Reading SDM120C Power meter
Posted: Wed Jul 27, 2016 9:44 pm
Hi all,
I've bought a Eastron SDM120C power meter. it has also a pulse output on two pins (pin 6[-] and pin 7 [+]); However, how can I read the pulses? I tried to measure by connecting the + to a GPIO pin of my ESP12E, however it does not see it as a low/high voltage / interrupt. So anyone an idea how to count the pulses? I've heard about something link open collector, I've read the info page on that but still don't know how to use it with ESP12E / NodeMCU.
Any help appreciated. If one needs more information about the meter, please let me know.
Regards,
Onno.
I've bought a Eastron SDM120C power meter. it has also a pulse output on two pins (pin 6[-] and pin 7 [+]); However, how can I read the pulses? I tried to measure by connecting the + to a GPIO pin of my ESP12E, however it does not see it as a low/high voltage / interrupt. So anyone an idea how to count the pulses? I've heard about something link open collector, I've read the info page on that but still don't know how to use it with ESP12E / NodeMCU.
Any help appreciated. If one needs more information about the meter, please let me know.
Regards,
Onno.