase when the distance from the roof increases.