Hello,
I'm looking for a component which allows me to switch the output between GND and floating, as shown in the image below. When the trigger is logical 'high' the output should be connected to the floating contact (see 1), so that it's not absolutely zero. When the trigger is logical 'low' the output should be connected to the GND (see 2). The 'output' signal is used for triggering. I have to pull this pin to GND to trigger the device, but I am not allowed to pull it to 3v3 afterwards. That's why I want to let it float before triggering it again. I've tried above with a optocoupler and a transistor, but this didn't work. I except this is because of the threshold of about 0.7V of a transistor.
Does anyone have an idea what's the best fitting solution for my problem?
Kind regards,
Stolco
I'm looking for a component which allows me to switch the output between GND and floating, as shown in the image below. When the trigger is logical 'high' the output should be connected to the floating contact (see 1), so that it's not absolutely zero. When the trigger is logical 'low' the output should be connected to the GND (see 2). The 'output' signal is used for triggering. I have to pull this pin to GND to trigger the device, but I am not allowed to pull it to 3v3 afterwards. That's why I want to let it float before triggering it again. I've tried above with a optocoupler and a transistor, but this didn't work. I except this is because of the threshold of about 0.7V of a transistor.
Does anyone have an idea what's the best fitting solution for my problem?
Kind regards,
Stolco