SoftwareSerial and float numbers

Projects Programming
1

Hi:

I am using Attiny85 with SoftwareSerial, to send via bluetooth some information.

Everything works great, except when trying to send a float number.

Is there any way to solve this limitation?

Thanks in advance.

2

Everything works great, except when trying to send a float number.

How are you sending it?

3

for example

float voltios;

voltios = 2.34;

bluetooth.println(voltios);

if you change voltios to int... it works!

4

As you have discovered, println does not work with float. You would have to convert it to a string yourself and then send that.

Pete

5

As you have discovered, println does not work with float.

It most certainly does.

From SoftwareSerial.h:

class SoftwareSerial : public Stream

From Stream.h:

class Stream : public Print

From Print.h:

    size_t print(double, int = 2);

Since floats and doubles are the same size on the Arduino, this is the method that gets called when SoftwareSerial::print() is called.

OP: We can't help you with snippets. Post ALL of your code.

Your problem may not be on the Arduino end.

6

Arghh. Wotinell was I thinking of? Oh yes. It's sprintf that doesn't do floats.
My bad.

Pete