limited number of bytes? about brzo_i2c HOT 2 CLOSED

Thanks ✌️

Well, I just did not yet thought of the use case to send/receive more than 256 bytes in one write/read instruction. A first look in my code showed that it could be changed easily (I cannot test it now, but next week), so I will change this for 1.03 release.

However keep in mind: Your sketch should give the "esp8266 system" the opportunity to run from time to time. This is especially important when you need for instance wifi networking. Espressif's SDK documentation speaks of 15 msec, the arduino esp8266 community of 50 msec. Apart from this, in brzo_i2c reads and writes have all the interrupts disabled. Thus, single writes and reads should not take too long. See also the wiki, maximum duration of reads and writes or clock stretching.
Therefore, depending on your use case, it might work well to send some big chunk of bytes at once, or you would neet to split it up into smaller chunks and use either yield() or delay(.) between consecutive brzo transactions.

btw: The MCP4725 supports fast mode up to 400 kHz SCL speed. But since it is a i2c high speed device, it might work to increase fast mode speeds up to 800 or even 1000 kHz (i.e. fast mode plus speeds). But then you need to decrease the value of the pull-up resistor down to 1 k ohm. If you have a scope, check the timings.

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Added to Release 1.1.0

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