Noob question... I got a esp32 and I flashed it with esphome to run a ruuvi tag.

I now also want to run a MH-Z19 sensor to monitor Co2. Can I add the MH-Z19 code from the esphome helper code site to the same esp32 and run both the MH-Z19 and ruuvi on it? or do I need 2 separate esp32's?

Thanks,
Jeff

Im trying to get pump to run backwards for specific time (10 seconds) to purge line then pump out solution. Ive basically copied LEDG code from Github and got the pump to run normally as intended. Ive hit a wall trying to throw together IDE code trying to add the reverse component. I dont have the P...

stud wrote: ↑

Sun Feb 07, 2021 10:24 pm

i have good news on the Atlas Scientific EZO-CO2 sensor :
https://atlas-scientific.com/probes/co2-sensor/
worked for me with tasmota on a Wemos Mini D1 ( esp8266) .

NICE DUDE! Good to know u got her handled.

today i was looking at the new Atlas Scientific EZO-Flow https://atlas-scientific.com/flow-meters/ and the beauty part is that its compatible to Tasmota : https://tasmota.github.io/docs/EZO/ i just received my Hydro Kit today , going to try and make Tasmota work on it https://atlas-scientific.com/k...

Im starting to think I need to get an accurate measurement of water entering my system for batch nutrient dosing. Anyone using a flow meter or are most just relaying on a gauge/scale?

Jeff

184.jpg I suspect it doesn't need to be a 1MOhm resistor, it's only what I happened to find on the shelf and it worked. If there's someone more intimate with electronics feel free to peep up. So it turns out I didnt have my ADE buad rate set to the right setting in my output window. I got her worki...

I'm using a 1Mohm resistor between 3.3V and A0, the floater between A0 and GND. This reads a value between 4 (tank empty) and 270 (tank full). void setup() { Serial.begin(115200); Serial.println("Hello World"); } int sensorValue; void loop() { sensorValue = analogRead(A0); //client.publish("water/l...

Oh, the esp8266 only does 0-1V on the analog input. So then yes, I guess you would need additional resistance to drop 2.3V, then it feeds into the divider. I think, I'm not an EE. Looking at the analog input voltage range some more, it seems if you're using a bare esp8266 chip (which I doubt is the...

Oh, the esp8266 only does 0-1V on the analog input. So then yes, I guess you would need additional resistance to drop 2.3V, then it feeds into the divider. I think, I'm not an EE. Looking at the analog input voltage range some more, it seems if you're using a bare esp8266 chip (which I doubt is the...

You reminded me I need to get some of those ceiling rails. Nice room