The latest IotaWatt, now with OpAmp bias circuit and TVS diode arrays protecting all the inputs. Ready for CE testing. Component count has been cut in half and stability seems to be improved. [image]

[image] GeorgeB: @glyn.hudson what prevents the new CT’s being suitable for the emonPi and emonTx? Unlike the IotaWatt the calibration factor on the emonPi / emonTx is set in the firmware. It would be possible to use different CT’s but the calibration / phase shift would have to be updated in…

[image] flywire: More congratulations to @overeasy and @glyn.hudson for development, testing, certification and bringing IotaWatt to the community. Thanks and well done! Cheers, thanks for your support :blush: @overeasy did all the hard work, full credit to him it’s a fantastic unit.

[image] glyn.hudson: Unlike the IotaWatt the calibration factor on the emonPi / emonTx is set in the firmware. I will start a separate thread regarding CT’s to try and get a better understanding of the calibration and phase shift.

@GeorgeB Long time lurker here, but your post is timely to what I am working on. I am about to start testing multiple CT options (both split and solid core) from YHDC for the monitor that I am developing. I will be happy to contribute my test results in due course. Mike

@MikeD can I direct you to the new “CT” thread at Implications of using different CT's with Open Energy Monitor Hardware

Hi Bob, congratulations on the release. Is it possible to order through the Open Energy Monitor store and have it shipped directly from your shop to New York (to save shipping cost and get it faster)?

[image] SpruceCurrent: Is it possible to order through the Open Energy Monitor store and have it shipped directly from your shop to New York (to save shipping cost and get it faster)? Hi Earl, thanks for the kind words. I’m sorry that I’m not equipped to fulfill US orders. I’m trying to remai…

@overeasy : Do you have any idea of the memory consumption on the SD card? (i guess its channel related) The specs page mentions 8gig sd card minimum, but you picture in this tread (very top) shows a 4 gig card. What happens when the sd card is full?

[image] promy: Do you have any idea of the memory consumption on the SD card? Jan, the datalog is still in a bit of a flux. You are safe with either a 4GB or 8GB card, but I would recommend going with 8gb for the long haul. This type of memory has wear management built in, and over a number…

I’m currently working on a setup guide for the IoTaWatt to go on our User Guide Site . Dones anyone who has received an IoTaWatt so far have a tidy installation photo to hand that you would be happy for me to use? Our dev setup IoTaWatt install is not particularity tidy! Thanks.