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CircuitSetup / Expandable-6-Channel-ESP32-Energy-Meter

Hardware & Software documentation for the CircuitSetup Expandable 6 Channel ESP32 Energy Meter. Works with ESPHome and Home Assistant.
https://circuitsetup.us/product/expandable-6-channel-esp32-energy-meter/
MIT License
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Components/Hardware Details #75

Closed kimza90 closed 2 years ago

kimza90 commented 2 years ago

hi there,

I need your help! Which hardware do you have select? Do you have details or maybe a datasheet/shopping link? The BOM list is missing up to several components.

best regards kim

missmah commented 2 years ago

Indeed, is there a proper BOM for this project? The Eagle files seem to be missing a lot of important information. Thanks!

CircuitSetup commented 2 years ago

There is a BOM located here: https://octopart.com/bom-tool/EwHlAzfY

There are some parts that are out of date, however and can be substituted. The burden resistors used lately are 0.1% tolerance.

missmah commented 2 years ago

Thanks!!!

kimza90 commented 2 years ago

Thank you very much. do you have BOM for the adon board ??

CircuitSetup commented 2 years ago

Thank you very much. do you have BOM for the adon board ??

Sorry I overlooked your reply. The add-on board is the same, but has 2 long 20pin headers, 1 short header, 2 12pin 2 row 2mm connectors w/ 2mm shunts, and no power supply parts (C31-C35, R22, R23, L1, D1, BR1, IC3, DC connector)

kimza90 commented 2 years ago

Thank you for your feedback. can I only use add on board if I do not need volt measurement? add power via usb power to ESP32

CircuitSetup commented 2 years ago

The add-on board can be powered by the ESP32 usb port, yes. However, the meter's power calculations will not be correct without a voltage reference. This is okay if you only need the current measurement, or you want to calculate power in code.

kimza90 commented 2 years ago

in norway we have smart energy meters so can get the voltage reference from it. and we have 3 phase 230 volts so easier to get from the meter than and get it through the transformer =)

kimza90 commented 2 years ago

I see that ATM90E32AS-AU-R (IC1 - IC2) has a very long delivery time have you found a replacement that works?

CircuitSetup commented 2 years ago

I see that ATM90E32AS-AU-R (IC1 - IC2) has a very long delivery time have you found a replacement that works?

I've run into problems recently getting them. Unfortunately the ATM90E32AS and ATM90E36 are the only ones that can be used. I believe the 36 needs one of the unconnected pins grounded though.