This article applies to the following CoolMaster products
- CoolMaster
- CoolMasterPro
- CoolMasterNet
- CloudBox
GPIO stands for General Purpose Input/Output. It’s a standard interface used to connect microcontrollers to other electronic devices
The following is the CMNET GPIO
| Parameter | GPIO A | GPIO B | GPIO C | GPIO D |
|---|---|---|---|---|
| V IL | <1V | <1V | <1V | ADC |
| V IH | >2.4V | >2.4V | >2.4V | ADC |
| V OUT HI | 3.3v | 3.3v | 3.3v | 3.3v |
| I OUT | 20mA | 20mA | 20mA | 20mA |
| Pull Up | 5.6K | 5.6K | 5.6K | 5.6K |