is there a good chip for extra ADC's?
hey everyone,
i building line follower , wondering how more adc pins on arduino based robot standard 6 come arduino. idealy need total of 8, in general, wondering if there "goto" chip people commonly use adc's , how works , how fast compared standard arduino pins etc.
thanks
-epic
i building line follower , wondering how more adc pins on arduino based robot standard 6 come arduino. idealy need total of 8, in general, wondering if there "goto" chip people commonly use adc's , how works , how fast compared standard arduino pins etc.
thanks
-epic
some options:
1. use arduino mega, has 16 analog input pins.
2. stick single adc in arduino (which assume uno or other atmega328-based one), expand number of inputs using external analog multiplexer such cd4051b (which gives 7 additional inputs using 3 output pins) or cd4052b (which gives 6 additional inputs using 2 output pins).
3. if need higher adc conversion speed or higher resolution , not more inputs, go external adc spi or i2c interface. there lots choose from, , can't recommend 1 without knowing speed , resolution want.
1. use arduino mega, has 16 analog input pins.
2. stick single adc in arduino (which assume uno or other atmega328-based one), expand number of inputs using external analog multiplexer such cd4051b (which gives 7 additional inputs using 3 output pins) or cd4052b (which gives 6 additional inputs using 2 output pins).
3. if need higher adc conversion speed or higher resolution , not more inputs, go external adc spi or i2c interface. there lots choose from, , can't recommend 1 without knowing speed , resolution want.
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