3 ms·
That's an ESP-01. It has 4 GPIO with some restrictions but you are able to simultaneously run an I2C bus and Serial bus giving you tremendous flexibility. You
by cptskippy 4y ago
That's an ESP-01. It has 4 GPIO with some restrictions but you are able to simultaneously run an I2C bus and Serial bus giving you tremendous flexibility.
You can get those in bulk for less than a dollar each and are my most used microcontroller. They're so easy to deploy and ear easily powered of USB wall warts with a regulator.