As everything now is based on Internet of Things (IOT) this 4×4 IOT based RC Car uses a NodeMCU ESP-12E as its primary Control unit. The NodeMCU has an inbuilt Wi-Fi Module -ESP8266-12E which connects to the Wi-Fi Access Point. The connection to Wi-Fi network is established by hard coding the “ssid” and “password”, later stages WiFi scanning is implemented.
The project makes use of an application called “BLYNK”. Blynk is a Platform with iOS and Android apps to control our NodeMCU over the Internet. The blynk app links with your WiFi Network by generating an Authentication code. This Authentication code must be specified in the programme. This programme is then uploaded to the NodeMCU module.
The RC Car consists of four DC motors which are driven by two motor driving circyuits, powered with a low voltage of 5v. The RC Car is Programmed to move in all four directions.