Hi! Friend, I have explained it for you here . Every 5 - 6 seconds Arduino is checking others functions. Regarding dosage, the way to make it very accurated is using delay and during this time Arduino won't make anything else. You can try using millis but the code can hang in some part and a big...

Hi! Welcome Gio! Thanks for your kind words. Connect according for this table: S1 to 16 S2 to 17 S3 to GND P1 to tank pH P2 to Reactor pH p3 to ORP p4 to EC Best regards.

Hi! Boa noite! :) This problem should be related to temperature sensor since temperature is used for compensation. The button in parameters screen just go back to home page as you can see here . The calibration function was not implemented yet. If you did the calibration using Atlas sample code is...

OK, thank you, for your very quick answer. :-bd :-bd now I use RJ 45, but it's still not simple. because I want to make the main controller as small as possible. I think it can removable.. :D thanks best regards

I'll mark this topic as solved since there's no feedback.

Hi! Glad to hear. About the stamps, it should work. I'll close this topic since the initial issue as solved. Best regards.

Hi, Indeed Fernando, I have changed the voltage reduction module and it works. Thanks for everything again

Hi Fernando, I don't talk with Juan Macchi. Could you pass me the link to buy the PCB and the project with the parts list? I wanted to buy soon, because China's purchases take a long time to arrive. Rômulo.

Glad to hear! You are doing a great job.

Okay I thought someone knows why the signal look so wierd like this . I will try to use an other IC at monday Have a nice weekend and thanks for quick response :)

Glad to hear! Thanks for this feedback.

Hi! The access point (ESP_xxx) stays available by a small amount of time. If you can't find the network so reset the ESP. If the SSID and password was configured at first time so even after install the firmware the board will connect automatically to your network so the access point won't be...

Eagle files are not available in anywhere.

Hi! Thanks for this info! Best regards.

My mistake, I thought I had seen a more recent version when looking for drivers for my screen, sorry I look a little closer next time.

Hi Fernando, it works perfectly! The jebao sw are equal to jebao rw! Maybe it can be useful information

Hi! Strange chars in last line is related with problem with RTC. Are you using right configuration for jumpers and code? The battery is good? One more doubt. Has anyone ever seen an assembly with flat cable to leave the TFT away from the board? You can buy a flat cable like this: I'm noticing a bad...

Hi Fernando I have an external power supply from 9V to 1500mA and it works now !! I made my test by powering the card through the USB port and it is a mistake, with the external power supply, it works perfectly! Thank you !!

Hi! Welcome Yannick! Look for this: Best regards.

Ok, but the model for 320 x 240 is ITDB32S.

Hi! Welcome Francisco! The ULN is very easy to find in Santa Efigênia. The PCF I have no idea. Best regards.

Hi! Using long wires the voltage will drop so the TFT won't work correctly. Using high voltage the regulator will overheat then drop the voltage. Measure the voltage on 5V circuit and in your IDE cable. P.S. If you are using a good ATX this step down is not needed. Connect the 5V from power supply...

Hi! This circuits are better: Best regards.

Hi! It's exactly as Ferduino Mega. You can connect the pin to any connector doesn't matter if it will be used now or later. Best regards.

Hi! You should reply before mark the topic as solved. This circuit should work but I think you should measure the current needed using a multimeter in serie with PWM wire. Maybe this transistor won't be needed. BTW yellow wire is tachometer and it is not used. Normally the PWM wire is blue and is...