Hi everyone,
I'm new here, just bought an Arduino Uno and trying to use ultrasonic sensor on it.
Problem is it seems the jumper wires not sitting too well on the Arduino GPIO, they are kinda loose and I only get good reading if I "hold" them in a certain position but that isn't 100% either.
Anyone know of that problem ? hope i'm not the only one ? the jumper cables bought from ebay for 1$. they sit well on the ultrasonic sensor male pins, but are loose on the Arduino female GPIO sockets.
Thanks for any help and suggestions to overcome this problem
Grumpy_Mike:
Those jumper lead ends do not look long enough to me.
I use leads with two female ends and two rows of header pins soldered together.
Following that, I tried cutting some wires and attaching them to the female end, so its longer than the male jumper pin. still same results.
I'm not sure what you meant about soldering pins together - no one use normal jumper wires straight "from the box" ? i'm sorry if I sound newbie but I am in that aspect
That's a neat trick (you could also use the long pin header instead, and just slide the plastic up, so you don';t have to solder two pieces together) - I hadn't thought of that.
It's a real shame the male dupont connectors are utter garbage - but they are. The female ones work very well, while the male ones are really flaky.
The only snag with sliding the plastic is that you can sometimes get the pins at different heights in different sides. But you need the pins to be longer than just the standard header.
Yes you can get headers with longer pins on both sides and I do have some of those. But that trick is good when you don't want to stock too many different parts.
It will take some time to arrive though, is there any other solution that can relieve my hand from hand from playing with the wires as the program runs or this is what is typically used in Arduino projects ? Thanks again !
any other solution that can relieve my hand from hand from playing with the wires as the program runs
Never never ever connect up circuits when the Arduino is powered up. This is the best way to destroy electronic components and your Arduino.
Personally I never use solderless bread board because the connections are so unreliable. I always solder or use plug and sockets. One thing I have is some headers that I can connect to switches, LEDs and pots. These are soldered onto the pin headers and then covered with hot melt glue. I often mark one end of the header pins with white typing correcting fluid so that I know what way round to connect them.
I also have a header with the I2C pins and pull up resistors brought out to another connector for doing prototype work with I2C devices.
Attached are some pictures that show these things.
