oem_odm
Newbie level 2
Hi everyone,
Not an expoert here, just have quick question.
Plan to use this MCU for a job:
**broken link removed**
Application is simple & sorted. It recieves a standard IR signal (remote has 10 buttons), MCU receives -> decodes -> acts. PCBA is battery powered (a mobile application), the questions are:
1. Can the MCU in "slow", or "green" power mode still receive and decode the IR signal? (whilst the remote might not be sending an IR signal, the natural environment is full of IR signals, the MCU would need to constantly decode these). Once its received and decoded only an IR sent coded IR signal, I'd want it to wake up and do its thing.
(or re-worded, what MCU capabilities (clock/etc) are needed to decode IR signals in order to seperate natural environment IR signals from the RC IR signal).
In green, sleep, or slow mode, the MCU is only using 2 to 40 uA's, so this way, batteries will last plenty of times. If the MCU can decode and analyse in any of these modes, that would be great.
Resources:
A. Click on the PDF on **broken link removed**
(PDF datasheet also attached here)
B. Page 54 shows the functional cabalities at each different mode (green, slow etc)
C. Page 92 shows Electrical characteristics.
Ideally, hope it can decode/analyse IR signals in slow or green mode (don't think it can do it in Sleep mode).
2. If it cannot (i.e. it will need to use several mA to decode signals until the correct signal is received -> 4 mA hour -> 96 a day -> 1 x AA per month [give or take]) - will use same technique in past. A mecury [or similar] tilt/vibration switch. The contact it makes on vibration would wake up the MCU.
Does anybody have a better solution for what I'm trying to achieve?
-> IR signal scanning until correct RC IR signal is sent on ideally uA power MCU current
-> No other physical parameters can be used to wake up the chip (have thought and thought). Tilt/vibration swtich is the best. Temperate, light, water, nothing
-> Chip has been selected, so don't want to change it - but open to comments/advice.
Apologies if not written correctly/terminology.
thankyou / jack
you have put the link to the manual so do not upload it. deleted..... Mod:Aya2002
Not an expoert here, just have quick question.
Plan to use this MCU for a job:
**broken link removed**
Application is simple & sorted. It recieves a standard IR signal (remote has 10 buttons), MCU receives -> decodes -> acts. PCBA is battery powered (a mobile application), the questions are:
1. Can the MCU in "slow", or "green" power mode still receive and decode the IR signal? (whilst the remote might not be sending an IR signal, the natural environment is full of IR signals, the MCU would need to constantly decode these). Once its received and decoded only an IR sent coded IR signal, I'd want it to wake up and do its thing.
(or re-worded, what MCU capabilities (clock/etc) are needed to decode IR signals in order to seperate natural environment IR signals from the RC IR signal).
In green, sleep, or slow mode, the MCU is only using 2 to 40 uA's, so this way, batteries will last plenty of times. If the MCU can decode and analyse in any of these modes, that would be great.
Resources:
A. Click on the PDF on **broken link removed**
(PDF datasheet also attached here)
B. Page 54 shows the functional cabalities at each different mode (green, slow etc)
C. Page 92 shows Electrical characteristics.
Ideally, hope it can decode/analyse IR signals in slow or green mode (don't think it can do it in Sleep mode).
2. If it cannot (i.e. it will need to use several mA to decode signals until the correct signal is received -> 4 mA hour -> 96 a day -> 1 x AA per month [give or take]) - will use same technique in past. A mecury [or similar] tilt/vibration switch. The contact it makes on vibration would wake up the MCU.
Does anybody have a better solution for what I'm trying to achieve?
-> IR signal scanning until correct RC IR signal is sent on ideally uA power MCU current
-> No other physical parameters can be used to wake up the chip (have thought and thought). Tilt/vibration swtich is the best. Temperate, light, water, nothing
-> Chip has been selected, so don't want to change it - but open to comments/advice.
Apologies if not written correctly/terminology.
thankyou / jack
you have put the link to the manual so do not upload it. deleted..... Mod:Aya2002