Like this thread !!!
I show you my double line wattmeter (it's for a little solar panel instalation so I can register both production and comsuption.
It has a Nokia 5110 LCD (with button for auto backlight for 10 seconds), SD register, and one of the measurement circuits has several shunt resistors in order to preconfigure your precision and ammeter/wattmeter scale.
![Image]()
It has to be developed into a good enclosure, but it works perfectly.
I also have a little Attiny85 and RF24 node to check temperature and Vcc with internal components. It is a node for a friend's home system. It is based in GPRS_Shield_V2.0 and it will control heater, rooms temperatures, garden watering and so on.
![Image]()
Cheers,
Statistics : Posted by Jacket Chen • on Mon Dec 01, 2014 6:28 pm • Replies 2 • Views 235
I show you my double line wattmeter (it's for a little solar panel instalation so I can register both production and comsuption.
It has a Nokia 5110 LCD (with button for auto backlight for 10 seconds), SD register, and one of the measurement circuits has several shunt resistors in order to preconfigure your precision and ammeter/wattmeter scale.
It has to be developed into a good enclosure, but it works perfectly.
I also have a little Attiny85 and RF24 node to check temperature and Vcc with internal components. It is a node for a friend's home system. It is based in GPRS_Shield_V2.0 and it will control heater, rooms temperatures, garden watering and so on.
Cheers,
Statistics : Posted by Jacket Chen • on Mon Dec 01, 2014 6:28 pm • Replies 2 • Views 235