Remotely switch things and read data using ESP8266 Arduino and your website.
Project tutorial by moty
Control Arduino outputs and read input data on your website using Ethernet module ENC28J60.
Arduino and Ethernet module send data to the web using a website, no need for static IP.
An aquarium controller that manages many aspects of the aquarium such as lighting, temperature, water flow, energy consumption, and feeding.
Project showcase by vapor83
Control a wall outlet using an Arduino using this DIY solid state relay outlet.
Project tutorial by Ben Jones
Dear friends welcome to another tutorial! Today we are going to learn how to use this analog voltmeter with Arduino.
Project tutorial by Nick Koumaris
Different water need different frequency, you have to experiment and find what is the best in your area. With little change to the code you can have constant frequency.
You can drop the 12V to 10V by putting 3 1N4001 in series.
The caps insure AC only through the coil, only change in magnetic flux affects the water.
The reason for the error is the code in line 58. Every 32768 counts of the input the line of code is executed and stops the count for the duration. A good solution would have been for the counter to reset itself but the hardware doesn't have this option.
I wanted the math in the code to look sensible so I left this error. You can change the number in line 54 (OCR1A = 32767;) to 32755 or another near number to correct the displayed frequency readings. Check the readings of several input frequencies to make sure it works for you.
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