DuaneB:
They look great, now if you offer a version of the rotary encoder model pre loaded with this you will make a lot of people happy -
RCArduino: Lap Timer Build Along Part 3 - Timer Based Transponder
What do you sell them for ? are they pre-assembled and will you be including the rotary encoder ?
If its yes, yes and yes I might convert the lap timer to run on them, less soldering and sourcing of parts will open the project up to more users
Duane B
Duane B,
The kit is this item:
http://www.inmojo.com/store/liudr-arduino-and-physics-gadgets/item/rotary-encoder-keypad-kit-20x4-lcd/
or this item:
http://www.inmojo.com/store/liudr-arduino-and-physics-gadgets/item/rotary-encoder-keypad-kit-16x2-lcd/
If you want to use your own LCD, you just need to get one of these kits. The kits don't include LCDs. They both include rotary encoder and everything else except I don't have knobs yet. You can turn the shaft pretty easily without a knob. There will minimal amount of PCB soldering, very easy to do. In the pictures I used white connectors but that took forever to do. I was doing that so I can share one rotary encoder between the 20X4 kit and 16X2 kit between picture shots. The best way to do these connections is to do wire wrapping. Very easy with the male pins.
If you want to get the phi-panel LCD backpack too, featured on the diagram, here is a link:
http://www.inmojo.com/store/liudr-arduino-and-physics-gadgets/item/serial-lcd-back-pack---phi-panel/
This will give your main circuit the ease of mind. You don't have to keep checking key input with loops or interrupts. You can do a while loop with serial.available() which takes very little time. Then you can focus on your lap time with the sensors.
BTW, outstanding handling around the bends. I don't have RC cars but I felt it was amazing to control something this small this quickly with a high center of gravity yet rounding the bend so fast that it doesn't roll over or slide.
BTW, If I can get this line of products rolling, I will be able to order larger quantity of laser cutting face plates and more of those expensive buttons with caps. That will reduce the cost of the kit in the future. If you want, I can also make some custom back plates so you will have a top and bottom plate, where you can mount your circuit on the bottom plate and display+rotary encoder+ keys on the top.