My day 3: build a gsm monitor/alarm for a pump house Discussion ThreadMy day 3: build a gsm monitor/alarm for a pump house Electrical Advice
Seems to be working ok, as in texting and calling.
![[ElectriciansForums.net] My day 3: build a gsm monitor/alarm for a pump house](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/77/77707-3c1ebafa76339347774b73de2f7b5303.jpg "[ElectriciansForums.net] My day 3: build a gsm monitor/alarm for a pump house")
The mains relay's I have used are getting too hot, seems that the led resistor is of the wrong value so are dissipating too much heat.
Have started to do it another way for the mains monitoring.
![[ElectriciansForums.net] My day 3: build a gsm monitor/alarm for a pump house](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/77/77708-4f48dec839790a375d43e9b43bc4c480.jpg "[ElectriciansForums.net] My day 3: build a gsm monitor/alarm for a pump house")
My day 3: build a gsm monitor/alarm for a pump house for the original thread on Electricians Forums
Seems to be working ok, as in texting and calling.
The mains relay's I have used are getting too hot, seems that the led resistor is of the wrong value so are dissipating too much heat.
Have started to do it another way for the mains monitoring.
My day 3: build a gsm monitor/alarm for a pump house for the original thread on Electricians Forums
