When made various interactive Arduino works often use some commonly used sensors or circuit module. For those who are familiar with electronic circuit, bread plate or universal plate structures, some simple module circuit is can, of course, but for those who are not familiar with or a little more complicated circuit, seems to be not so fit.

To use this extension board can be easily connected with some commonly used analog sensor, such as light sensors. With this extension support plate and the corresponding circuit module, we only need to use special cables connect the corresponding sensor module with Arduino, circuit part is done. The specific details the circuit are accomplished by the corresponding sensor module, so we need to consider is how to write a corresponding program to read in the Arduino pass these sensor data.

V4 version also USES the design of stackable, can used with our other expansion board. Also changed the line sequence of digital sensor interfaces, more convenient connection of various sensors can connect directly to a servo motor