Sign Up to our social questions and Answers Engine to ask questions, answer people's questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people's questions & connect with other people.
Volt.Tech
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Hello everyone, When using the XCOUT pin as normal input, and also power on, the pin is always low position and it’s set to pull up externally. why? Can anyone tell me? ( By the way, XCIN is ok).
Hello everyone,
When using the XCOUT pin as normal input, and also power on, the pin is always low position and it’s set to pull up externally. why? Can anyone tell me? ( By the way, XCIN is ok).
Read lessI’ve read quite a bit about needing a resistor when powering a 5 mm LED from an esp32 GPIO pin, still, other experts say that if a LED is powered right, it will not need a resistor at all will ...Read more
I’ve read quite a bit about needing a resistor when powering a 5 mm LED from an esp32 GPIO pin, still, other experts say that if a LED is powered right, it will not need a resistor at all will not burn out.
1. Is it as easy as purchasing a LED that’s powered properly for an esp32 GPIO pin so that it will not probably burn out in a reasonable amount of time( years)?
2. Still, what’s the current on each GPIO pin? ( I know that the voltage on each GPIO pin is 3, If so.3 V)
3. Rather than adding a resistor, I can add a second LED parallel to add resistance and meet the power requirements, right?
Thanks!
Read less
The maximum power per pin is 40mA. You shouldn't push more than 150 mA through all your output pins( and probably less than that to avoid overheating). You can find the correct resistor value using any led resistor calculator online and the datasheet for your led. I do not see how parallel resistorsRead more
The maximum power per pin is 40mA. You shouldn’t push more than 150 mA through all your output pins( and probably less than that to avoid overheating). You can find the correct resistor value using any led resistor calculator online and the datasheet for your led. I do not see how parallel resistors will be useful if you’re powering directly through the pin, and you do not have to get the exact resistance calculated. However, you should have a transistor gating a separate power supply for the light, If you need more than milliamps.
See less
Hi, You should add the Clock Generation Circuit stack in the Stacks tab of RA Smart Configurator and configure the pins as follows. Also, the pins are configured as XCIN and XCOUT. Let us know if you have further issues. Regards
Hi,
You should add the Clock Generation Circuit stack in the Stacks tab of RA Smart Configurator and configure the pins as follows.
Also, the pins are configured as XCIN and XCOUT.
Let us know if you have further issues.
See lessRegards