Catchy title, and the answer is certainly “yes” because of generally better price/performance and that people like newer designs. But let’s back off a little. Currently the lowest price genuine Arduino (not clone) board is the Arduino Nano Every. It’s less than half the price of the traditional Arduino Uno, and can replace the Uno …
While one usually thinks “ATmega328” when presented with “Arduino”, and that microcontroller does represent the highest volume of boards, more models use the SAMD21G18 microcontroller than any other. That’s 11 of 23 different Arduino boards. So having finished the 37 Sensors book, and taken some time off for other things, I am back to writing. …
OK, it’s done and available on Amazon. This book covers the 37 Sensor Kits, at least most of the sensors available. 54 in all, although the count depends on whether variations of the same sensor count or not. While it doesn’t go “Far Inside” it does show how they can be used and provides better …
I just realized that I haven’t made a blog entry in a month. I’m just completing the next book on Arduino sensors. Kindle ebook and printed book, same contents, of course. The ebook is actually ready, but I’m taking a second round trip on the printed book, making it a bit easier to read. Expect …
While testing out the 37 sensor kits, I’ve got three of them with different sensors, I have discovered some design shortcomings which might end up in destroying either the sensor or the attached microcontroller (the Arduino board). The issues are with some of the sensors that aren’t sensors in the traditional sense. These are output …
I’ve gotten so intrigued by my “37 sensor” kit that I’ve purchased two more different ones. Lots of commonality, quite a few of the 37 that don’t match the definition of a “sensor”. So I don’t know how many real sensors I’ve got! Because of the poor to no documentation provided and all bad reviews …
I recently got enthused to check out all of the sensors in my Elegoo 37 Sensor Kit (version 1) I bought 5 years ago. I suppose I should have checked them all out at the time because seven of the sensors, the ones on the red circuit boards, didn’t function at all. I’ve heard that …
A few years ago (I don’t remember exactly when) the US raised the tariff rate on Chinese electronics by a large amount, yet I never saw much or any change in price on Chinese Arduino clone boards. Until now. Looking at my favorite importer, Elegoo, their prices went up enormously this month. Most other clones …
I’ve previously shown that the SAMD21 is slower than the ATMega328P when accessing GPIO ports, however it does have a major advantage performing arithmetic. There’s quite an advantage to a 32-bit processor over an 8-bit processor. I was also interested in seeing the performance impact of using floating point, which is done in software on …
Here’s a topic relevant to both the new books I’m writing. Consider the following small program: char foo[] = {1, 2, 3, 4, 5, 6, 7, 8}; void setup() { Serial.begin(9600); while (!Serial); Serial.println(*(uint32_t *)&foo[0], HEX); Serial.println(*(uint32_t *)&foo[1], HEX); Serial.println(*(uint32_t *)&foo[2], HEX); Serial.println(*(uint32_t *)&foo[3], HEX); } void loop() { } If you run this on …