Hi,
Is it possible to connect BME280 to Sonoff SC instead of TH11?
I see only one free GPIO when I chose Sonoff SC.
ilvenos
All 10 comments
You would have to find the other GPIOs and modify the template. Unless you are really good with a soldering iron, it would be easier to get another device.
Frogmore42
on 15 Aug 2018
The TH11 is connected to the other MCU, so you can't replace it.
Frogmore42
on 15 Aug 2018
@ilvenos
You can use the RX and TX in the SC model.
On the same interface which is used for uploading the tasmota firmware.
I use the same sensor (BME280) for it and configured it in module configuration.
I build the senor inside black Lego stones and used black cable and it looks cool.
Use RX as SDA and TX as SCL, select these settings in module configuration.
Save these changings.
Then power it down, never connect sensors while on power, connect the
sensor and power it up again (sensor to +3,3V, RX, TX and GND). Works like a charm!
The free GPIO i use for the DHT12/AM2302 to check the different values for tests.
It works perfect all togehter and the is enough power because the external 5V power supply.
The internal DHT11 is still connected. You can't change the internal DHT11 without changing
the coding in atMega chip. Sample program can be found in the iTead wiki for ik.
BTW: i use three (3) of these SONOFF SC models in the house.
mike2nl
on 15 Aug 2018
@mike2nl could you show me Your modules configuration in tasmota?
When I chosen Sonoff SC I have only one GPIO (GPIO2).
if I understand you correctly, you didnt chose Sonoff SC from tasmota settings?
ilvenos
on 15 Aug 2018
@ilvenos
no issue but you have to wait that i'm at home. Round the afternoon i'm
back and i will made some screenshots....
mike2nl
on 17 Aug 2018
@ilvenos
Hi,
Have you managed to solve your issue?
ascillato
on 24 Aug 2018
@ascillato could you give us more time?
I'm still waiting for @mike2nl 's answer.
ilvenos
on 24 Aug 2018
Yes, there is no problem with that. Just keeping track of the issue. :+1:
ascillato
on 24 Aug 2018
@mike2nl help please
ascillato2
on 31 Aug 2018
Hi,
@ilvenos
Please, try to contact mike in discord chat.
As this issue is on HOLD since 17 ago, I'm closing it temporarily until you have time to continue with it. Please, as soon as you have more information/questions, ask to reopen this issue and we gladly continue with it. Thanks.
ascillato2
on 3 Sep 2018
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Most helpful comment
@ilvenos
You can use the RX and TX in the SC model.
On the same interface which is used for uploading the tasmota firmware.
I use the same sensor (BME280) for it and configured it in module configuration.
I build the senor inside black Lego stones and used black cable and it looks cool.
Use RX as SDA and TX as SCL, select these settings in module configuration.
Save these changings.
Then power it down, never connect sensors while on power, connect the
sensor and power it up again (sensor to +3,3V, RX, TX and GND). Works like a charm!
The free GPIO i use for the DHT12/AM2302 to check the different values for tests.
It works perfect all togehter and the is enough power because the external 5V power supply.
The internal DHT11 is still connected. You can't change the internal DHT11 without changing
the coding in atMega chip. Sample program can be found in the iTead wiki for ik.
BTW: i use three (3) of these SONOFF SC models in the house.