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it means suppose i forgot to write wire. beginTransmission, does that mean I can't execute wire.endTransmission? Because it looks like the latter is depended on the first? That is, wire. endTransmission isn't an independent function.

Sayan
– Sayan

2022-01-23 17:26:09 +00:00
Commented Jan 23, 2022 at 17:26
2

Wire.beginTransmission() primes the library for a master write transaction. So you need it before calling Wire.endTransmission(). What makes you think that any of these functions are independent? They are working for the same hardware interface. You need to call them just as the library supposes you to.

chrisl
– chrisl

2022-01-23 17:31:48 +00:00
Commented Jan 23, 2022 at 17:31

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