Search found 71 matches
- Mon Dec 02, 2019 2:04 pm
- Forum: General Discussion
- Topic: what is the purpose of the factory AP ("ESP_6C8A79")
- Replies: 5
- Views: 6402
what is the purpose of the factory AP ("ESP_6C8A79")
When you power up a factory fresh WROOM32 module (I have tested 6 so far from various suppliers, both 32 and 32D versions) it broadcasts an AP with an SSID consisting of "ESP_" and part of it's MAC address. For example, "ESP_6C8A79". If you connect a phone or pc to that AP, you are assigned an IP. u...
- Tue Nov 19, 2019 2:22 pm
- Forum: General Discussion
- Topic: OTA of factory image
- Replies: 5
- Views: 5501
Re: OTA of factory image
so what do these factory APs do? I assume they are useful for something?
- Tue Nov 19, 2019 2:14 pm
- Forum: General Discussion
- Topic: OTA of factory image
- Replies: 5
- Views: 5501
Re: OTA of factory image
These are modules from a tape and reel and also some from dev boards. they all produce the quixotic APs.
- Mon Nov 18, 2019 5:13 pm
- Forum: General Discussion
- Topic: OTA of factory image
- Replies: 5
- Views: 5501
OTA of factory image
If you power a new ESP32 from the factory, it will produce a WI-FI AP with a name like "ESP_0BE0DD". I have tried this with 6 devices, old and new. WROOM-32 and 32D. This is the default behavior before the device is programmed by the user. What can we do with this AP? I would imagine some pretty coo...
- Fri Jul 26, 2019 5:01 pm
- Forum: General Discussion
- Topic: Bluetooth SPP stops after ~150 bytes
- Replies: 3
- Views: 5577
Re: Bluetooth SPP stops after ~150 bytes
I found it. needed a 1ms delay after the tx on the windows side. Now I am getting 2k bytes through with no crashes. baud rate with 25 bytes per send is about 9600baud. Here's the working program on the windows side (esp32 side is unchanged from above): #include <stdio.h> #include <windows.h> #includ...
- Tue Jul 23, 2019 6:24 pm
- Forum: General Discussion
- Topic: Bluetooth SPP stops after ~150 bytes
- Replies: 3
- Views: 5577
Re: Bluetooth SPP stops after ~150 bytes
I also tried this on multiple devices with the same result so it is not a unit problem.
- Thu Jul 18, 2019 1:59 pm
- Forum: General Discussion
- Topic: 2 COM ports in Windows when Bluetooth SPP connects
- Replies: 3
- Views: 5812
Re: 2 COM ports in Windows when Bluetooth SPP connects
Thank you for the link. So it appears to be normal. I will need to figure out how the application will know which port to use since it varies from connection to connection. I could test both, might be able to find a register value, etc.
- Tue Jul 16, 2019 5:26 pm
- Forum: General Discussion
- Topic: Bluetooth SPP stops after ~150 bytes
- Replies: 3
- Views: 5577
Bluetooth SPP stops after ~150 bytes
I am using the ESP32 to communicate with my Windows 10 PC via a Bluetooth classic SPP profile. This creates a com port in windows. I then wrote a simple program on the windows side that tests the connection through the serial port. However, after a 100 bytes or so, the connection freezes. I have to ...
- Tue Jul 16, 2019 4:39 pm
- Forum: General Discussion
- Topic: 2 COM ports in Windows when Bluetooth SPP connects
- Replies: 3
- Views: 5812
Re: 2 COM ports in Windows when Bluetooth SPP connects
I did notice that under "Bluetooth settings" in windows, one port is listed at incoming and one is listed as outgoing. but when I connect to the correct port (whichever one it is at that time), I can send and receive. how to only get one port? the "outgoing" port seems to be the one that works. but ...
- Tue Jul 16, 2019 3:48 pm
- Forum: General Discussion
- Topic: 2 COM ports in Windows when Bluetooth SPP connects
- Replies: 3
- Views: 5812
2 COM ports in Windows when Bluetooth SPP connects
When I connect the ESP32 to my PC, I see 2 com ports in windows. I searched online for an answer. Found some examples but they showed two com ports as well. One of the ports (which one changes randomly) does not work. You have to try both. The 2 ports show up in windows device manager and at the com...