Hi,
I need low power cpu and buy an Attiny88 (HW module).
I tried 1 Mhz cpu clock this code
#define F_CPU 1000000
I measured current . it is 7-8mAh in 3.0Volt in Active mode.
But Pdf says 0.240mAh . What i can do to reduce current in Attiny88?
Thank you for advance.
What is it? There are probably other power consuming devices on the module?
My ATTiny88 datasheet has a section 7 called "Power Management and Sleep Modes". Might be worth a read of that especially the section "Minimizing Power Consumption".
I see two LEDs. Is one of the an always on power LED? Also the linear regulator may consume some current.
i remove leds before i upload code
I found example code for an ATTINY85 and made some modifications to work on ATTINY88
That doesn't change the CPU clock to 1MHz. It just makes the software think that the CPU clock is 1 MHz.
You need to change the fuse bits to configure the CPU clock. See chapter 6 and chapter 20. You will need a programmer to do that.
Also keep in mind that you are not going to reach the 1.8V figure while supplying 3V. System voltage has a significant impact on power consumption.
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