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+--- Forum: KC868-A16 (https://www.kincony.com/forum/forumdisplay.php?fid=25)
+--- Thread: DS18B20 not detected in EPSHOME (/showthread.php?tid=5077)
DS18B20 not detected in EPSHOME - gigib - 03-08-2024
Hello
Thank you for your support so far. I was able to see DS18B20 temperature sensor with KCS firmware, but then I loaded ESPhome as I was planning to use 6 sensors in the same wire.
After loading ESPHome I'm not able to see a single sensor anymore ( I have left only one for tests):
Code:
[23:48:45][I][i2c.arduino:069]: Results from i2c bus scan:
[23:48:45][I][i2c.arduino:075]: Found i2c device at address 0x21
[23:48:45][I][i2c.arduino:075]: Found i2c device at address 0x22
[23:48:45][I][i2c.arduino:075]: Found i2c device at address 0x24
[23:48:45][I][i2c.arduino:075]: Found i2c device at address 0x25
[23:48:47][C][dallas.sensor:076]: Pin: GPIO14
[23:48:47][C][dallas.sensor:077]: Update Interval: 60.0s
[23:48:47][W][dallas.sensor:080]: Found no sensors!
[23:48:47][C][dallas.sensor:075]: DallasComponent:
[23:48:47][C][dallas.sensor:076]: Pin: GPIO32
[23:48:47][C][dallas.sensor:077]: Update Interval: 60.0s
[23:48:47][W][dallas.sensor:080]: Found no sensors!
[23:48:47][C][dallas.sensor:075]: DallasComponent:
[23:48:47][C][dallas.sensor:076]: Pin: GPIO33
[23:48:47][C][dallas.sensor:077]: Update Interval: 60.0s
[23:48:47][W][dallas.sensor:080]: Found no sensors!
[23:48:57][E][dallas.sensor:112]: Requesting conversion failedIs the following configuration correct for KC868-A16 and onewire sensor detection?
Code:
i2c:
sda: 4
scl: 5
scan: true
id: bus_a
dallas:
- pin: GPIO14
- pin: GPIO32
- pin: GPIO33Thanks
Gigi
RE: DS18B20 not detected in EPSHOME - admin - 03-09-2024
you said, you want to use "SAME WIRE"? but you have define some different pins? what do you want to do??
RE: DS18B20 not detected in EPSHOME - gigib - 03-11-2024
Hello
Let me explain, at the moment I only have a single DS18B20 connected to the center GPIO ( I believe GPIO 32)
But it is not detected by ESPhome. I had the same connection while running KCS firmware and I could see the temperature with no issues.
RE: DS18B20 not detected in EPSHOME - admin - 03-11-2024
dallas:
- pin: GPIO32
just only config yaml as these, then check ESPHome log, whether have found DS18B20.
make sure you are really use the GPIO32.
RE: DS18B20 not detected in EPSHOME - gigib - 03-15-2024
Hello
I bought a KC868-A8 and I'm seeing the same issue. I tried different GPIOs ( 14, 33) but sensor is still not detected
The only additional configuration I have is:
da
Code:
dallas:
- pin: GPIO33what else could be the issue here?
RE: DS18B20 not detected in EPSHOME - admin - 03-16-2024
take a photo how you wire?
RE: DS18B20 not detected in EPSHOME - gigib - 03-20-2024
(03-16-2024, 01:42 AM)admin Wrote: take a photo how you wire?
I'm seeing the same issue with KC868-A16 too
RE: DS18B20 not detected in EPSHOME - admin - 03-20-2024
your wire is correct. try to change define GPIOS by these (32,33,14):
DS18B20/DHT11/DHT21/WS2812 LED strip -1: 32
DS18B20/DHT11/DHT21/WS2812 LED strip -2: 33
DS18B20/DHT11/DHT21/WS2812 LED strip -2: 14
RE: DS18B20 not detected in EPSHOME - gigib - 04-05-2024
It looks like the issue was with that specific sensor I was using for tests.
I bought 5 new DS18B20 sensors and I was able to detect all of them when directly connected to the same GPIO.
Now I tried to connect sensors from a 50-meter cat5e bus, but I can only detect 2 or 3 of them.
I might need to distribute sensors to all 4 GPIO or add a resistor. What's your suggestion?
RE: DS18B20 not detected in EPSHOME - admin - 04-05-2024
50 meter , it's too long. if you use esphome, i suggest you add a new small modulle for read ds18b20 data. let sensor near by esp32 board is better.
we have tested ds18b20 by 30 meter is ok, BUT use thick wire, not CAT5 cable, CAT5 is too thin.