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I²C (Inter-Integrated Circuit) is a multi-drop serial bus invented by Philips (now NXP) for communication between ICs on the same PCB, i.e. short distance.

3
votes
The problem is at TWCR |= (1<<TWINT)|(1<<TWEN); // Clear TWI interrupt flag,Enable TWI As per Atmel datasheets, the flags you set in TWCR "must be cleared by software when [what you're trying to …
answered May 19 '14 by JimmyB
2
votes
Considering @BenceKaulics' excerpt from a datasheet, the pseudo-code for an interrupt service routine (ISR) could look like this: i2c_event_isr() { switch( i2c_event ) { case master_start_bit_ …
answered Oct 24 '16 by JimmyB
1
vote
For the hardware part, look at page 6 of the datasheet and move the resistor at the 0x76 label to the 0x77 position on one of the sensors. Does anybody know how I could extend the current example …
answered Apr 6 '16 by JimmyB
0
votes
To move the address pointer to a random register location, first issue a “write” to that register location with no data byte following the commend. For example, to move the address pointer to r …
answered Jul 5 '16 by JimmyB