remote led sign controller using crowpanel
I'm attempting to build a project that will be an automobile car roof individually addressable led sign array that is going to be housed in a car roof snap on chassis that is IP67. I'd like to use Wled with an ESP32 to control the sign out out on the car top. It would received bluetooth signals to control what will be displayed from a bluetooth interface module inside the car. I would like to use a 3.5 crowpanel to make the user interface for the person in the car. The crowpanel would send bluetooth signal depending on what button was pushed by the operator/driver inside the car. Can the crowpanel do what I'm intending to do?
Comments
Hello @Thomas
Yes, you can use Crowpanel to send and receive Bluetooth information and control the LED array outside the car. But the 3.5 inches may be a little small. Also, the resistive screen should not be sensitive enough.
I ordered a 5 inch HMI for experimental purposes . Why would the resistive screen not be sensitive enough?
Capacitive screen: uses capacitive sensing technology to work by sensing the charge change of the touching object (such as a finger). This technology makes the capacitive screen respond quickly to touch signals and can achieve fast and accurate touch operations.
Resistive screen: requires physical contact and detects the touch position through the voltage change between two conductive layers. This physical contact method requires a certain amount of pressure to work, so the response speed is relatively slow.
And because the resistive screen requires physical contact, it is more susceptible to scratches and wear, which affects its sensitivity.