Arduino Quick Start
2. Devices & Examples
3. M5Unified
4. M5GFX
5. Extensions & Examples
Unit
Atom DTU
Tab5 Wi-Fi
Tab5 Wi-Fi related example.
Example
Compilation Requirements
- M5Stack board manager version >= 3.2.2
- Board selection = M5Tab5
- M5Unified library version >= 0.2.7
- M5GFX library version >= 0.2.8
Wi-Fi STA / AP
cpp
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#include <Arduino.h>
#include <M5GFX.h>
#include <M5Unified.h>
#include <WiFi.h>
#define SDIO2_CLK GPIO_NUM_12
#define SDIO2_CMD GPIO_NUM_13
#define SDIO2_D0 GPIO_NUM_11
#define SDIO2_D1 GPIO_NUM_10
#define SDIO2_D2 GPIO_NUM_9
#define SDIO2_D3 GPIO_NUM_8
#define SDIO2_RST GPIO_NUM_15
const char *ssid = "ssid";
const char *password = "password";
void setup()
{
M5.begin();
Serial.begin(115200);
M5.Display.setFont(&fonts::FreeMonoBoldOblique24pt7b);
WiFi.setPins(SDIO2_CLK, SDIO2_CMD, SDIO2_D0, SDIO2_D1, SDIO2_D2, SDIO2_D3, SDIO2_RST);
// If you select the M5Tab5 board in Arduino IDE, you could use the default pins defined.
// WiFi.setPins(BOARD_SDIO_ESP_HOSTED_CLK, BOARD_SDIO_ESP_HOSTED_CMD, BOARD_SDIO_ESP_HOSTED_D0,
// BOARD_SDIO_ESP_HOSTED_D1, BOARD_SDIO_ESP_HOSTED_D2, BOARD_SDIO_ESP_HOSTED_D3,
// BOARD_SDIO_ESP_HOSTED_RESET);
// STA MODE
WiFi.mode(WIFI_STA);
M5.Display.println("WiFi mode set to STA");
WiFi.begin(ssid, password);
M5.Display.print("Connecting to ");
// Wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(500);
M5.Display.print(".");
}
M5.Display.println("");
M5.Display.print("Connected to ");
M5.Display.println(ssid);
M5.Display.print("IP address: ");
M5.Display.println(WiFi.localIP());
// AP MODE
// WiFi.mode(WIFI_MODE_AP);
// Serial.println("WiFi mode set to AP");
// WiFi.softAP(ssid, password);
// Serial.println("AP started");
// Serial.print("IP address: ");
// Serial.println(WiFi.softAPIP());
}
void loop()
{
}
Wi-Fi Scan
cpp
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#include <Arduino.h>
#include <M5GFX.h>
#include <M5Unified.h>
#include <WiFi.h>
#define SDIO2_CLK GPIO_NUM_12
#define SDIO2_CMD GPIO_NUM_13
#define SDIO2_D0 GPIO_NUM_11
#define SDIO2_D1 GPIO_NUM_10
#define SDIO2_D2 GPIO_NUM_9
#define SDIO2_D3 GPIO_NUM_8
#define SDIO2_RST GPIO_NUM_15
void setup()
{
M5.begin();
Serial.begin(115200);
M5.Display.setFont(&fonts::FreeMonoBoldOblique9pt7b);
WiFi.setPins(SDIO2_CLK, SDIO2_CMD, SDIO2_D0, SDIO2_D1, SDIO2_D2, SDIO2_D3, SDIO2_RST);
// If you select the M5Tab5 board in Arduino IDE, you could use the default pins defined.
// WiFi.setPins(BOARD_SDIO_ESP_HOSTED_CLK, BOARD_SDIO_ESP_HOSTED_CMD, BOARD_SDIO_ESP_HOSTED_D0,
// BOARD_SDIO_ESP_HOSTED_D1, BOARD_SDIO_ESP_HOSTED_D2, BOARD_SDIO_ESP_HOSTED_D3,
// BOARD_SDIO_ESP_HOSTED_RESET);
}
void loop()
{
M5.Display.setCursor(0, 0);
M5.Display.println("Scan start");
// WiFi.scanNetworks will return the number of networks found.
int n = WiFi.scanNetworks();
M5.Display.println("Scan done");
if (n == 0) {
M5.Display.println("no networks found");
} else {
M5.Display.print(n);
M5.Display.println(" networks found");
M5.Display.println("Nr | SSID | RSSI | CH | Encryption");
for (int i = 0; i < n; ++i) {
// Print SSID and RSSI for each network found
M5.Display.printf("%2d", i + 1);
M5.Display.print(" | ");
M5.Display.printf("%-32.32s", WiFi.SSID(i).c_str());
M5.Display.print(" | ");
M5.Display.printf("%4ld", WiFi.RSSI(i));
M5.Display.print(" | ");
M5.Display.printf("%2ld", WiFi.channel(i));
M5.Display.print(" | ");
switch (WiFi.encryptionType(i)) {
case WIFI_AUTH_OPEN:
M5.Display.print("open");
break;
case WIFI_AUTH_WEP:
M5.Display.print("WEP");
break;
case WIFI_AUTH_WPA_PSK:
M5.Display.print("WPA");
break;
case WIFI_AUTH_WPA2_PSK:
M5.Display.print("WPA2");
break;
case WIFI_AUTH_WPA_WPA2_PSK:
M5.Display.print("WPA+WPA2");
break;
case WIFI_AUTH_WPA2_ENTERPRISE:
M5.Display.print("WPA2-EAP");
break;
case WIFI_AUTH_WPA3_PSK:
M5.Display.print("WPA3");
break;
case WIFI_AUTH_WPA2_WPA3_PSK:
M5.Display.print("WPA2+WPA3");
break;
case WIFI_AUTH_WAPI_PSK:
M5.Display.print("WAPI");
break;
default:
M5.Display.print("unknown");
}
M5.Display.println();
delay(10);
}
}
M5.Display.println("");
// Delete the scan result to free memory for code below.
WiFi.scanDelete();
// Wait a bit before scanning again.
delay(5000);
}