
mantici
OK i've searched this forum for this answer to no avail, here's the story.
i've soldered up my hc-sr04 exactly as it is described in the tutorial, hook it up (in this case trigger/voltage is on D6 and echo is on D7, add a ping control (not the radar, tried that too) and it always returns a value of 255.
Currently running the EZ-B off of 6 AA Alkaline batteries (Tried new ones, still no luck).
Did i get a defective hc-sr04 with my "Complete Robot Kit"?
Any ideas? I've attached a pic of my connections. Please help. *confused*
BTW, the pins didn't want to hold the solder, my 14 year old son and i worked on this and i had to do the soldering, he just couldn't get it to stick. there are no cross solder connections, i've checked and re-checked.
If you used a lot of heat trying to solder the connections you could have damaged the sensor board. You should solder components as quickly as possible and let things cool down if it didn't take the 1st time
Whats the EZ-B mounted on is it metal and shorting any connections
No chance of shorting, there's rubber gaskets under the ez-b, even so, i tested this with the ezb off the mount.
*stress*
I've now glued electrical tape over the pins of my replacements and the bottoms of other boards.
Best,
Bill
Bill