my esp8266 reads the temperature sensor and print the output in serial.
In arduino serial monitor the output is correct, but in node red its showing -127 all the time.
Thank you in advance,
Karthhic
my esp8266 reads the temperature sensor and print the output in serial.
In arduino serial monitor the output is correct, but in node red its showing -127 all the time.
Show us what the node red log shows when you restart node red (the node-red-log command will show the log). Also show us how you have got the serial node configured (either a screenshot or export the node and paste here).
Are you running the serial monitor on the same machine that node-red is running on?
What OS are you running under.
Do you see a message in the debug node at the times you expect?
I am using Windows 10 the node-red is running in the same laptop.
an ESP8266 is sending serial messages to this computer connected using USB.
For the time being i created a webserver in the ESP8266 responding the temperature and node red is GET ing it using http request.
13 Oct 12:31:47 - [info] Started flows
13 Oct 12:31:47 - [info] [sqlitedb:efd90b5c.51cee] opened C:\Users\User1\Documents\temperature.db ok
13 Oct 12:31:47 - [info] serial port COM3 opened at 115200 baud 8N1
13 Oct 12:32:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:33:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:34:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:35:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:36:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:37:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:38:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:39:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:40:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:41:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:42:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:43:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:44:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:45:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:46:47 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:46:58 - [error] serial port COM3 closed unexpectedly === > I plugged out the cable.
13 Oct 12:47:13 - [info] serial port COM3 opened at 115200 baud 8N1 === > Connected back again.
13 Oct 12:47:22 - [info] Stopping flows
13 Oct 12:47:22 - [info] serial port COM3 closed === > removed the block.
13 Oct 12:47:22 - [info] Stopped flows
13 Oct 12:47:22 - [info] Starting flows
13 Oct 12:47:22 - [info] Started flows
13 Oct 12:47:22 - [info] [sqlitedb:efd90b5c.51cee] opened C:\Users\User1\Documents\temperature.db ok
13 Oct 12:48:23 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:49:22 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:50:22 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:51:22 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:52:22 - [warn] [http response:96389476.eddb5] No response object
13 Oct 12:53:22 - [warn] [http response:96389476.eddb5] No response object
Sorry I don't know about serial on Windows, hopefully someone else can help.
Hi,
I played with serial a lot in both windows and linux.
its giving the minimum value of the sensor.
i am using web server now.
https://karthhic.github.io/Project1/myroom.html
Here is the output. I made it work in other way.
