4 ms·
The ESP01 works perfectly for most sensor projects. It can handle I2C and serial IO simultaneously. If you really need more GPIO you can get an I2C based IO E
by cptskippy 4y ago
The ESP01 works perfectly for most sensor projects. It can handle I2C and serial IO simultaneously.
If you really need more GPIO you can get an I2C based IO Expander to add 10 more GPIO.
- moffkalast 4y agoMeh, those cost extra and don't really do analog in or PWM out and have dreadful response time. Plus you have to deal with i2c which adds complexity. I suppose in this case you could do it in that roundabout way by stacking two of those for relay control since it's as basic as it gets.