Introduction
Serial communication is the process of sending data one bit at a time, sequentially, over a communication channel or computer bus.
For evive, serial pins are used for communication between evive and a computer or sensors or any other devices. It has three serial ports available:
- Serial0 on pins 0 (RX0) and 1 (TX0),
- Serial2 on pins 17 (RX2) and 16 (TX2), and
- Serial3 on pins 15 (RX3) and 14 (TX3).
While communicating with the computer or for uploading Arduino sketch, evive uses serial port 0 via USB. Thus, if you use these functions, you cannot also use pins 0 and 1 for digital input or output. Communication with HC05 (Bluetooth), ESP-12e (or 12f) ESP8266 (WiFi) or Xbee is done via serial port 3. Do not use digital pins 14 and 15 while using any of the three devices.
Note: Arduino MEGA has Serial port 1 on pins 19 (RX1) and 18 (TX1), but in evive, pin 19 is used for Navigation Key/Joystick, so we cannot use Serial port 1.
Serial Communication Blocks in PictoBlox
Serial communication blocks are available in communication extension.
| Block | Function |
|---|---|
 | The block set the baud rate of the selected serial port. |
 | The block reports, if there is any data available on the selected serial port. If data is available, then it returns true, else false. |
 | The block reports the data available in the queue on the selected serial port. It reports one character at a time. |
 | The block sends the string message on the selected serial port. |
