MySerial.print("Unknow error at address 0x") MySerial.print("I2C device found at address 0x") The code I am running is the I☬ scanner from here (which as I mentioned works perfectly with the Nano and finds the device), the blow is a modified version for interfacing the TinyWireM library instead of the Wire library: #include įor(address = 1 address < 127 address++ ) I also tried some other values in between that I thought might make sense but it won't work. I also tried T2_TWI 40 and T4_TWI 32 (as stated here), and T2_TWI 2 & T4_TWI 1 (as stated here) but no luck. My guess is that the T2_TWI & the T4_TWI values are wrong. I have made the following changes in USI_TWI_Master.h: #define SYS_CLK 8000.0 // was 1000.0 I have made the following changes in USI_TWI_Master.cpp: #define F_CPU 8000000UL // was 1000000UL To run at 8MHz, #defines in USI_TWI_Master.h /. The official documentation for the TinyWireM library (at the Arduino playground website) states that:īy default the I2C master library (TinyWireM) is set to run at 1MHz.
I would state in advance that the I☬ chip works perfectly with Arduino Nano, that I am using the Arduino IDE v1.5.6-r2, using the arduino-tiny core (from here) and that until now I had no special issues working at 8MHz. Hello fellow Arduino enthusiasts, I am trying to make the ATTiny85 talk I☬ with a MMA7660 breakout board I have (it's an accelerometer, this is a follow up question to my previous one).
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