We have these small voting controllers
Now they have been of use. But we want to improve the project. Issues now are the buttons wearing out, inconsistency in receiving messages and stuck to the environment of the receiver.
It uses a CC2500 and a PIC16F18344, I haven't worked with these yet.
I thought of using a WemosD1 mini (or even smaller boards if they exist) and let them all communicate thru WiFi with mqtt messages and power it with a small li-on battery and batter charge shield.
Try to make it on a PCB and figure out a casing (maybe 3D print it)
We need 400 pieces.
Is the achievable, or should we just order the same controllers again?
Something to build my self, or something to let the professionals do it? And where can I find these?
Improving the current one could also be an option, but seems the least logical option.
It's a very broad topic. But I'm hoping to start some conversation about this.
I got two more images of the current PCB that might be of use or sparks interest among readers.