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esp8266-ebus v3.0 #24

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Sethach opened this issue Feb 15, 2023 · 3 comments
Open

esp8266-ebus v3.0 #24

Sethach opened this issue Feb 15, 2023 · 3 comments

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@Sethach
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Sethach commented Feb 15, 2023

I have the ebus adapter with version 3.0, which is not properly working at my vaillant system. I assume it is because the bus does not give enough power.
Is it possible to attach the v3.0 to a seperate power supply? I can not find any documentation on the version3.0
thank you
@danielkucera
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Hi,
on v3, TP2 is the same but:

  • there is no TP3 but you can use BUS GND for GND
  • there is no JP1 so you need to use 24V power supply or remove D4 for use with lower voltage supply

image

@Sethach
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Sethach commented Feb 15, 2023

Thank you!
is it possible to supply the board with 3.3V over the programming interface?
By the way I am on the inform list for the latest version...

@danielkucera
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It MAY work but I would not recommend it.

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@danielkucera @Sethach