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en:tech:powermeter [2021/01/21 11:40] – [Device Setup] bullar | en:tech:powermeter [2022/09/24 07:47] – [Conclusion] bullar | ||
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The first task is to investigate into the S0 interface and then make it available for evaluation in our home WiFi. Let's take a look at the S0 signal, which comes from a three-phase meter: | The first task is to investigate into the S0 interface and then make it available for evaluation in our home WiFi. Let's take a look at the S0 signal, which comes from a three-phase meter: | ||
- | {{: tech: s0_signal.png? | + | {{ : |
There are pulses of approx. 44ms and the interval between the pulses reflects the current consumption. In the example it is 19.25 seconds. According to the device specification, | There are pulses of approx. 44ms and the interval between the pulses reflects the current consumption. In the example it is 19.25 seconds. According to the device specification, | ||
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{{ : | {{ : | ||
- | ===== Programmierung | + | ===== Programming (ESPEasy)===== |
After the hardware has been created, we still have to program the ESP module. As already mentioned, the PowerMeter is based on [[https:// | After the hardware has been created, we still have to program the ESP module. As already mentioned, the PowerMeter is based on [[https:// | ||
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On this tab we only have to switch on the pull-ups at the inputs used. | On this tab we only have to switch on the pull-ups at the inputs used. | ||
- | {{: | + | {{ : |
==== Device Setup ==== | ==== Device Setup ==== | ||
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The calculated result is sent to the MQTT server at each completed measurement interval. | The calculated result is sent to the MQTT server at each completed measurement interval. | ||
+ | |||
+ | ===== Programming (ESPHome)===== | ||
+ | The PowerMeter can also easily be integrated with help of [[https:// | ||
+ | |||
+ | <code yaml> | ||
+ | esphome: | ||
+ | name: powermeter | ||
+ | |||
+ | esp8266: | ||
+ | board: esp01_1m | ||
+ | |||
+ | # Enable logging | ||
+ | logger: | ||
+ | |||
+ | # Enable Home Assistant API | ||
+ | api: | ||
+ | encryption: | ||
+ | key: " | ||
+ | |||
+ | ota: | ||
+ | password: " | ||
+ | |||
+ | wifi: | ||
+ | ssid: !secret wifi_ssid | ||
+ | password: !secret wifi_password | ||
+ | |||
+ | # Enable fallback hotspot (captive portal) in case wifi connection fails | ||
+ | ap: | ||
+ | ssid: " | ||
+ | password: " | ||
+ | |||
+ | captive_portal: | ||
+ | |||
+ | time: | ||
+ | - platform: sntp | ||
+ | id: my_time | ||
+ | |||
+ | sensor: | ||
+ | - platform: pulse_counter | ||
+ | pin: | ||
+ | number: GPIO14 | ||
+ | inverted: true | ||
+ | mode: | ||
+ | input: true | ||
+ | pullup: true | ||
+ | unit_of_measurement: | ||
+ | name: 'Power Meter Flat' | ||
+ | id: powermeter_flat | ||
+ | internal_filter: | ||
+ | filters: | ||
+ | - multiply: 0.06 # (60s/1000 pulses per kWh) | ||
+ | |||
+ | - platform: total_daily_energy | ||
+ | name: "Total Daily Energy" | ||
+ | power_id: powermeter_flat | ||
+ | </ | ||
+ | |||
+ | Instead of measuring the time between two pulses the number of pulse per time interval is counted. | ||
===== Conclusion ===== | ===== Conclusion ===== | ||
- | The PowerMeter | + | The PowerMeter |
- | {{:tech:consumption.png? | + | {{ :tech:verbrauch.png? |
The peaks include the oven, stove and kettle. The regular pulses come from the fridge/ | The peaks include the oven, stove and kettle. The regular pulses come from the fridge/ |