Aries
New Member
I've been using a slightly modified version of AllyCat's I2C scanner (https://picaxeforum.co.uk/threads/i2c-bus-search-program-for-slaves.32149/ - post #4) on a 28X2 and a 40X2. I've not touched the calibadc section for determining the voltage of the power supply, but it consistently gives me about half what I read with a voltmeter. It looks for all the world as if the reference voltage is 2.048 instead of 1.024. Has anybody else had this experience? Am I right, or am I missing something?