8X8 LED DOT Matrix Module with MAX7219 ESP-MOD and can even compensate 3

and can even compensate 3 or 4 wire RTDs for better accuracy

Four pins are used to send data

180 Degree of freedom on both axis

two general-purpose 32-bit timers

self-contained lidar system

8X8 LED DOT Matrix Module with MAX7219 ESP-MOD and can even compensate 3Wiring instructions: The left side of the module for the entrance door, the right of an exit door when the control of a single module, is sufficient input port connected per CPU When a plurality of modules in cascade, input and output CPU termination, an input terminal of the second output end of the first module of a module, t It has the first two modules of the input terminal of the three termination modules, and so on. LED color: Red, Green, Blue