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Multiple DS18B20 #1222

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Amadeus71r opened this issue Nov 20, 2017 · 14 comments
Closed

Multiple DS18B20 #1222

Amadeus71r opened this issue Nov 20, 2017 · 14 comments
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stale Action - Issue left behind - Used by the BOT to call for attention

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@Amadeus71r
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Hello. How i can set resolution ds18b20 to 11bit? TempRes not working.
@ionciubotaru
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you can't, it's a digital sensor, not an analog one.

@Amadeus71r
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Amadeus71r commented Nov 21, 2017 •
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This is not true. The DS18B20 has a resolution of 9,10,11 or 12 bit. In Arduino set by the command setResolution.

@arendst
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arendst commented Nov 21, 2017 •
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According to the datasheet:

The resolution of the temperature sensor is user-configurable to 9, 10, 11, or 12 bits, corresponding to increments of 0.5°C, 0.25°C, 0.125°C, and 0.0625°C, respectively. The default resolution at power-up is 12-bit.

You can use TempRes 3 to get three decimals which I believe are more than enough as the sensor might have a resolution of 0.0625 it doesn't mean it is that accurate.

@Amadeus71r
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When using TempRes 3, I only add zeros. The temperature continues to be measured to within 0.5 degrees. As if the accuracy of 9 bits is set.

@arendst
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arendst commented Nov 21, 2017

It also depends on your DS18x20 sensor. The S version does not have that many resolution.

@Amadeus71r
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The sensors are defined as DS18B20. On firmware EspEasy all works correctly.

@arendst
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arendst commented Nov 21, 2017

Then I suggest you set the DS18B20 resolution in ESPEasy to 12 bits and then move it over to Tasmota. Here is my result:
image

@Amadeus71r
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screenshot-192 168 1 162-2017-11-21-15-55-38

@Amadeus71r
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I'll try it.

@arendst
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arendst commented Nov 24, 2017

Next (pre)release will set resolution to 12-bit if not yet set.

arendst added a commit that referenced this issue Nov 24, 2017
@arendst
v5.9.1i - Rewrite DS18x20 sensor code
512566c 
5.9.1i
 * Fix Arilux LC11 restart exception 0 after OTA upgrade
 *
Disabled CRC lookup-table in OneWire.h (#define ONEWIRE_CRC8_TABLE 0) to
save some code space
 * Rewrite xsns_05_ds18x20.ino adding support for
DS1822, correct address calculation and force setting 12-bit resolution
(#1222)
 * DS18x20 sensor reconfiguration now only probed at restart
removing dynamic connection and intermittent sensor loss (#1215)
@mkh595
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mkh595 commented Nov 25, 2017

you can't, it's a digital sensor, not an analog one.
@ionciubotaru : You very often write nonsense

@ionciubotaru
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@mkh595 - thank you for sharing your opinion. I try to answer as many issues as I can, of course sometimes I make mistakes. Please try to answer as many issues as you can - this is a better way to help the community.

arendst added a commit that referenced this issue Nov 27, 2017
@arendst
v5.9.1j - Add Dual R2, Rewrite DS18x20 and fixes
0f531e2 
5.9.1j
 * Revert changes to xsns_05_ds18x20.ino and rename to
xsns_05_ds18x20_legacy.ino still needing library OneWire and providing
legacy JSON message:
 *
"DS18x20":{"DS1":{"Type":"DS18B20","Address":"284CC48E04000079","Temperature":19.5},"DS2":{"Type":"DS18B20","Address":"283AC28304000052","Temperature":19.6}}

* Add new xdrv_05_ds18x20.ino free from library OneWire and add the
following features:
 *  Add support for DS1822
 *  Add forced setting of
12-bit resolution for selected device types (#1222)
 *  Add read
temperature retry counter (#1215)
 *  Fix lost sensors by performing
sensor probe at restart only thereby removing dynamic sensor probe
(#1215)
 *  Fix sensor address sorting using ascending sort on sensor
type followed by sensor address
 *  Rewrite JSON resulting in shorter
message allowing more sensors in default firmware image:
 *
"DS18B20-1":{"Id":"00000483C23A","Temperature":19.5},"DS18B20-2":{"Id":"0000048EC44C","Temperature":19.6}

* Add additional define in user_config.h to select either single sensor
(defines disabled), new multi sensor (USE_DS18X20) or legacy multi
sensor (USE_DS18X20_LEGACY)
 * Add support for Sonoff Dual R2 (#1249)
 *
Fix ADS1115 detection (#1258)
arendst added a commit that referenced this issue Dec 1, 2017
@arendst
v5.10.0
3403ca1 
5.10.0 20171201
 * Upgrade library ArduinoJson to 5.11.2
 * Upgrade
library IRRemoteEsp8266 to 2.2.1 + 2 commits but disabled some protocols
(code size reduction)
 * Upgrade library NeoPixelBus to 2.2.9
 * Upgrade
library OneWire to 2.3.3 + 6 commits and disabled CRC lookup-table
(#define ONEWIRE_CRC8_TABLE 0) (code size reduction)
 * Update library
PubSubClient to 2.6 + 9 commits and additional delay (#790)
 * Update
core_esp8266_wiring_digital.c to latest (staged) level
 * Patch library
I2Cdevlib-Core for esp8266-core 2.4.0-rc2 compatibility
 * Remove
command EnergyReset 1..3 now replaced by ENergyReset1 to EnergyReset3
 *
Remove spaces in JSON messages (code size reduction)
 * Renamed
xsns_05_ds18x20.ino to xsns_05_ds18x20_legacy.ino still using library
OneWire and providing dynamic sensor scan
 * Fix possible iram1_0_seg
compile error by shrinking ICACHE_RAM_ATTR code usage
 * Fix PWM
watchdog timeout if Dimmer is set to 100 or Color set to 0xFF (#1146)
 *
Fix Sonoff Bridge Learn Mode hang caused by unrecognised RF code
(#1181)
 * Fix blank console log window by using XML character encoding
(#1187)
 * Fix wrong response name for command HlwISet (#1214)
 * Fix
DHT type sensor timeout recognition by distinguish "signal already
there" from "timeout" (#1233)
 * Add fixed color options 1..12 to
command Color
 * Add + (plus) and - (minus) to commands Dimmer
(+10/-10), Speed and Scheme
 * Add + (plus) and - (minus) to command
Color to select 1 out of 12 preset colors
 * Add + (plus) and - (minus)
to command Ct to control ColdWarm led ColorTemperature (+34/-34)
 * Add
commands EnergyReset1 0..42500, EnergyReset2 0..42500 and EnergyReset3
0..42500000
 *  to (Re)set Energy Today, Yesterday or Total respectively
in Wh (#406, #685, #1202)
 * Add optional ADS1115 driver as alternative
for unsupported I2Cdevlib in esp8266-core 2.4.0-rc2
 * Add support for
INA219 Voltage and Current sensor to be enabled in user_config.h with
define USE_INA219
 * Add support for Arilux LC11 (Clearing RF home code
when selecting no Arilux module)
 * Add support for WS2812 RGBW
ledstrips to be enabled in user_config.h with define USE_WS2812_CTYPE
(#1156)
 * Add SettingsSaveAll routine to command SaveData to be used
before controlled power down (#1202)
 * Add option PUSHBUTTON_TOGGLE
(SwitchMode 7) to allow toggling on any switch change (#1221)
 * Add new
xdrv_05_ds18x20.ino free from library OneWire and add the following
features:
 *  Add support for DS1822
 *  Add forced setting of 12-bit
resolution for selected device types (#1222)
 *  Add read temperature
retry counter (#1215)
 *  Fix lost sensors by performing sensor probe at
restart only thereby removing dynamic sensor probe (#1215)
 *  Fix
sensor address sorting using ascending sort on sensor type followed by
sensor address
 *  Rewrite JSON resulting in shorter message allowing
more sensors in default firmware image:
 *
"DS18B20-1":{"Id":"00000483C23A","Temperature":19.5},"DS18B20-2":{"Id":"0000048EC44C","Temperature":19.6}

* Add additional define in user_config.h to select either single sensor
(defines disabled), new multi sensor (USE_DS18X20) or legacy multi
sensor (USE_DS18X20_LEGACY)
 * Add clock support for more different
pixel counts (#1226)
 * Add support for Sonoff Dual R2 (#1249)
 * Add
FriendlyName to web page tab and add program information to web page
footer (#1275)
@stale
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stale bot commented Apr 23, 2018

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale stale bot added the stale Action - Issue left behind - Used by the BOT to call for attention label Apr 23, 2018
@stale
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stale bot commented May 7, 2018

This issue will be auto-closed because there hasn't been any activity for a few months. Feel free to open a new one if you still experience this problem.

@stale stale bot closed this as completed May 7, 2018
curzon01 pushed a commit to curzon01/Tasmota that referenced this issue Sep 6, 2018
@arendst
v5.9.1i - Rewrite DS18x20 sensor code
f374912 
5.9.1i
 * Fix Arilux LC11 restart exception 0 after OTA upgrade
 *
Disabled CRC lookup-table in OneWire.h (#define ONEWIRE_CRC8_TABLE 0) to
save some code space
 * Rewrite xsns_05_ds18x20.ino adding support for
DS1822, correct address calculation and force setting 12-bit resolution
(arendst#1222)
 * DS18x20 sensor reconfiguration now only probed at restart
removing dynamic connection and intermittent sensor loss (arendst#1215)
curzon01 pushed a commit to curzon01/Tasmota that referenced this issue Sep 6, 2018
@arendst
v5.9.1j - Add Dual R2, Rewrite DS18x20 and fixes
43ad054 
5.9.1j
 * Revert changes to xsns_05_ds18x20.ino and rename to
xsns_05_ds18x20_legacy.ino still needing library OneWire and providing
legacy JSON message:
 *
"DS18x20":{"DS1":{"Type":"DS18B20","Address":"284CC48E04000079","Temperature":19.5},"DS2":{"Type":"DS18B20","Address":"283AC28304000052","Temperature":19.6}}

* Add new xdrv_05_ds18x20.ino free from library OneWire and add the
following features:
 *  Add support for DS1822
 *  Add forced setting of
12-bit resolution for selected device types (arendst#1222)
 *  Add read
temperature retry counter (arendst#1215)
 *  Fix lost sensors by performing
sensor probe at restart only thereby removing dynamic sensor probe
(arendst#1215)
 *  Fix sensor address sorting using ascending sort on sensor
type followed by sensor address
 *  Rewrite JSON resulting in shorter
message allowing more sensors in default firmware image:
 *
"DS18B20-1":{"Id":"00000483C23A","Temperature":19.5},"DS18B20-2":{"Id":"0000048EC44C","Temperature":19.6}

* Add additional define in user_config.h to select either single sensor
(defines disabled), new multi sensor (USE_DS18X20) or legacy multi
sensor (USE_DS18X20_LEGACY)
 * Add support for Sonoff Dual R2 (arendst#1249)
 *
Fix ADS1115 detection (arendst#1258)
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@ionciubotaru @arendst @mkh595 @Amadeus71r