Hi - I’m completely new to this. I bought a K8055 USB Interface board, a soldering iron, a couple of small motors, etc. with the hope of getting a very basic idea up and running.
Can someone point me in the right direction? I want to hook up a small motor to the analog outputs and be able to control the speed of the motor using the interface software supplied with the board. Just can’t seem to make it work
I thought initially that I’d get power from the board but I don’t think that’s the case? I tried to hook a battery into the circuit with no joy. (motor runs fine when hooked directly to the battery).
I am in need of the answer to this. Using a volt meter I am getting close to 5V out of the GND and DAC1 terminals. I have a 12vdc solenoid that will engage with as little as a 1.5 v AA battery. So I connect up my solenoid to those terminals expecting it to engage. However I’m not getting any effect. I admit I’m a total newb to this and may be missing some very basic information about how it all works. Can someone walk me through a basic how to connection of a dc motor or solenoid? Ultimately I’d like to connect through the digital terminals, so if you have the steps to make that work that would be wonderful too. Thanks
There is 1k5 series resistor at the analog output of the K8055.
It can output max 3mA to the load.
Maybe your solenoid needs more current.
Check your solenoid’s resistance. You may connect it to the digital output if the current through the solenoid is less than 100mA.
See the connection scheme on page 22 of the manual.
With a battery connect its plus pole to the CLAMP and minus pole to GND.
Connect the solenoid between CLAMP and one digital output (e.g. O4 as in the example).
I’m surprised that none of the “Vel” men have pointed you in the direction of this kit: K8004 DC TO PULSE WIDTH MODULATOR.
I’ve used them in a project to control model railway engines but you’ve got a lot of flexibility. The software that I wrote had the ability to limit the maximum motor speed and set the starting voltage so that one click always managed to overcome the starting resistance.
Excellent, thanks. What was not clear to me was how to hook up the external power from my 9v battery. So if anyone other newbs out there are reading this. The key was to hook up the external battery as described above, and then connect one wire from the motor to the CLAMP and the other to the digital Port of your choice. Thanks for the help and I’ll take a look at that other board as well.
