I was trying to find the resolution (in bits) and speed of the Analog In ports. The manual’s discussion of resolution is awfully confusing in that it seems to contradict itself. It says the voltage between 0 and 3.3V is given in 255 steps, or 8-bit resolution. It then shows how to calculate voltage from the digital reading. When it does, it divides the reading by 1024, not 254 prior to multiplying by 3.3 V. This gives an answer in 10-bits, doesn’t it? Which is the right resolution, 8 or 10 bits? I couldn’t find the conversion rate anywhere. What is it, please?
↧