Yesterday, 02:45 AM
Hello,
I have two questions.
First question, I have damaged the GPIO1 by having to many volts. It probably reached 7-8 volts. I'm using GPIO 1 and GPIO 2 as pulse counters. GPIO1 stopped working and will not read any more pulses. GPIO 2 still works.
Are there any additional GPIO that I can use for pulse counting. I'm not using Wi-Fi, 485, or SIM module. If it's possible, where are the additional GPIOs located? And will be using a voltage divider to drop voltage down to 1 volt.
Second question, for the digital inputs. I was hoping it would trigger with 12volts. But it seems it will only trigger with ground. The reasoning is that i am using this in a camper van and I get 12-14volt DC as trigger. But it doesnt trigger, only with ground.
Thanks again,
John A
I have two questions.
First question, I have damaged the GPIO1 by having to many volts. It probably reached 7-8 volts. I'm using GPIO 1 and GPIO 2 as pulse counters. GPIO1 stopped working and will not read any more pulses. GPIO 2 still works.
Are there any additional GPIO that I can use for pulse counting. I'm not using Wi-Fi, 485, or SIM module. If it's possible, where are the additional GPIOs located? And will be using a voltage divider to drop voltage down to 1 volt.
Second question, for the digital inputs. I was hoping it would trigger with 12volts. But it seems it will only trigger with ground. The reasoning is that i am using this in a camper van and I get 12-14volt DC as trigger. But it doesnt trigger, only with ground.
Thanks again,
John A