[EN] Arduino: Control robot’s movement via browser with esp8266 Part 2

Based on the previous article that uses a single esp8266 for controlling the Agent, the number of pins that the esp8266 microcontroller (as written in the MicroPython article about machine.Pin) is limited. Many of the pins are used at boot up causing unintended errors such as the wheel spinning when the system starts and stops when the system finishes booting, etc. Therefore, in this article, a microcontroller board LGT8F328P is added as shown in Figure 1, or the reader may change to other Arduino family microcontrollers, such as Arduino Nano or Arduino Uno, etc. by giving that LGT8F328P is part of the Actuator that acts as a movement in the environment. It can be commanded to go forward, backward, turn left, turn right and stop, reducing the workload of the esp8266 and making it more responsive to WiFi communication.

Figure 1 LGT8F328P is integrated into a robotic car system to control the movement