Problems with Wio Terminal connecting to Blynk and RTL8720 firmware

ralphjy · November 9, 2020, 10:10pm

I’m having some issues connecting the Wio Terminal to Blynk using WiFi and Bluetooth. My first question is - has the firmware been fixed so that both WiFi and Bluetooth work with the same firmware?

I was running the Blynk WiFi temperature example and it was working correctly. I tried running the BLE iBeacon test and it didn’t work. I then updated the firmware to v2.0.1 (erased and flashed successfully) and now the iBeacon test is working. However, now the Blynk WiFi test no longer works (does not connect). I tried running the WiFi scan example and that appears to be working.

I tried to run the Blynk BLE program to control the NeoPixels and that won’t compile. It can’t locate the Seeed_erpcUnified.h file. I’ve installed all of the required libraries per the WiKi.

Ralph

Baozhu · November 9, 2020, 11:49pm

https://www.youtube.com/watch?v=mltJ0D0oppI&feature=youtu.be @ralphjy I hope this video tutoria could help you .

ralphjy · November 10, 2020, 6:41pm

Any idea where the Seeed_erpcUnified.h file is located? I can’t compile the BLE examples for this project https://www.hackster.io/SeeedStudio/connecting-wio-terminal-to-blynk-f97d4d.

I was able to run the the WiFi and BLE scan example that was at the link you posted.

I had to change the Blynk WiFi example to change the include file from AtWiFi.h to rpcWiFi.h and now it works. The example at the Hackster link is also incorrect.

ansonhe97 · November 11, 2020, 1:21am

Hi @ralphjy

We have updated the library for rpcBLE, please remove the #include Seeed_erpcUnified , you may also check here for more reference:

github.com

ansonhe97/blynk-library/blob/master/examples/Boards_Bluetooth/WioTerminal_BLE/WioTerminal_BLE.ino#L32



 Warning: Bluetooth support is in beta!
*************************************************************/

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial

#define BLYNK_USE_DIRECT_CONNECT

#include <BlynkSimpleWioTerminal_BLE.h>
#include <rpcBLEDevice.h>
#include <BLEServer.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "YourAuthToken";

void setup()
{
 // Debug console
 Serial.begin(9600);

ralphjy · November 11, 2020, 4:27am

Hi Anson,

It now compiles but for some reason it won’t stay connected. I tried getting a new token and I’ve also tried the Bluetooth device in addition to BLE.

Blynk

Ralph

ralphjy · November 11, 2020, 4:56am

Sorry, it looks like an issue running on my Android tablet. I’m running Android 8.1 and Blynk 2.27.19. Must just be an issue with BLE/Bluetooth because the WiFi examples are working.

I just tried it on my iPad and it’s working.