Moderator: igrr
- Thu Nov 12, 2015 1:45 pm
#33790
Hi,
ESP8266 has only 1 analog input (0-1V), arduino has 5 to 7 (0-5V). So If you work with analog sensors, keep this in mind
ESP8266 has only 1 analog input (0-1V), arduino has 5 to 7 (0-5V). So If you work with analog sensors, keep this in mind
- Thu Nov 12, 2015 2:20 pm
#33795
If 8 bits precision is enough, you can also use an PCF8591, an I2C ADC/DAC, it provides 4 inputs and 1 output.
And, since this PCF8591 has I2C addresses, you can use multiples of those on the same I2C bus.
And, since this PCF8591 has I2C addresses, you can use multiples of those on the same I2C bus.
- Fri Nov 13, 2015 12:24 am
#33824
Thanks alot for all the great info guys!
BTW, I have an AI-Thinker ESP8266MOD board that looks like it has 9 GPIO's .
After installing the esp board in Arduino UI, I see that there is a list of 4 8266 boards, and then some 12 and 210 boards to choose from.
How do I determine the best match for my board? It *looks* like the Adafruit HUZZAH uses the same encapsulated unit, but I cannot be sure the pins are the same - does it matter?
If I select a Generic board, would that limit me wrt pin assignments etc?
BTW, I have an AI-Thinker ESP8266MOD board that looks like it has 9 GPIO's .
After installing the esp board in Arduino UI, I see that there is a list of 4 8266 boards, and then some 12 and 210 boards to choose from.
How do I determine the best match for my board? It *looks* like the Adafruit HUZZAH uses the same encapsulated unit, but I cannot be sure the pins are the same - does it matter?
If I select a Generic board, would that limit me wrt pin assignments etc?
