Hi Bernardo, I'm using the same sonar sensor, HC-SR04. However, it has 4 pins: Supply, Trigger, Echo, Gnd. You mentioned that you used the sonar with the second board attached where 3 pins come out. May I know the details about this second board? I can't seem to make the 4-pin sensor work with Pixhawk. Any suggestions? Thanks! Bernardo said:
Hi :) cool that the sonar works on APM. What is the A1 pin for the Pixhawk?? I'm reading through the WiKi but there is no mention how to connect the HC-SRo4 to the Pixhawk. I use the sonar with the second board attached where 3 pins come out. The sonar shows a red led but no numbers in MP. I connect to the ADC 3.3 V plug in the middle. Is that ok?
I also want to connect HC_SR04 with Pixhawk. The HC-SR04 that I have has 4 pins : 5V Supply, Trigger pulse Input, Echo pulse output, Ground. Can you please help me understand how I can connect this with pixhawk? Did you make any changes in ardupilot or HC_SR04 driver's code also to make it work?
sorry - I have trouble connecting to this forum, veeeeery slow and the html mode (menue does not show up) and also the upload-browse option is not there (pics) ?????
Replies
:) no special name for the board. It is sold already together as one unit with the HC SR04.
At the moment I saw on on EBay
----> http://www.ebay.com/itm/APM2-Ultrasonic-Module-HC-SR04-for-RC-APM-2...
http://www.ebay.com/itm/APM2-Ultrasonic-Module-HC-SR04-for-RC-APM-2...
here you have the two boards together an the 3 pin analogue signal for APM and Pixhawk ;)
Angelica Crespo said:
Thank you so much, Bernardo! May I know the name of the additional board attached to the Sonar? What is it called?
Bernardo said:
..........more pics: hope this helps a little :)
R0019301.JPG
sonar ww.jpg
Hi Angelica,
the APM, Pixhawk, Pixhack, CUAV and similar FC from this series needs a special signal that is provided through
a small additional board attached to the Sonar you have.
It is available from RC stores, China suppliers and from EBay as a set..
Please see the attached images.
R0019295.JPG
R0019296.JPG
R0019297.JPG
Hi Bernardo, I'm using the same sonar sensor, HC-SR04. However, it has 4 pins: Supply, Trigger, Echo, Gnd. You mentioned that you used the sonar with the second board attached where 3 pins come out. May I know the details about this second board? I can't seem to make the 4-pin sensor work with Pixhawk. Any suggestions? Thanks!
Bernardo said:
trying the same with hcsr04 and apm 2.52 is there a known work around yet? any advice on how to hook up the 4 pin sensor would be greatly appreciated
Hi Bernardo,
I also want to connect HC_SR04 with Pixhawk.
The HC-SR04 that I have has 4 pins : 5V Supply, Trigger pulse Input, Echo pulse output, Ground.
Can you please help me understand how I can connect this with pixhawk?
Did you make any changes in ardupilot or HC_SR04 driver's code also to make it work?
Hi :)
ok, today i can inform that the module works now!
Pin 14 did it.
Many thanks to Juan - you lead me to success :D
(YAY!!! ) :D
It's only me ?
today it's normal again , quick connection to the DIY forum :) - perhaps issues in DE 'cause of the rainstorms .....