Arduino ram board selection

Projects Programming
1

I am looking for an Arduino with a small footprint that has a decent amount of dynamic ram.
The mega works for me but the board is too large.
Looking at specs I am confused.
Flash/dynamic ram seems to be somewhat interchangeable terminology depending on where you look.

type or paste code here
2

AVRs have static RAM, not dynamic.

3

Try a Teensy.

4

Is amount of RAM you need a national secret?

5

You can get smaller boards than the Mega that use the atmega2560, sort of the equivalent of the mini or pro mini version of the atmega328.

6

+1.

Cutest thing ever. I found some for a bit less. Very nice build quality.

a7

7

Second that.

8

On order.

9

No. Just did not know that was my problem.Do not know how much i actually need,

10

I have pro mini but not Addafruit.
The pinout is wrong for the ftdi lead though.

11

Do you have a pinout for that please ?
Is it a teensy ?

12

Pro mini will not help, it is the same atmega328 as the UNO.

13

No, that little board is functionally identical to an Arduino Mega 2560. It uses a different USB chip, which can matter but usually doesn't.

https://robotdyn.com/pub/media/0G-00005642==MEGA-PROMINI-ATmega2560/DOCS/PINOUT==0G-00005642==MEGA-PROMINI-ATmega2560.pdf

is the pinout of a different "mini mega" idea. It looks like one uses an FTDI interface for programming. Again, a distinction of varying import.

The Teensy family has bigger faster stuff.

a7

14

To get more RAM, you would need a Teensy 3 or 4. The original Teensy was the same AVR as the Arduino Leonardo, and doesn't have much more RAM than a Nano/Uno.

Other processors with more RAM:

  1. Nano Every: 6k of RAM vs the Uno's 2k. That's "almost" as much as an Arduino Mega, in a much smaller and cheaper board.
  2. Teensy++2 and Teensy LC have 8k of RAM. But neither one seems to be particularly popular.
  3. Anything with an ARM chip: Arduino Zero, Arduino MKR boards, PJRC Teensy3, PJRC Teensy4, assorted SAMD21 and SAMD51 boards from Adafruit and Sparkfun, and the "Artemis" boards from Sparkfun These usually start with 32k of RAM, and go up to 256K on the SAMD51 boards, 384k on Artemis and 1M on the Teensy4.
  4. ESP8266 and ESP32 chips have large RAMs, but some amount is used by the built-in WiFi firmware.
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