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LSatan / SmartRC-CC1101-Driver-Lib

This driver library can be used for many libraries that use a simple RF ASK module, with the advantages of the cc1101 module. It offers many direct setting options as in SmartRF Studio and calculates settings such as MHz directly.
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Put cc1101 in sleep mode #55

Open Scott216 opened 3 years ago

Scott216 commented 3 years ago

My transmitter is running off a battery, so I want to minimize power consumption. I have a library to put my Arduino to sleep for 8 seconds at a time. Is there a way to also put the cc1101 chip into sleep mode?

LSatan commented 3 years ago

the sleep mode comes in the next update. but you can set it manually:

ELECHOUSE_cc1101.SpiStrobe(0x36);//Exit RX / TX, turn off frequency synthesizer and exit

ELECHOUSE_cc1101.SpiStrobe(0x39);//Enter power down mode when CSn goes high.

https://github.com/LSatan/SmartRC-CC1101-Driver-Lib/issues/43#issuecomment-680296068

Scott216 commented 3 years ago

What is CSn? For the above two lines of code, do I just use one or the other, or both? How do I come out of sleep mode? Thanks

LSatan commented 3 years ago

csn is one of the spi pins. at the moment it should work like this. Note, however, that in the first variant no signals can be received during sleep. with the second variant, however, it should work. but haven't tested it yet. the module also has a wake on radio function. but this will only come with the next update.

// enter deep sleep mode
ELECHOUSE_cc1101.SpiStrobe(0x36);//Exit RX / TX, turn off frequency synthesizer and exit

ELECHOUSE_cc1101.SpiStrobe(0x39);//Enter power down mode when CSn goes high.

//wake up
ELECHOUSE_cc1101.SetRx();

// enter sleep mode

ELECHOUSE_cc1101.SpiStrobe(0x39);//Enter power down mode when CSn goes high.

//wake up
//Nothing
Scott216 commented 3 years ago

I'm just putting my transmitter to sleep, it's not receiving anything, so the wake on radio doesn't do anything for me. I'll try out your first variant. Thank you. BTW, I just sent you a donation

Scott216 commented 3 years ago

I did a little current measuring test. I have a µCurrent device from eevblog which comes in handy for measuring small currents Awake: 6mA atmega sleep only: 1.7mA atmega + cc1101 asleep: 0.11 mA

LSatan commented 3 years ago

Thank you for the donation and the nice comment.☺️

The scores are not bad. Very important in battery operation. 👍

Since you only use the transmission function, SetRx should not be necessary to wake up with the first variant.

Regards