The sensor package exposes three pins: VCC, GND, and Data. The DHT11 sensor in the kit is a DHT11 humidity and temperature sensing component mounted on a micro-PCB that contains the actual sensor along with a couple of additional components, a pull-up resistor and an LED, that makes the sensor easier to use. This turned out to be the most frustrating lesson thus far though I finally got it to work. The latest lesson is to use the DHT11 temperature and humidity sensor in the kit. Using the MCP3008 Analog to Digital converter was more complicated as was using the 1602 LCD display as those required learning the basics of two communication protocols: Serial Peripheral Interface (SPI) and Inter-Integrated Circuit (I2C).
Thus far the projects with the Raspberry Pi have been straightforward in that the components used were electrical parts such as resistors and LEDs with a potentiometer and a photo-resistor thrown in to liven things up with a bit of live and changing data. And there is an Elegoo 37-in-1 Sensor kit I am probably going to buy in a couple of months as I gain experience. There is some duplication of components but that is fine.
This second kit contains an Arduino Uno micro-controller as well as an RFID experiment kit. It has been so interesting that I bought a second kit, the Elegoo UNO R3 Project Complete Starter Kit with Arduino Uno to go along with the Raspberry Pi kit. Took the red pill now how deep does the rabbit hole go? I've been using the C programming language with a couple of Python examples to try out an alternative language. The work has been fun and I am beginning to learn something about electronics and hardware as well. Osoyoo has a web site with a series of lessons and I have been slowly working my way through those, putting work up on my raspberrypi github repository as I go along. A couple of months ago I purchased a Raspberry Pi 3 micro-controller along with a Raspberry Pi Starter Kit from Osoyoo.
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