New answers tagged pigpio
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Pigpio Hardware PWM_unable to write frequency above 5Khz
There are known problems on the Pi4B and later (the Pis with the BCM2711).
We have not discovered the reason and currently there is no known fix.
https://github.com/joan2937/pigpio/issues/517
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Simple float switch sensor frying GPIO pins, while the other doesn't? Hydroponics system
You likely have another power supply in your system (for the pumps, etc.) and it's likely much higher voltage than 3.3V. You need to make sure there's no way for the current to go from this power ...
- 26k
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Simple float switch sensor frying GPIO pins, while the other doesn't? Hydroponics system
This is not really a Pi question.
You are ignoring most of the environment - what else is connected; I assume the solution is connected to some kind of pump and is conductive - this is almost ...
- 53.3k
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Simple float switch sensor frying GPIO pins, while the other doesn't? Hydroponics system
I will take a SWAG: You have no protection on the GPIO pins which is bad especially with the long wires connected to them. The leds are close to the motor power leds which are great radiators of ...
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AttributeError: module 'RPi.GPIO' has no attribute 'ChangeDutyCycle'
Those functions are part of GPIO.PWM.
Instead of motor_1_f = GPIO try motor_1_f = GPIO.PWM(channel, frequency)
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