How to put ATtiny85 to sleep?
In order to put the ATTiny to sleep we need to include two libraries: avr/sleep. h and avr/interrupt. h. One is required to give us access to the sleep functions and the the other is required to control the interrupts to awake from sleep.
What is an ATtiny used for?
ATtiny85 comes with a serial peripheral interface (SPI) that is mainly used for communication between the microcontroller and other peripheral devices such as SD cards, sensors, and shift registers.
When does the ATtiny 85 get out of sleep mode?
I want the Attiny 85 to get out of the sleep mode when the tactile switch is pressed again. The switch is on pin 7 i.e. PB2 of attiny 85. Please refer to the datasheet, section 7.1 Sleep Modes at page 34. That means, if you want the part to wake up when button has been pressed, then best option will be to configure the pin change interrupt.
Is there a way to put the ATtiny to sleep?
Watchdog timer- This is used to wake from sleep so cannot switch off. In order to put the ATTiny to sleep we need to include two libraries: avr/sleep.h and avr/interrupt.h. One is required to give us access to the sleep functions and the the other is required to control the interrupts to awake from sleep.
Do you need a 100nF cap for attiny85?
You should also have a 100nf cap connected across pin’s 4 & 8 (VCC/GND). (Possum Lodge oath) Quando omni flunkus, moritati. May not be the issue, but it is PB1, which is on physical pin 6 of the dip chip, who knows what pin number the Arduino platform assigns it.
What happens when the led is off on the ATtiny 85?
Every time the tactile switch is pressed it jumps the LED to next state of operation. Since it is battery operated, when the LED is OFF I want the attiny 85 to consume as low current as possible. As of now it is consuming 4mA when the LED is OFF without sleep mode.