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twowire i2c library don't work with multiple instance #7894

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6leonardo opened this issue Feb 26, 2021 · 1 comment
Open

twowire i2c library don't work with multiple instance #7894

6leonardo opened this issue Feb 26, 2021 · 1 comment
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component: core component: libraries type: enhancement

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6leonardo commented Feb 26, 2021 •
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Two wire for i2c not support multi instances...

If you create multiple instance of twowire only the last one work

Originally posted by @devyte in #3063 (comment)
@6leonardo 6leonardo changed the title Please open a new issue, follow the template instructions, explain the problem with the addresses, and reference this issue. twowire i2c library nor work with multiple instance Feb 26, 2021
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6leonardo commented Feb 26, 2021 •
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The problem is that twowire use internally a static class twi..so you can create many instance of twowire but there is only one twi....

I do same changes and Now it works....it's not very beautiful code but seams to work...
I have tested with 4 gy-bme280... 2 for bus
here the patch in cores/esp8266 I
and in the library Wire
you can put the wire library in local library but for the core I must change the original files
mod_i2c_multi-bus.zip
I attach the code for test the 4 gy-bme280
gy-bme280.ino.zip

All it's started here
......

Originally posted by @6leonardo in #3063 (comment)

@6leonardo 6leonardo changed the title twowire i2c library nor work with multiple instance twowire i2c library not work with multiple instance Feb 26, 2021
@6leonardo 6leonardo changed the title twowire i2c library not work with multiple instance twowire i2c library don't work with multiple instance Feb 26, 2021
This was referenced Mar 7, 2021
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@devyte devyte self-assigned this Mar 21, 2021
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