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Re: RF Communication over ESP, BLE or other
6m? that is not distance... that is besides!
Are you sure that your modules are OK? Seems too short. Even BT does it better.
From the Annex forum, Francesco (the developer of the Annex WiFi I assume) said that it is possible with the ESP modules. Use of the SLEEP command of the interpreter will put the module to sleep for almost zero current draw. Also Wake up and transmission is fast enough, possible through input trigger (button press etc). Have to try and see how it goes.
Ioannis
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Re: RF Communication over ESP, BLE or other
For ESP, wake up could be fast but then it needs to connect via a protocol;Originally Posted by Ioannis
Using TCP type protocol, connection may take some time especially after when connection is lost and a reconnect is needed; If there is not a disconnection command, and it is a lost of connection, then is a mess.
If one ESP is operating in AP mode, and other is connecting to this AP as client, and later on, the client wakes up then, AP already had the mac of client in buffer; client will now try to reconnect. The messy pary starts there. It can not connect because AP thinks that the same MAC is already connected and does not give you access. Hello hell.
Let me re-state a statement here:
Last edited by sayzer; - 22nd May 2020 at 15:13.
"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
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Re: RF Communication over ESP, BLE or other
ESPs are not communicating on TCP protocol.
Using ESP-NOW the communication, as Francesco says, is rapid.
Have not tried it yet. I have no experience on the ESP modules and need some reading before I understand how to do any flashing, connecting etc.
I have two ESP8266 modules from Ai and hopefully will soon put it on the breadboard.
https://cicciocb.com/annexhelp/V1.41...=onudp#ESP-NOW
Ioannis
Last edited by Ioannis; - 22nd May 2020 at 21:11.
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Re: RF Communication over ESP, BLE or other
"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
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Re: RF Communication over ESP, BLE or other
this will help
https://forum.arduino.cc/index.php?topic=551310.30
Warning I'm not a teacher
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Re: RF Communication over ESP, BLE or other
Thank you Richard; It was a good video indeed.
Here is another one for ESP to ESP.
Surprising result; over 1KM comm distance.
"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
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