Meaning that instead of using pololus ToF1.readReg(0x04F) I now use my own I2Cread(0x04F). Unfortunately that didn’t bring any luck. Putting in a timeout functionality and using wire.available. Now I have tried to make my own modification to the pololu VL6180X library, controlling the use of the Wire functions. (Hope my english is understandable, and links now OK) : )

And and as mentioned actually works, but sometimes may be after minutes one error occurs and sketch stops. Regarding the HW (sorry for missing photo) but it is as simple as SCL-SCL SDA-SDA, also tried to noise protect two lines with grounded aluminum foil, short wires around 75 mm, not twisted, only 'trouble' being a small DC motor near by - with 3 X 0,1 uF for noise. To my understanding, looking/'searhing around', the fixing of the halting bug in the SAMD wire library has not been implemented. GitHub - freespace/SBWire: Modified Arduino Wire library which implements basic timeout. write( buffer) // 4 LSB Wire.OK, I think I understand your point about the bit flip, and must admit Im not experienced to know how the SBWire library have fixed this, but in the readme it says ' twi_stop() is called followed by twi_init()' on timeout. beginTransmission(MCP4725) // address device Wire. Val = analogRead(0) * 4 // read pot buffer = val > 4 // MSB 11-4 shift right 4 places buffer = val << 4 // LSB 3-0 shift left 4 places Wire. #define MCP4725 0圆2 // MCP4725 base address unsigned int val #include // specify use of Wire.h library

Transmits via I2C numeric values controls the output voltage on a MCP4725 DAC measured with a voltmeter. This is multiplied by 4 to a 12-bit values then written through an I2C connection produces an out voltage from 0-5V based on the pot value.Īrduino sketch for this project: mcp4725_demo.ino /* Electronics website: Reads pot on Arduino ADC0 (10-bit) then multiplies by 4. In this demo Arduino reads the value of a potentiometer connected to ADC0 which is a 10-bit value.

Arduino better wire library