Thanks for the suggestion. The ESP32 is something I learned about for the first time using the Uno R4 in this project. I think I am going to try it out for one of my next projects.
Great idea and way to handle the problem. Just wondering what happens if the temperature drop is due to a weather related power drop and wireless access point is lost at location being monitored? Maybe a battery backup and cell service provided internet with a sensor that lets you know it’s a power failure. Just a thought. I know you can’t cover every angle.
I'm getting a crash after two successful emailings. #### Error, fail to set up the SSL/TLS structure ! E: fail to set up the SSL/TLS structure Connection error, Status Code: 220, Error Code: -402, Reason: fail to set up the SSL/TLS structure Suggestions?
I'm no expert, but I would think using a sensor with an integrated digital interface would avoid all the calibration and resistor offset issues. One I am thinking of using in a project is the DS18B20 based Temperature Sensor. They come in a waterproof package and are pretty inexpensive at 5pc for $11 on amazon. This is supposedly accurate to 0.5C between -55 ℃ ~ +125 ℃ and uses 3 wires to power and interface to the Arduino with the one-wire serial interface and requires only a 4.7k pull up resistor.
Agreed and thanks for the input. The TMP36G has an accuracy of 3°C (5.4°F) per the datasheet. The two I tested were right at this limit reading higher than actual based on my other thermostat and a Fluke 52 temperature sensor. 5°F is enough that you can tell it isn’t reading right based on what the room feels like, so a little calibration made sense. The MAX31820 datasheet reports a ±0.5°C which would eliminate the need for calibration. Both sensors are cost effective.
Cool build! The Seeed ESP32C3 it a $5 microcontroller that could probably do a similar thing in a smaller footprint.
Thanks for the suggestion. The ESP32 is something I learned about for the first time using the Uno R4 in this project. I think I am going to try it out for one of my next projects.
Genius!!
Great idea and way to handle the problem. Just wondering what happens if the temperature drop is due to a weather related power drop and wireless access point is lost at location being monitored? Maybe a battery backup and cell service provided internet with a sensor that lets you know it’s a power failure. Just a thought. I know you can’t cover every angle.
I'm getting a crash after two successful emailings.
#### Error, fail to set up the SSL/TLS structure
! E: fail to set up the SSL/TLS structure
Connection error, Status Code: 220, Error Code: -402, Reason: fail to set up the SSL/TLS structure
Suggestions?
I'm no expert, but I would think using a sensor with an integrated digital interface would avoid all the calibration and resistor offset issues.
One I am thinking of using in a project is the DS18B20 based Temperature Sensor. They come in a waterproof package and are pretty inexpensive at 5pc for $11 on amazon. This is supposedly accurate to 0.5C between -55 ℃ ~ +125 ℃ and uses 3 wires to power and interface to the Arduino with the one-wire serial interface and requires only a 4.7k pull up resistor.
Agreed and thanks for the input. The TMP36G has an accuracy of 3°C (5.4°F) per the datasheet. The two I tested were right at this limit reading higher than actual based on my other thermostat and a Fluke 52 temperature sensor. 5°F is enough that you can tell it isn’t reading right based on what the room feels like, so a little calibration made sense.
The MAX31820 datasheet reports a ±0.5°C which would eliminate the need for calibration. Both sensors are cost effective.
Long time no talk sir...tried calling ya a while back. How have you been?