Registers a function to be called when a slave device receives a transmission from a master. Parameters handler: the function to be called when the slave receives data; this should take a single int parameter (the number of bytes read from the master) and return nothing, e.g.:void myHandl...
void attachClick(parameterizedCallbackFunction newFunction, void *parameter); /** * Attach an event to be called after a double click is detected. * @param newFunction This function will be called when the event has been detected. */ void attachDoubleClick(callbackFunction newFunction); void ...
handler: the function to be called when the slave receives data; this should take a single int parameter (the number of bytes read from the master) and return nothing, e.g.: void myHandler(int numBytes) Returns None Wire.onRequest(handler) 注册一个函数,当主机向从机请求数据时,此函数被...
When things go wrong, it can be useful to print additional information. As of 2.3.2-alpha, this is possible with any assertXXX() method by adding an additional third parameter [footnote] to the assert. For example, test(cases) { int x=3; for (int k=0; k<4; ++k) { assertNotEqu...
the result of `DEBUGREF` [void loop() @ line 13]: This is the result of `DEBUGFN` [0:2:11.085]: This is the result of `DEBUGTIME` a = 1, b = 2, c = 3 log10(1000) - 2 = 1.00 millis() = 131085 Serial.read() = -1 [int someFunction(int) @ line 26]: parameter =...
The function takes a single parameter: the desired communication speed. You must use the same speed for the sending side and the receiving side, or you will see gobbledygook (or nothing at all) on the screen. This example and most of the others in this book use a speed of 9,600 baud...
Whenever the Arduino Nano can't keep up and exceeds the parameter limits, the MPPT charging stops as it tries to recover. This kept on triggering often and disrupts my energy harvest. On the next step I'll show you a cheaper and faster alternative. The ATmega328P used in an Arduino ...
After trying other options I came to the conclusion that the fastest operation of the I/O functions can be obtained if they get the information they need as their input parameter. This information is the address of the register, which controls the port and the bit mask of ...
For debugging I added the capability to output in raw hex. I was going to remove it once I had the distance calculation and decimal point code figured out, but I left it in place as a compile-time parameter just in case that would become handy in the future. Sending just hexadecimal da...
Accepts a pin number as a parameter, and returns the HIGH or LOW constant. digitalRead()从数字引脚读取值。 接受引脚号作为参数,并返回HIGH或LOW常数。 digitalWrite() writes a HIGH or LOW value to a digital output pin. You pass the pin number and HIGH or LOW as parameters. digitalWrite()...