Salman Faris
Published © MIT

The New Wio Terminal eRPC Firmware

Seeed Wio Terminal have new WiFI and Bluetooth Firmware based on eRPC a.k.a Embedded Remote Procedure Call that supports 5Ghz WiFi and BLE.

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The New Wio Terminal eRPC Firmware

Things used in this project

Hardware components

Seeed - Wio Terminal
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Software apps and online services

Arduino IDE
Arduino IDE
Arduino Web Editor
Arduino Web Editor
Arduino IoT Cloud
Arduino IoT Cloud

Story

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Code

WiFi and BLE Scan

C/C++
This Sketch is a combination of WiFi Scan and BLE Scan example provided by SeeedStudio
/*
    This Sketch is a combination of WiFi Scan and BLE Scan example provided by SeeedStudio
*/
#include "rpcWiFi.h"
#include <rpcBLEDevice.h>
#include <BLEScan.h>
#include <BLEAdvertisedDevice.h>

int scanTime = 5; //In seconds
BLEScan* pBLEScan;

class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
    void onResult(BLEAdvertisedDevice advertisedDevice) {
      Serial.printf("Advertised Device: %s \n", advertisedDevice.toString().c_str());
    }
};

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);

  BLEDevice::init("");
  pBLEScan = BLEDevice::getScan(); //create new scan
  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
  pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
  pBLEScan->setInterval(100);
  pBLEScan->setWindow(99);  // less or equal setInterval value


  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("");

  BLEScanResults foundDevices = pBLEScan->start(scanTime, false);
  Serial.print("Devices found: ");
  Serial.println(foundDevices.getCount());
  Serial.println("Scan done!");
  pBLEScan->clearResults();   // delete results fromBLEScan buffer to release memory
  delay(2000);

  // Wait a bit before scanning again
  delay(5000);
}

Credits

Salman Faris

Salman Faris

17 projects • 332 followers
Maker | Hardware Hacker | Electronics Enthusiast

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