DS18B20Shield < AFNOG

---+ The !DS18B20 1-wire temperature sensor

The [[https://cdn.sparkfun.com/datasheets/Sensors/Temp/DS18B20.pdf][DS18B20]] is a high precision temperature sensor using Maxim's 1-wire protocol. Again a driver is already available in the micro Python library making it easy to interface to the module.

<img alt="wemosDS18B20.png" height="282" src="%ATTACHURL%/wemosDS18B20.png" title="wemosDS18B20.png" width="341" />

As before I wrote a small hardware testing program stored in my _driver_ directory

https://github.com/uraich/MicroPython_IoTDemos/tree/master/drivers/ds18b20

and only when I can read the temperature as expected I add the !WiFi and MQTT code for Cayenne and save it into the _cayenne_ directory

https://github.com/uraich/MicroPython_IoTDemos/blob/master/cayenne/ds18b20/cayenneDS18B20.py

-- %USERSIG{UliRaich - 2019-03-22}%

---++ Comments

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Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who
txt	cayenneDS18B20.py.txt	r1	manage	1.4 K	2019-03-22 - 14:28	UliRaich
txt	ds18b20Test.py.txt	r1	manage	0.5 K	2019-03-22 - 14:28	UliRaich
png	wemosDS18B20.png	r1	manage	110.5 K	2019-03-22 - 14:26	UliRaich

This topic: AFNOG > WebHome > AFNOGWorkshop2019 > WeMosD1Mini > DS18B20Shield
Topic revision: r2 - 2019-05-17 - UliRaich