![]() ![]() ![]() Failing that, I can send you one I wrote.ĭoes the device have its own inbuilt pull up resistors on the SCK and SDA lines? Those two lines must idle in a high state. Time for another stupid question, or two:Īre you certain there’s a device on address 0x37? Have you scanned for one at that address? If you need a scanner, then the Arduino IDE has one in File->Examples->Wire->i2c_scanner. The I2C/TWI stuff uses 7 bit addresses (even if the address fits into 6!) and depending on a read or write action, shifts it up one bit and ORs in a 1 (for read) or a 0 (for write) to the lowest bit, bit 0, giving the two 8 bit addresses, one for reading and one for writing. It actually is a 6 bit address, while the following 0x7F is data. I am aware of the 7 bit address limits and so I believe the 0x37 I am sending is a valid address. Wire.begin() // join i2c bus (address optional for master) All suggestions are welcome and most likely it’s something that I am forgetting although all the sample code I’ve viewed does not show me anything I am missing. I’m working on a development board and my EE says that it looks like a software issue. I’ve tried everything I can think of including setting the clock rate but the second and third byte are no where to be seen. When I run the following code I only see one byte of transmission on an oscilloscope over and over (every 100 ms). I’m having trouble with the wire library. ![]() I’m working in Visual Studio Code with the Platform io extension on a Mega 2560. Hi, Last month my password word was stolen from my Arduino account and they have temporarily blocked me out so I thought to post my question here. ![]()
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