I have an SMD ATTINY that I'm using for a project. Attached to it are 3 I2C devices. When programming it using an Arduino as an ISP, can I have those devices attached? Ie, do I have to program the ATTINY and then solder it on my board or can I solder it and the program (and re-program if necessary).
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Yes, the slave devices shouldn't respond unless addressed. When programming, data will obviously be on the lines however the probability of this data accidentally containing the right sequence to correctly query a slave is minimal.
D.Drew
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