Adafruit_Sensor VS SparkFun_MLX90640_Arduino_Example

There are a few libraries. A popular, easy to use library is the Adafruit Unified Sensor Library collection that exposes an interface for BNO055 and other similar hardware. You can read it as a quaternion format (better for math geeks who like stable orientation) or as a rotation on X/Y/Z axes in either degrees or radians for people who aren't bothered by issues like gimbal lock when you hit a pure up or pure down orientation.

GitHub - adafruit/Adafruit_Sensor: Common sensor library

// REQUIRES the following Arduino libraries: // - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library // - Adafruit Unified Sensor Lib: https://github.com/adafruit/Adafruit_Sensor

// Example testing sketch for various DHT humidity/temperature sensors // Written by ladyada, public domain // REQUIRES the following Arduino libraries: // - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library // - Adafruit Unified Sensor Lib: https://github.com/adafruit/Adafruit_Sensor #include "DHT.h" #define DHTPIN 4 // Digital pin connected to the DHT sensor // Feather HUZZAH ESP8266 note: use pins 3, 4, 5, 12, 13 or 14 -- // Pin 15 can work but DHT must be disconnected during program upload. // Uncomment whatever type you're using! #define DHTTYPE DHT11 // DHT 11 //#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321 //#define DHTTYPE DHT21 // DHT 21 (AM2301) // Connect pin 1 (on the left) of the sensor to +5V // NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1 // to 3.3V instead of 5V! // Connect pin 2 of the sensor to whatever your DHTPIN is // Connect pin 3 (on the right) of the sensor to GROUND (if your sensor has 3 pins) // Connect pin 4 (on the right) of the sensor to GROUND and leave the pin 3 EMPTY (if your sensor has 4 pins) // Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor // Initialize DHT sensor. // Note that older versions of this library took an optional third parameter to // tweak the timings for faster processors. This parameter is no longer needed // as the current DHT reading algorithm adjusts itself to work on faster procs. DHT dht(DHTPIN, DHTTYPE); void setup() { delay(2000); Serial.begin(115200); delay(2000); Serial.println(F("DHTxx test!")); dht.begin(); } void loop() { // Wait a few seconds between measurements. delay(2000); // Reading temperature or humidity takes about 250 milliseconds! // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor) float h = dht.readHumidity(); // Read temperature as Celsius (the default) float t = dht.readTemperature(); // Read temperature as Fahrenheit (isFahrenheit = true) float f = dht.readTemperature(true); // Check if any reads failed and exit early (to try again). if (isnan(h) || isnan(t) || isnan(f)) { Serial.println(F("Failed to read from DHT sensor!")); return; } // Compute heat index in Fahrenheit (the default) float hif = dht.computeHeatIndex(f, h); // Compute heat index in Celsius (isFahreheit = false) float hic = dht.computeHeatIndex(t, h, false); Serial.print(F("Humidity: ")); Serial.print(h); Serial.print(F("% Temperature: ")); Serial.print(t); Serial.print(F("°C ")); Serial.print(f); Serial.print(F("°F Heat index: ")); Serial.print(hic); Serial.print(F("°C ")); Serial.print(hif); Serial.println(F("°F")); }

#include //DHT and Adafruit Sensor library(https://github.com/adafruit/Adafruit_Sensor)

We made abstractions successfully, world changing abstractions.

Do the NAND to Tetris course and see that tech is abstractions on top of abstractions. Electronics today is frequently represented by code. Check out Verilog or VHDL.

https://en.wikipedia.org/wiki/Hardware_description_language

Where electronics stayed interesting is in the realm where code meets reality -> robotics and art.

Playing with LED's, robotics competitions, quad copters, cosplay. Maybe adjacent to SDR. Raspberry Pi's and Arduinos.

Check out ADAFruit: https://www.adafruit.com/

or Sparkfun: https://www.sparkfun.com/

Check out sites like: https://hackaday.com/

There is also the greater cultures: Maker culture and hacker culture. Maker Faire is super interesting and has many many attendees.

I would say that in America, it is harder to work with electronics because the number of maker spaces and places you could buy parts (RadioShack/Fry's) greatly diminished, but afluent folks can definitely have an electronics hobby supplied by online vendors.

Sparkfun is a great resource for cheap supplies and tutorials sparkfun

It's really a golden age for EEs. If he likes to play/experiment with stuff, then a good online store is Sparkfun. My wife still gets me gift certificates from there & I love it. You can make/create A LOT of things from there. If he likes to program/software, you will find a lot there.

for specialized things, look for specialized sites or services. For example if you're buying spicy Korean ramen on Amazon because you can't find it locally, check to see if a service like Umamicart might deliver in your area. If you're ordering organic groceries from Whole Foods (Amazon), check to see if a service like Thrive Market might work for you. If you're into hobbyist electronics and want to pick up some Arduino gear, maybe check out SparkFun. Each of these companies is run by people who are passionate about the market they've specialized in and they're a better place to spend your money than Amazon.

The other reason to lean towards C++ is the land of ARduino. Arduino is a microcontroller board where people ( a lot of kids really) create real world projects. It is pretty cool as the hardware can be used to drive model servo's, read form sensors write to displays and offer a lot of fun to a technically inclined child. You can learn about Arduino here: https://www.arduino.cc/. This melds the world of programming with real world hardware and gives a kid plenty of avenues to follow. Some sites that encourage educational exploration with electronics: https://www.adafruit.com/, https://www.allelectronics.com/category/209/educational-kits/1.html, https://www.jameco.com/shop/keyword=Educational-Electronic-Kits, https://www.sparkfun.com/ and likely several hundred more. In any event mixing electronics and programming is a good way to learn both with a meaningful hobby. Robotics can really prime the interests in writing software.

Sparkfun sells tons of MCU dev/breakout and sensor boards, and the schematics are available for nearly all of them, along with "hookup guides". Look under the Documents tab for each product. You can learn a lot by studying these.

Other companies do this as well, like Sparkfun, DFRobot, Wemos/Lolin, etc. I feel that Adafruit goes the extra mile. And that has won my loyalty.

www.sparkfun.com