Timeline for digitalPin giving lower voltage than Vcc
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 27, 2016 at 7:43 | vote | accept | Camilo | ||
| Aug 26, 2016 at 7:59 | answer | added | Edgar Bonet | timeline score: 2 | |
| Aug 26, 2016 at 4:09 | comment | added | Camilo | is there a way to disable such resistor? I have that pin set as OUTPUT | |
| Aug 26, 2016 at 3:38 | comment | added | ammar.cma | this behaviour might happen if you have PA1 set as input and pull up resistor enabled. Check the datasheet for Port A sub-section. It defines that it will source current when enabled. | |
| Aug 26, 2016 at 3:22 | comment | added | Camilo | I disconnected everything from the pin and I still get half the Voltage in Vcc when that pin is HIGH. In fact, all the pins on that side of the chip give half the voltage when they are on, while other pins give voltage near Vcc. I think those pins on that side of the chip have a resistor enable??? | |
| Aug 26, 2016 at 3:16 | comment | added | Nick Gammon♦ | Do you have a resistor in series with the LED? | |
| Aug 26, 2016 at 2:58 | history | asked | Camilo | CC BY-SA 3.0 |