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Yes gpio 25 , pin #22

err

That kind of power regulation cause a lot of rf noise, I will prefer a whole cicle control. Use a slow pwm ( 1 or 2 sec period ) and fire with a zero cross optocuppler and you are done.

Yes, My eyes bright at the pressure sensors, but postage to Uruguay, and the beloved customs ( only 3 box from aboard per year free of charge or 60% duty ) put me down.

The time response in the RPi OS will lag too mutch for a application like that. I would resort to an Arduino doing the timing and communicating with the Pi via serial or PWM.

h is not in the Wiki, may need an update.

Don't even need a router. RPi can act as a AP for the local network.

That points are the I2C connection, but is a good place to check the 5V adjust. There is no way to measure 5V without a voltmeter, do not risk your RPi. BandonBrewingCo be aware if using a 12v pump that the output transistors are limited to 800mA or so. The pump should not require more than 6...

I prefer powering DS18B20 with 5V and tie the pullup to 3.3V like this: It is safe to actuate the relay from ESP since there is an optocupler led +R from 5V to the ESP pin, the voltage never goes above 3.5.

The sercret for SMD soldering :yes::yes::yes: and abundant Flux

We in Uruguay have problems with the periodic report that was caused by the ZTE router that the official ISP provides. It takes to long to set up the WiFi connection, raising the timeout or changing to a good brand router was the solution.

I had have errors with Advanced_one_wire & filtered_one_wire. The thread seems to quit for some error and the sensor stop updating. You can confirm in the sensor log, that stop updating as well. There is so munch "noise" in the app log from the UI update logging that can't see any sensor...

There are 2 basic actuators for relay, GPIOSimple & RealyBoard. Both do the same but with inverted logic. GPIOSimple will output hi logic when the relay should be on. Pay attention also the the thresholds in the fermenter definitions. The ON offset should be > than the off one.

Nice to see all options clearly described.

Do not install WiringPi as the repository is down lately

The GPIO output 3,3V , may be the 5V relay do not trigger.

Realyboard actors are the inverse of GPIO ones. Just change if they are inverted for your hardware.

The insta has to be run as root with sudo

I agree, but Gravitysucks want the board vertical as a VGA in a motherboard. A laptop fan, that blows lateral will be a perfect choice.

Instead of using the level shifter you can convert the LCD to 5/3V mix as explained here: https://www.instructables.com/id/Raspberry-Pi-Using-1-I2C-LCD-Backpacks-for-1602-Sc/ Just a cut and 1 more pin to send 5V to LCD & keep I2C board at 3,3V. I try it and works like a charm: