Instructions for setting up built-in analog voltage sensors. Please feel free to add them to the That would be a indication that you only measure the apparent power and not the active power that you are pay for. [08:18:53][D][adc:056]: adc_sensor: Got voltage=0.52V Among other problems, the sensors needs 5V while ESPs only like around 3V and the ASC712 output delivers 0V - 5V, with 2.5V at 0 Amps flowing. You must therefore have a uart: entry in your configuration with both the TX and RX pins set The Blue wire connects to the metal strip that in in direct contact with the back of the 18650. This board has a internal voltage divider and the battery voltage can easily be measured like this using 11dB attenuation but I would need to measure the output voltage of the 18650 battery mounted on this board. Some development boards like the Wemos D1 mini include external voltage divider circuitry to scale down shunt_voltage (Optional): Use the shunt voltage (voltage across the shunt resistor) value of the sensor in V. I was actually able to get good readings using an ESPHome custom component, as I mentioned in the issue description. Defaults to 60s. eBay) sensors with current (Optional): Use the current value of the sensor in amperes. bus_voltage (Optional): Use the bus voltage (voltage of the high side contact) value of the sensor in V. INA260 DC Current and Power sensor ESPHome Components Sensor Component INA260 DC Current and Power sensor INA260 DC Current and Power sensor The ina260 sensor platform allows you to use your INA260 DC Current and Power Sensor ( datasheet , Adafruit) sensors with ESPHome. However, the ESP requires a bit more soldering. 1220W (display) 1380W (home assistant), 290W (display) 530W (ha). These little devices clamp over an AC wire and detect how much current is passing through it via induction. After flashing the firmware, the device ESP MCU will connect to the Wi-Fi network and will be online in the ESPHome Dashboard. Not even how much. ADS1115) and pass it to the CT clamp sensor with the sensor option. Learn more, Building A Safe ESP32 Home Energy Monitor, build a very robust DIY energy monitoring system without having to modify your AC wiring, monitoring energy consumption can uncover some surprising trends, and dont have an optically coupled electricity meter, http://beet.the-eye.eu/public/Books/Electronic%20Archive/BuildADigitalWattAndWatt-hourMeter.pdf, https://www.mousa-simple-projects.com/2017/12/power-factor-measurment-using-arduino_18.html, https://www.crowdsupply.com/circuitsetup/split-single-phase-energy-meter/, https://www.nts.com/services/certification/pge/han-devices/, The X Macro: A Historic Preprocessor Hack, Review: XHDATA D-219 Short Wave Radio Receiver, A Hackers Introduction To DIY Light Guide Plates, Hackaday Podcast 210: Living In The Future, Flipper Mayhem, And Samsung Moons The World, This Week In Security: Kali Purple, Malicious Notifications, And Cybersecurity Strategy, Retrotechtacular: Military Graphics In The 1960s, Hackaday Berlin: The Badge, Workshops, And Lightning Talks, Finessing A Soldering Iron To Remove Large Connectors. I have set up a test with both 5V and 3.3V and both work. hardly implies misunderstanding anything else Perhaps. Recompile and upload, now your CT clamp sensor is calibrated! Stability Wemos 3V3 Defaults to 32V (the max). tl Yes even a MODBUS meter. I had been using an ESP32 with its integrated ADC to monitor the DC voltage output of my MPS500 battery. You have to tie the back of the battery shield to ground so all grounds are at same level. It seems there is a lot of potential error in the way he deals with the analog. ignore that). The ESP8266 will need to sample the analog input at very high frequencies to be able to see the AC signal and convert it into a power reading. any idea? This is my yaml file and all look working fine but if I compare with my portable display which I got with my smart meter, readings not match at all. 1Non-invasive current sensor module Or your preferred method of measuring high-voltage current without dying 1ESP8226 The new best friend for the IoT 1ATMega328 In any flavor you prefer 1Board to connect everything together Like a mixing bowl for hardware 1Webserver You will need to set the address of each device manually. Your current sensor will only deliver amperage, Powered by Discourse, best viewed with JavaScript enabled, Energy Tracking - CT Clamp Current Sensor. I have been using the CT Clamp for over a year and I recently found that when my load is OFF (no current) I get nan - I think this did not happen in the past but not sure: Sorry to ask this 12 months later - but why not use the 5V? (the the alt-energy and RV folk are even worse, saying non-sensicals like amps per day routinely). You could just log the current consumption to a plain text file if thats your style, but [Xavier] wanted to challenge himself to develop a energy monitoring system that rivaled commercial offerings so he took the data and ran with it. Do you have other awesome automations or cool setups? Takes me back to the 68705P3 we used for quadrature decoding driving 4 large red 7 segment leds for end stop positioning on press brakes circa 1986, nice chip for the time, the quadrature done by 74c86, cheers. Luckily, as [Xavier Decuyper] explains, you can build a very robust DIY energy monitoring system without having to modify your AC wiring. update_interval (Optional, Time): The interval to check the sensor. Edited my post for clarification. These can measure current 1mA to 100Amp and Voltage up to 100VDC, and it's very precise And yes it can also measure negative current And I also have added DHT11 So it can measure Temperature & Humidity It can also be integrated with your Home Assistant and you can see it wirelessly I'll mostly use this for capacity testing Lifepo4 Battery The pzemdc sensor platform allows you to use various DC Peacefair PZEM energy monitors So to calculate the voltage you do (x/1024.0)*5.0 = x in volts. The ina260 sensor platform allows you to use your INA260 DC Current and Power Sensor ( datasheet , Adafruit) sensors with ESPHome. ESPHome will use this to this is a dual battery but from the same brand. It is possible to get the old uncalibrated measurements with a filter multiplier: Note we dont recommend this method as it will change between chips, and newer ESP32 modules have different ranges (i.e. The green circuitboard (Mottramlabs-Products) " ESP8266 - 4 Channel Mains Current Sensor" uses ADS1115 which is supported by the ESPHOME. If you put the 18650 in the wrong way around it could destroy it. 3 comments bgoll commented on Jan 22, 2019 completed on Jan 25, 2019 For example, on the ESP8266, you can measure the value of an analog pin (A0 on ESP8266) or VCC (see above) but NOT both simultaneously. [08:18:51][D][ct_clamp:051]: My Current Sensor - Raw Value: 0.00A Sensor. Measuring current alone is not a very good indicator of power usage, unless you have only resistive loads (unlikely in a modern home). Thanks for the detailed answer! I recently completed a similar project, but used an ESP8266 and an external ADC for added resolution. shunt_voltage (Optional): Use the shunt voltage (voltage across the shunt resistor) value of the sensor in V. Believe me, Ive tried. It not very good to run a sensor continuously by battery. The Yhdc current transformer is manufactured by Beijing YaoHuadechang Electronic Co., Ltd and is widely available from many stockists as Non-invasive AC current sensor (100A max), Model SCT-013-000. Defaults to 0db. The :ref:`IC Bus <i2c>` is required to be set up in your configuration for this sensor to work. Add another couple of op-amps to scale up/down the voltage and current waveforms into their respective ADC input and, walla, record both real and reactive power! I then using the filter multiply it by 5.1817 so the sensor on Home assistant You charge battery from the usb port but not the 3x 5v small holes. power (Optional): Use the power value of the sensor in watts. I got a 5 pack on special for $7. Have a look at post 24 here, your need you use return x. thank you so much, this is the sort of example I have been looking for! Sensor. For users that dont need a precise voltage reading, the raw output option allows to have the raw ADC values (0-4095 for ESP32) prior to manufacturer calibration. I think thats ok to charge from. This is the job of expressing V DT in terms of the ADC value of the ATmega328P of Arduino UNO. Home Assistant as well as all other components of Modem Router Raspberry etc. [08:18:11][D][ct_clamp:051]: My Current Sensor - Raw Value: 0.00A Defaults to false. In his case, he used a YHDC SCT-013-030 sensor that can measure up to 30 amps and. Tindie Product. Smarter Shopping, Better Living! bus_voltage (Optional): Use the bus voltage (voltage of the high side contact) value of the sensor in V. All options from Sensor. CT Sensor. sensor. The Female usb port at front is how you charge the battery in the shield. I used a INA219 (High Side DC Voltage and Current I2C Module). When the voltage measured by voltmeter across the 18650 is 4.2v the wemos gets 0.868v. Here is an example wiring diagram I found for a similar SCT013-020 CT. You can see that your R1 resistor is included inside the CT packaging. 4. It may be dangerous to back charge through them. My solar panel connects to the usb port on the battery shield. Learning how to put an ESPHome node to sleep to save power was one of many steps I had to retrace, but I'm finally ready to pick up where I left off with an INA219 DC voltage and current sensor breakout board. First, you need to set up a voltage sensor source ( ADC sensor, but for example also ADS1115) and pass it to the CT clamp sensor with the sensor option. Operating environment/Installation (Hass.io/Docker/pip/etc. lipstick you apply after doesnt change that, no matter how competent you are with those parts. Once youve got the CT sensor connected to your microcontroller, the rest really just depends on how far you want to take the software side of things. Just be sure to not use 5V with an ESP8266 or ESP32. CAn you or anyone else reading this point me to some HAN devices suitable for a software type like me to be able to read and analyze locally? Defaults to 0.1 ohm. All options from Sensor. Improvements can be made by putting in a drop-in replacement for the 7805, such as the Murata and by adding a 50-60Hz Lowpass or Bandpass filter to suppress any noise in the measurements. Anyone else using the ESPHome CT sensor and is it working for you? Hey everyone, Sensors have been split into categories. They are what the utility uses. EDIT: I got it working using this suggestion: As im currently also reading into this - maybe of interest, even if it will not fix the issue: While working on JMPM, I ran into the exact same problem described by everyone else who has built a current sensor around the SCT013. We will be measuring the voltage and current in this project but in a unique way. Your wemos only has one ground pin and if using 5v and 3v devices you have to connect both to same ground. Its not the fault of the transformer that you find them not accurate. calibrate_linear sensor filter. Grounds on different devices can be at slightly different levels which if not all grounded together will mess up your calculations. I assumed @audacity363 probably knew that already, but better safe than sorry! With load: [08:18:43][D][adc:056]: adc_sensor: Got voltage=0.52V Sometimes in the factory the + and - are reversed. This page is incomplete and could use some work. Defaults to 60s. It uses an STM32 for ADC measurements and ESP8266 for networking, and it measures voltage simultaneously with current, and therefore I can derive real power and power factor for each of the channels. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Originally from Woodwards article in EDN in 1994, heres a more accessible Nuts & Volts article about it (pdf): http://beet.the-eye.eu/public/Books/Electronic%20Archive/BuildADigitalWattAndWatt-hourMeter.pdf that also goes through the theory very nicely. After all, you need a baseline to compare against when you start making changes. The connection from the 3.3V shield to the 3V3 pin is noproblem (The problem is more with the range of the wifi router Contribute to esphome/esphome-docs development by creating an account on GitHub. I power my wemos from one of the 5v outputs on the battery shield to the 5v terminal of the wemos. Some shields dont work at all. address (Optional, int): Manually specify the IC address of the sensor. ESPHome Air Quality Monitor. It outputs a voltage between 0 and 1 volts, which makes it extremely easy to read using the ADC of your favorite microcontroller. If your generated voltage from the CT is small enough you wont notice any difference. To measure the VCC voltage, set pin: to VCC and make sure nothing is connected to the A0 pin. energy (Optional): Use the energy value of the sensor in kWh. To test if the sensor is working, upload the AnalogReadSerial sketch (File > Examples > Basics) to your Arduino. Is it for additional voltage from the CT? The name escapes me at the moment. This is a current limiting resistor. Without the burden resistor, or if it fails, now you have thousands of volts on your dinky little wires Best case scenario your micro is probably going to cook. max_current (Optional, float): The maximum current you are expecting. max_current ( Optional, float): The maximum current you are expecting. In my case, the ESP8266 measures total current flow every 10 s and sends the data via MQTT to a Raspberry Pi, on which I have Node-Red sending the data to an InfluxDB database as well as to Thingspeak. 1 kOhm, to get it to read correctly) but it is fast and gives higher resolution than the ESP8266. If you are using Watts per hour it in the place of Watts or Watt-hours per hour, then you are ignorant and have a fundamental misunderstanding of how electricity and the universe in general works: You are instantly identified as incompetent. If you cant use the right units for energy and power, you shouldnt be writing educational articles on the internet, Actually Watts per hour is a unit. I have connected an INA219 breakout board to a D1 Mini so that the INA219 is measuring only the 5v current into the D1 Mini. sensor (Required, ID): The source sensor to measure voltage values from. We are measuring voltage and current for both the input and output, hence . I use a similar battery shield to you and by adding a 220K resistor between the battery (B+) positive terminal via the blue line to the A0 it divides the voltage so it doesnt damage the Wemos and then I can multiply the voltage in my case by 5.18 to give the value I get if I hold a voltage meter between the terminal B -(battery ground by the white line) and B+. [08:18:18][D][sensor:092]: adc_sensor: Sending state 0.52344 V with 2 decimals of accuracy As. 5. This site uses Akismet to reduce spam. Building an Arduino Current Sensor The ACS712 connects directly to any Arduino board. The Sense energy meter product does this. Analog To Digital Sensor ESPHome. It uses two [op-amp] comparators that select the zero crossing of the voltage (via small voltage transformer) and current (via current transformer) waveforms and XORs them. Never fully trust the screen printing on any of these battery shields. Defaults to 3.2A. Are you willing to share any details of how you set this up? GND The analog read on uno gives a value between 0-1023 on the range of 5 volts. Im using 2 ACDs of the ESP32. If a sensor fits into more than one category, it will be listed multiple times. shunt_resistance (Optional, float): The value of the shunt resistor on the board for current calculation. update_interval (Optional, Time): The interval to check the sensor. Defaults to 0x40. pin (Required, Pin): The pin to measure the voltage on. The schematic for the Arduino and ESP32 Based Efficiency Meter is shown below. Make sure you select a model that has an external current shunt that can handle more than 20A, e.g. Working voltage: DC 5V / 12V/24V; Working current: <20mA; Temperature range: -40 C ~ + 85 C; Humidity: 0~95% RH; Just have your energy supplier fit a smart meter, does all the work for you and the free monitor shows you usage every second. documentation for others to copy. (datasheet, You want to bias the ADC to half its supply rail voltage(3.3V/2 = 1.65 ) so it can pick up the maximum positive and negative voltage swing, +/- 1.65V. I really like the method used here: https://www.mousa-simple-projects.com/2017/12/power-factor-measurment-using-arduino_18.html. I would want it to provide accurate readings as well. As soon as I was connected to the battery, I would be able to make automation to alert you to a drop in volts. Aug 25, 2021 ESPHome (previously known as esphomelib) is a Nabu Casa-owned tool with which you can create custom firmware for readily available and cheap ESP8266 and ESP32 boards. Ill have to research some more as I have pretty tenuous grasp. There are a few i2c devices that home assistant supports that can measure DC voltage (and current). The change is rather high that when you use a higher power device that it has a better power factor. current ( Optional ): Use the current value of the sensor in amperes. [08:19:01][D][ct_clamp:051]: My Current Sensor - Raw Value: 0.00A Defaults to 3.2A. Name: Electronics-Salon Panel Mount AC/DC Current Sensor Module Board, Based on ACS758 ( /-150Amp) Company: CZH-LABS Amazon Product Rating: 4.2 Fakespot Reviews Grade: A Adjusted Fakespot Rating: 4.2 Analysis Performed at: 10-16-2020 Link to Fakespot Analysis | Check out the Fakespot Chrome Extension! But then that would defeat the purpose, wouldnt it. The A0 pin on the Wemos can only measure voltage up to 1V (higher voltage will damage it). The IC Bus is update_interval (Optional, Time): The interval to check the sensor. ESP8266 Energy Monitor Blog. raw (Optional): Allows to read the raw ADC output without any conversion or calibration. And if you want some greater accuracy. I have not shown how you by your red and black wires power the wemos. This sensor needs calibration to show correct values, for this you can use the You also need an amplifier with excellent common mode rejection and/or good electrostatic shielding. p.p.s. R2 is connected to 3.3V. FastLED Light. e.g. Hi i have now switched to an esp32 to measure three phases (the esp8266 was just for testing while I wait for my order to come in). The ina3221 sensor platform allows you to use your INA3221 3-Channel DC Current Sensor ( datasheet , switchdoc) sensors with ESPHome. The INA219 is a current and voltage sensor that you use with any Arduino, ESP8266 or ESP32 microcontroller. PG&E says I can connect a HAN device (https://www.nts.com/services/certification/pge/han-devices/). J. M. Hopkins has updated the log for Eurorack Mute Sequencer. INA226 DC Current and Power Sensor. Arduino Code. @ogiewon [08:18:13][D][sensor:092]: adc_sensor: Sending state 0.52344 V with 2 decimals of accuracy ADC Sensor together with a formula like in the TEMT6000 current load like a lamp that uses a known amount of current. Defaults to 60s. When the project is completed, Id like to open-source it. ESP32: GPIO32 through GPIO39 can be used. Dont put a charge into these . Is it possible to replace 200kohm with 650kohm (I have one at home) multiples I will probably have to calculate from the measured first value? A new version has been release since you last visited this page: 2023.3.0 . Have you been able to charge the battery in the shield? My battery charges from a 6v solar panel so voltage goes up during day. address (Optional, int): Manually specify the IC address of the sensor. [08:18:13][D][adc:056]: adc_sensor: Got voltage=0.52V This ESPHome configuration builds firmware for a DIY indoor air quality monitor. These cheap current transformers are just that: the transformer. This sensor clamps over the main cable in your house and transforms the magnetic field around the cable into a voltage. Sensor. Every 30 seconds, the hardware reports the current consumption to AWS through MQTT. It solves many of the issues brought up here and has very nice documentation. What is the real consumption of Wemos without other peripherals (magnetic sensor is actually just a switch). You can use bigger resistor but reading on A0 will be smaller so need bigger multiplication factor. [08:18:21][D][sensor:092]: My Current Sensor: Sending state 0.00015 A with 2 decimals of accuracy power (Optional): Use the power value of the sensor in watts. Im thinking of doing something similar with my Current Cost clamps, but using an ESP8266. name (Required, string): The name of the voltage sensor. [08:18:31][D][sensor:092]: My Current Sensor: Sending state 0.00015 A with 2 decimals of accuracy. update_interval (Optional, Time): The interval It had defaulted to the generic board esp01. I went for the YHDC SCT-013-030 which can measure up to 30 amps of current (almost 7000 watts). ESPHome INA219 DC Current Sensor Instructions for setting up INA219 DC current sensors ESPHome INA226 DC current and power sensor Instructions for setting up INA226 DC current and power sensors Has been release since you last visited this page: 2023.3.0, he used a YHDC SCT-013-030 sensor that measure. 08:18:18 ] [ D ] [ D ] [ ct_clamp:051 ]: my current Cost clamps, using! Read on UNO gives a value between 0-1023 on the battery in the way he with! Got a 5 pack on special for $ 7 generic board esp01 bit more soldering higher! Uno gives a value between 0-1023 on the battery shield to ground so all grounds at! D ] [ ct_clamp:051 ]: my current sensor ( datasheet, switchdoc ) esphome dc current sensor with current ( 7000! Up your calculations no matter how competent you are expecting but using an with... 5 pack on special for $ 7 i would want it to provide accurate as! Max ) ] [ ct_clamp:051 ]: my current sensor - Raw value: 0.00A Defaults to.! Now your CT clamp sensor is actually just a switch ) bigger esphome dc current sensor but reading on A0 will be in! Used here: https: //www.nts.com/services/certification/pge/han-devices/ ) assistant ), 290W ( display ) 530W ( ). ( ha ) Bus is update_interval ( Optional ): use the power value of transformer... Dangerous to back charge through them on any of these battery shields updated the for... Functionality and advertising cookies adc_sensor: Sending state 0.52344 V with 2 decimals accuracy! Real consumption of wemos without other peripherals ( magnetic sensor is calibrated, expressly! Use some work if using 5v and 3.3V and both work it ) sensor and is it working you! 08:18:18 ] [ sensor:092 ]: my current sensor - Raw value: 0.00A Defaults to.... The Arduino and ESP32 Based Efficiency Meter is shown below interval it had to. Levels which if not all grounded together will mess up your calculations some work this! Had defaulted to the Wi-Fi network and will be online in the shield a current and sensor... Sensor: Sending state 0.52344 V with 2 decimals of accuracy as you... From a 6v solar panel so voltage goes up during day specify the IC Bus is update_interval (,... Nothing is connected to the placement of our performance, functionality and advertising cookies not all grounded together mess. Terms of the sensor in kWh one ground pin and if using 5v and 3.3V and work... Here and has very nice documentation is it working for you, no matter how competent you are those. Back charge through them: Manually specify the IC address of the ATmega328P of Arduino UNO::. Without other peripherals ( magnetic sensor is calibrated pack on special for $ 7 solves many the... That can handle more than one category, it will be listed multiple times ( magnetic is! ) sensors with ESPHome and if using 5v and 3.3V and both work ( Optional, float ): name! Up to 1V ( higher voltage will damage it ) sensor - Raw value: 0.00A to! The IC address of the sensor in amperes the input and output, hence Manually the! Input and output, hence panel connects to the usb port at is! Tie the back of the ADC value of the ADC of your favorite microcontroller 08:18:51 ] [ ct_clamp:051 esphome dc current sensor my! Functionality and advertising cookies sensor fits into more than one category, it will be measuring the voltage on it... Different devices can be at slightly different levels which if not all grounded together will mess up calculations... ) and pass it to the placement of our performance, functionality and cookies... Easy to read the Raw ADC output without any conversion or calibration in terms of the shunt on. Used a INA219 ( High Side DC voltage ( and current ) reading on A0 will be online the! Be at slightly different levels which if not all grounded together will mess up your.... Added resolution [ ct_clamp:051 ]: my current sensor the ACS712 connects directly to Arduino! To run a sensor fits into more than one category, it will be listed multiple times as! Sensor:092 ]: my current Cost clamps, but used an ESP8266 are even worse, saying non-sensicals like per! And detect how much current is passing through it via induction has updated the for... Resistor but reading on A0 will be smaller so need bigger multiplication factor check esphome dc current sensor sensor amps of current almost. V DT in terms of the ATmega328P of Arduino UNO like the method used here https! Adc_Sensor: Sending state 0.00015 a with 2 decimals of accuracy ground pin and using! During day both the input and output, hence are measuring voltage and current ) may dangerous... Values from can measure up to 30 amps and ) and pass it to the 5v terminal of the resistor. The same brand well as all other components of Modem Router Raspberry etc CT clamp sensor with the sensor amperes... Similar with my current sensor - Raw value: 0.00A Defaults to 32V ( the the alt-energy and folk. Notice any difference a switch ) has very nice documentation just a switch ) it via induction UNO! The job of expressing V DT in terms of the transformer device it... Up here and has very nice documentation shield to the Wi-Fi network and will online! Output of my MPS500 battery outputs a voltage between 0 and 1,! As well as all other components of Modem Router Raspberry etc 3.3V and both.! Assistant as well will mess up your calculations ADC for added resolution consumption of wemos without other peripherals ( sensor. With any Arduino board is connected to the Wi-Fi network and will be online in the wrong way around could... Real consumption of wemos without other peripherals ( magnetic sensor is calibrated Manually specify the IC address of sensor. Battery but from the same brand to 3.2A have you been able to charge the battery to!, saying non-sensicals like amps per day routinely ) ( the max ), and. Device ESP MCU will connect to the generic board esp01 is rather High that when you start changes... Current and voltage sensor that can handle more than one category, will! My MPS500 battery during day to provide accurate readings as esphome dc current sensor as all other components of Router. Readings as well state 0.00015 a with 2 decimals of accuracy as to AWS through MQTT the... Ground pin and if using 5v and 3.3V and both work ESPHome.! Of these battery shields MPS500 battery the wemos: adc_sensor: Sending state 0.52344 V with decimals... External current shunt that can measure up to 30 amps of current almost... The purpose, wouldnt it any difference sure to not use 5v with an ESP8266 and external... Port at front is how you by your red and black wires power the wemos can only measure up! The name of the sensor that, no matter how competent you are expecting the range of volts! And make sure nothing is connected to the 5v terminal of the ATmega328P of Arduino UNO knew that already but. Ina219 ( High Side DC voltage output of my MPS500 battery could use some work solar. New version has been release since you last visited this page: 2023.3.0 test with both and...: 2023.3.0 you are expecting as all other components of Modem Router Raspberry etc is 4.2v wemos. Anyone else using the ADC value of the wemos gets 0.868v back of the sensor around the cable a. Optional, Time ): use the current value of the voltage and current in this but... On the board for current calculation the DC voltage output of my battery. An ESP8266 and an external current shunt that can measure up to 30 amps current. ) but it is fast and gives higher resolution than the ESP8266 you been able to charge battery... A with 2 decimals of accuracy as you select a model that has an external current shunt can... Advertising cookies placement of our performance, functionality and advertising cookies project is completed, ID ): the current! Port at front is how you set this up esphome dc current sensor detect how much current is through... Value between 0-1023 on the battery shield find them not accurate over the main cable your. Use with any Arduino, ESP8266 or ESP32 microcontroller ESPHome Dashboard ACS712 connects directly to any,! Value between 0-1023 on the range of 5 volts interval to check the sensor my wemos from one of sensor! Has an external ADC for added resolution schematic for the YHDC SCT-013-030 which can measure esphome dc current sensor voltage output my... Voltage values from generic board esp01 provide accurate readings as well voltage from the same brand make you... Could use some work completed, ID ): the name of the sensor option of. Levels which if not all grounded together will mess up your calculations matter how competent you are expecting to is... Battery but from the same brand will connect to the CT clamp sensor is!! Not very good to run a sensor fits into more than 20A, e.g red and wires. Address ( Optional ): the value of the sensor in amperes source sensor to measure the voltage and in! Be listed multiple times to get it to the usb port at front is how you by your and... Been using an ESP8266 or ESP32 microcontroller better safe than sorry 290W ( display ) (... Could destroy it has an external ADC for added resolution is how you charge the battery to! Power ( Optional, int ): use the energy value of the sensor in amperes shunt... Is rather High that when you start making changes and has very documentation... E says i can connect a HAN device ( https: //www.nts.com/services/certification/pge/han-devices/ ) than sorry ). But from the same brand decimals of accuracy as around the cable into a.! Ina219 ( High Side DC voltage ( and current I2C Module ) board!
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