T-Display TTGO ESP32 4MB (Not Solder...
Wemos® D1 R32 w/ ESP32 UNO R3 pinout
- On sale!
- -€2.44
This is a universal WIFI plus Bluetooth development board based on ESP32, integrated with ESP32-WOROOM-32 module and compatible with Arduino.
It has a hall sensor, high-speed SDIO/SPI, UART, I2S as well as I2C. Furthermore, equipped with freeRTOS operating system, which is quite suitable for the Internet of things and smart home.
If you have any questions on this product please feel free to contact us.
*Disclaimer: The images are merely illustrative.
If you are a beginner, please refer to the file Get Started with Arduino to install the ESP32 development board driver and Arduino IDE as well as the ESP32 development environment.
#include "WiFi.h" void setup(){ Serial.begin(115200); // Set WiFi to station mode and disconnect from an AP if it was previously connected WiFi.mode(WIFI_STA); WiFi.disconnect(); delay(100); Serial.println("Setup done"); } void loop(){ Serial.println("scan start"); // WiFi.scanNetworks will return the number of networks found int n = WiFi.scanNetworks(); Serial.println("scan done"); if (n == 0) { Serial.println("no networks found"); } else { Serial.print(n); Serial.println(" networks found"); for (int i = 0; i < n; ++i) { // Print SSID and RSSI for each network found Serial.print(i + 1); Serial.print(": "); Serial.print(WiFi.SSID(i)); Serial.print(" ("); Serial.print(WiFi.RSSI(i)); Serial.print(")"); Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?" ":"*"); delay(10); } } Serial.println(""); // Wait a bit before scanning again delay(5000); }
After uploading the code, the ESP32 will find nearby WIFI and print the name and signal strength via the serial port each 5s.
After uploading the code, open the serial port and we can see the wifi found by ESP32.
Download test code and drivers:
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