Go Down

Topic: Female version Seeeduino (Read 4 times) previous topic - next topic

Riva

Another silly name...
If the male device is a Seeeduino then a female one could be called an Eggduino.

retrolefty

#6
Dec 17, 2012, 05:03 pm Last Edit: Dec 17, 2012, 05:05 pm by retrolefty Reason: 1
I've always been a fan of your arduino compatible designs and glad to see you are still actively supporting open sourced designs. This product does have a nice 'cute factor'.  ;)

One question about your posted pictures on this new product. In one picture you show a led stuck into the shield pins with no series current limiting resistor. Is such a resistor wired between the AVR output pin and the shield pin? If not I encourage you to fix that picture as it just perpetuates a problem for many beginners where the oldest original arduino board design did wire a series limiting resistor between the AVR output pin and the shield pin (only on arduino pin #13) but in later designs the built in resistor only limits the on-board led and does not protect the output pin from external connected leds.

How about calling it Godzillauino?

Lefty

t0mpr1c3

If I am looking at the picture right -- running a blue LED (which drops 3+ V) off a coin cell (max 4.2 V and with some internal resistance) is not going to cause any problems.

fungus

Matroyskuino?

(The dolls are called "matroyska"s...)
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

retrolefty


If I am looking at the picture right -- running a blue LED (which drops 3+ V) off a coin cell (max 4.2 V and with some internal resistance) is not going to cause any problems.


It's technically incorrect and teaches a bad lesson in how leds should be wired up. LEDs are current operated devices and should always have external current limiting. Relying on the internal resistance of a voltage source is not a way to teach good fundamental electronics to arduino beginners.

Lefty

Go Up