My code is located at the link below.
Does anyone see anything out of the ordinary?
The TCA9548A is found in the logs but not the two BME680s.
#I'm having difficulty getting a TCA9548A to work with two BME680s.
brisk glade
sudden summit
Some suggestions.
How have you wired the BME680? Is this your own wiring? Breakout boards? The part supports SPI and I2C so I’m curious. Can’t comment on anything ESPHome specifically as I’ve only used a BME680 with a Pi Pico and my own code. Also bus frequency is unusually low. I think you should stick with the standardised “standard mode” of 100khz, which is explicitly mentioned in the datasheet. It seems unlikely that this is a problem but since the device operates by doing repeated sampling as part of its sensing mechanism, who knows. Looking at my own code I used 100Khz for my I2C clock.
tawny ocean
My code is located at the link below.
https://pastebin.com/LczmLrYz
Does anyon...
the ESPHome discord might be a better place to ask this one
brisk glade
Doh, I thought I was in the ESPHome Discord.....sorry about that.
sudden summit
Am curious what they say. 🙂
brisk glade
OK, I changed the frequency to 100kHz and one sensor started working
tawny ocean
Doh, I thought I was in the ESPHome Discord.....sorry about that.
no worries, we do handle some light esphome stuff here sometimes too but the real experts for the more technical stuff answer stuff over there
brisk glade
Understood....I found a loose solder joint for the other sensor and now it's working....so coming here by mistake wasn't so much of a mistake.
Thanks @sudden summit and @tawny ocean ...
sudden summit
Super. 🙂 They are a nifty part. Curious why you need two lol
brisk glade
HVAC curiosity....one for the return air and one for the supply air.
I want to try a differential pressure sensor at some point as well.
sudden summit
HVAC curiosity....one for the return air and one for the supply air.
Is that in the erm approved application set? 🙂 I kinda assumed the air around the sensor had to be still for accurate readings. It’s not like it’s a product you are prototyping, but still?
brisk glade
Hmm, didn't know that was an issue. I've used them in moving air applications for a few other projects with no issues....just not two with the same microcontroller.