I’m pondering the direction of the new book covering the Arduino Nano Every and the ATmega4809 microcontroller. There are considerable differences in the implementation of this board compared to the ATmega328P based boards like the Arduino Nano and Uno. My first book, Far Inside The Arduino, covered using the Uno (and similar) board directly controlling …
I wrote this title to be ambiguous. I’ve been busy with personal things so slow progress on writing. I’ve just started back up on the Arduino Nano Every (ATMega4809) book. The needs of the Arduino people to have this board as compatible as possible with the older Arduino Nano has made this a surprisingly difficult …
The ATmega4809 microcontroller used in the Arduino Nano Every differs from the other AVR microcontrollers in other Arduino boards in that all memories can be addressed as part of the data space. This “cheat” means it no longer behaves like a Harvard architecture which simplifies coding. Literal strings and variables declared as const are now …
The ATmega4809 microcontroller in the Arduino Nano Every is no longer loaded via a bootloader program, but instead uses a single wire programming interface, Unified Program and Debug Interface, or UPDI. This also has debugging capability, but this is not available with the Arduino IDE. The ISCP interface (and its 6-pin header) is no longer …
Using the Arduino Library, a pin (here digital pin 13) can be pulsed at maximum rate with: void setup() { pinMode(13, OUTPUT); } void loop() { digitalWrite(13, HIGH); digitalWrite(13, LOW); } On a Nano, the pulse width is 3.2µs with a period of 6.7µs. On the Nano Every, the pulse width is …
I just received two Arduino Nano Every boards with the ATmega4809 microcontroller. Here are my first observations studying the boards. Next post I will show how I am handling the digital I/O pins and will talk about the compatibility layer that (attempts to) makes the Nano Every behave like a Nano. The Arduino Nano Every …