AZDelivery 5 x DHT22 AM2302 Temperature and Humidity Sensor Module with Cable Compatible with Arduino and Raspberry Pi including E-Book!

No eBook in English - very dissapointing!Links on their website take a bit of navigating as they are in German (they are a German company after all - so no great shakes) but they direct you through a 'free' purchase on Shopify, presumably just to capture your data for marketing purposes.When you eventually obtain a down load link is simply presents the attached image!I chose AZDelivery simply for some sample code. A quick google gets you what you need and I suspect that's all they did to put the german version of the book together.Won't be using them again!!!

Unfortunately one of the devices in the pack didn't have all the plugsWasn't worth returning as I only needed one but still a disappointmentThe demo code (when you finally get the manual) doesn't work (Raspberry 4 in Python3)You need to amend the:/usr/local/python3.7/dist-packages/Adafruit_DHT/platform_detect.pyto include the current Raspberry Pi4 identifier (found in content of /proc/cpuinfo)Then before the else: Return none near the end of the file add a new select in for the hardwareI.e.elif match.group(1) == 'BCM2711': # Pi4 return 3Then the code will work :-)

Good readings using Adafruit_DHT python module on Raspberry.Sensors are not lying on the board therefore contacts might break.In the box there is a card with a link to their website to download their quick guides; while the website is only in German, books are available in English. Not the easiest worksite to browse but not impossible to download your book (although you need to register).

Using with an arduino nano. This fails to return temperature after a few hours then needs arduino to be reset.Workaround is to automatically power off and on every hour.

Initially used to follow a project seen on line using Arduino and ESP32. Will build into a future Greenhouse project.

Good. And super quick delivery. Cheers guys

All round great product

Far more accurate than the DHT11. Using with a raspberry pi.