optimize photos on Flickr

Setup for low current measurement. This little BLE thingy we are building has to work forever on next to no power :). It seems that whatever we achieve in terms of low power and tiny packages it's never enough - there's always this one project where they need it just a little bit smaller with just a little bit smaller battery and just a little more range.

DSC00449-Optimized by Faisal Aziz

Optimized.IMG_1267 by My Northern Samar

230115-41436 by Fotos do Zé

Optimized by JPEGmini 3.18.9.220885065-AP 0x43959df9

230115-06411 by Fotos do Zé

Optimized by JPEGmini 3.18.9.220885065-AP 0xff602a7c

230107-26973 by Fotos do Zé

Optimized by JPEGmini 3.18.9.220885065-AP 0x6e9badee

230107-22078 by Fotos do Zé

Optimized by JPEGmini 3.18.9.220885065-AP 0x19c321e9

IMG_1397_h1 by FBU Web

Baphomet-Woodcut-Optimized by jandromontero

optimized by canon 600d

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optimized by Andrea Li Designs

Optimized-BILD1435 - Copy by Steve&Eve

DSC05226 (1)_optimized by Miguel Londres

20160920_192228_optimized by Andreas Heffter

img_3354_optimized by E.D. Moratalaz

Eddie_bursting_optimize by Even Ramiro B G

imagenes sin fondo

1st optimization attempt by .:madworm:.

When dealing with this I realized (finally) that I could remove duplicate code and use this as the replacement:

uint8_t bit_value = _BV(bit);

if(bit <= 7) { // read data-bits 0...7

if( (PINA & _BV(PA0)) ) {

soft_uart_rx_byte |= bit_value;

} else {

soft_uart_rx_byte &= ~bit_value;

}

[...]

Now the _BV(bit) expression has to be evaluated just once. But that didn't help at all. It seems the compiler had already optimized the previous code.

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