Reed Switch normally open or normally closed
-
@skywatch I recollect reading in another project that a NC /NO type reed switch consumes less power than a single output. In that project the author was setting the pin to "floating" when it opened to reduce the power consumption.
Is such the case? I
Thanks -
@skywatch I recollect reading in another project that a NC /NO type reed switch consumes less power than a single output. In that project the author was setting the pin to "floating" when it opened to reduce the power consumption.
Is such the case? I
Thanks@Puneit-Thukral I guess it depends on the hardware the user was using and how it was wired up!
Really it is just an on /off switch. Well, in your case 2 on/off switches with the connectors commoned at one end of the switch.
Is this for a door/window/similar type application?
-
@Puneit-Thukral I guess it depends on the hardware the user was using and how it was wired up!
Really it is just an on /off switch. Well, in your case 2 on/off switches with the connectors commoned at one end of the switch.
Is this for a door/window/similar type application?
@skywatch in my case I will be using for a door sensor.
-
@skywatch I recollect reading in another project that a NC /NO type reed switch consumes less power than a single output. In that project the author was setting the pin to "floating" when it opened to reduce the power consumption.
Is such the case? I
Thanks@Puneit-Thukral Saving power by floating the pin may return spurious triggers, pull-up resistors give a solid open/close.
The gas meter here has a simple reed, now in it's second year on 2xAA at ca 30,000 actions/year, simple high value resistor bridge with a cap across the lower to ground to minimise noise and deal with "bounce" yet minimise current used. -
@Puneit-Thukral Saving power by floating the pin may return spurious triggers, pull-up resistors give a solid open/close.
The gas meter here has a simple reed, now in it's second year on 2xAA at ca 30,000 actions/year, simple high value resistor bridge with a cap across the lower to ground to minimise noise and deal with "bounce" yet minimise current used.@zboblamont Thanks.. this is promising.. Of course, I was trying to complicate this way too much than needed. I will work with the regular reed switch.
-
@zboblamont Thanks.. this is promising.. Of course, I was trying to complicate this way too much than needed. I will work with the regular reed switch.
@Puneit-Thukral Did you see this?....
-
@skywatch Yes I did try this first.. but I am trying to merge reed sensor with BME280 running on battery (preference is of a coin cell) and I am not using Arduino pro mini or similar. I am trying NRF51822. I did search the forums and openhardware. Most of the sketches available for this board are for NRF52 series board. I already have 10 of the NRF51822 boards and I would like to use them.
On another thread I posted my sketch where I merged but it is not working for me. :-(Alas, my struggles continue. I am not a programmer but a copy/paste kind of a person. I am sightly modify code but still cannot write from scratch..getting there slowly.
Cheers!
-
@skywatch Yes I did try this first.. but I am trying to merge reed sensor with BME280 running on battery (preference is of a coin cell) and I am not using Arduino pro mini or similar. I am trying NRF51822. I did search the forums and openhardware. Most of the sketches available for this board are for NRF52 series board. I already have 10 of the NRF51822 boards and I would like to use them.
On another thread I posted my sketch where I merged but it is not working for me. :-(Alas, my struggles continue. I am not a programmer but a copy/paste kind of a person. I am sightly modify code but still cannot write from scratch..getting there slowly.
Cheers!
@Puneit-Thukral OK - post the TWO codes completely here and I will TRY and help you merge them. That said I have NO experience of the 51822 and so you may still need help. I am fairly busy at the moment but in a few days I should have time to help you out.
-
@Puneit-Thukral OK - post the TWO codes completely here and I will TRY and help you merge them. That said I have NO experience of the 51822 and so you may still need help. I am fairly busy at the moment but in a few days I should have time to help you out.
@skywatch thanks a lot for offering to help. I think I have made some headway.
I used @NeverDie sketches. The one for nrf24 or RFM69 don’t really work well with waking up the nrf51 chip or maybe I made some mistake and were consuming way too much power.Anyhow , the test sketch is running and interrupts are working fine as well as the bme280 reports fine.
Tomorrow I will move it a battery powered and observe.Cheers!
