Humidity Sensor Sketch too big for Arduino ProMini?

[Martien Wijnands]

I bought a couple of 3.3v , 8Mhz Arduino clones;
http://www.aliexpress.com/item/Pro-Mini-ATmega168-3-3V-8MHz-Compatible-for-Arduino-ProMini/32579105597.html

When I try to upload the humiditysensor.ino from the samples folder, I get the error, sketch too big.

Sketch uses 19,568 bytes (136%) of program storage space. Maximum is 14,336 bytes.
Global variables use 655 bytes (63%) of dynamic memory, leaving 369 bytes for local variables. Maximum is 1,024 bytes.

Have I bought the wrong boards, or can I perhaps clean the code?

Thanks in advance!

[flopp]

That ATMega is 16k
If you thought that you bought a ATmega with 32k then Yes you bought wrong

[Martien Wijnands]

So it's too small?

[flopp]

Maximum is 16000, with 14336 left i guess that bootloader is using the rest

[BartE]

@Martien-Wijnands yes make sure you have an ATmega326 on your board

Like these

or from the MySensors store 10 Pcs

[Martien Wijnands]

So, no possibility to strip down THE code? I will order the 328, but shipping takes a while :(

[flopp]

@Martien-Wijnands
What is your code?

[mfalkvidd]

Try commenting out all Serial.println. By doing that, I got the sketch from

Sketch uses 14,350 bytes (100%) of program storage space. Maximum is 14,336 bytes.

to

Sketch uses 12,920 bytes (90%) of program storage space. Maximum is 14,336 bytes.

Troubleshooting without the debug output will be a real pain though.

You can also try the development branch of MySensors. It consumes less flash space than 1.5.