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  3. Oh right @Njord insisted I tell you, fedi, about this button.

Oh right @Njord insisted I tell you, fedi, about this button.

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  • eniko@mastodon.gamedev.placeE This user is from outside of this forum
    eniko@mastodon.gamedev.placeE This user is from outside of this forum
    eniko@mastodon.gamedev.place
    wrote sidst redigeret af
    #1

    Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

    So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

    It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

    Neat!

    lmorchard@masto.hackers.townL eniko@mastodon.gamedev.placeE sinbad@mastodon.gamedev.placeS tournesol@peculiar.floristT michaelporter@ottawa.placeM 22 Replies Last reply
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    0
    • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

      Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

      So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

      It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

      Neat!

      lmorchard@masto.hackers.townL This user is from outside of this forum
      lmorchard@masto.hackers.townL This user is from outside of this forum
      lmorchard@masto.hackers.town
      wrote sidst redigeret af
      #2

      @eniko @Njord oh, that *is* neat!

      1 Reply Last reply
      0
      • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

        Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

        So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

        It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

        Neat!

        eniko@mastodon.gamedev.placeE This user is from outside of this forum
        eniko@mastodon.gamedev.placeE This user is from outside of this forum
        eniko@mastodon.gamedev.place
        wrote sidst redigeret af
        #3

        And yes @Njord immediately said "you should tell fedi I bet they'll like this"

        dequbed@mastodon.chaosfield.atD 1 Reply Last reply
        0
        • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

          Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

          So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

          It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

          Neat!

          sinbad@mastodon.gamedev.placeS This user is from outside of this forum
          sinbad@mastodon.gamedev.placeS This user is from outside of this forum
          sinbad@mastodon.gamedev.place
          wrote sidst redigeret af
          #4

          @eniko @Njord our front door bell is like that, it’s nice not having to wonder about missing a delivery because the battery died, it can’t now. Love tech that makes life simpler not more complicated

          raymaccarthy@mastodon.ieR 1 Reply Last reply
          0
          • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

            And yes @Njord immediately said "you should tell fedi I bet they'll like this"

            dequbed@mastodon.chaosfield.atD This user is from outside of this forum
            dequbed@mastodon.chaosfield.atD This user is from outside of this forum
            dequbed@mastodon.chaosfield.at
            wrote sidst redigeret af
            #5

            @eniko @Njord ooooh that reminds me that one research project that used the glucose in blood probes to power the electronics measuring the blood. I think the design goal was to make a rugged medical device that could be used even far away from electric infrastructure

            1 Reply Last reply
            0
            • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

              Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

              So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

              It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

              Neat!

              tournesol@peculiar.floristT This user is from outside of this forum
              tournesol@peculiar.floristT This user is from outside of this forum
              tournesol@peculiar.florist
              wrote sidst redigeret af
              #6

              @eniko @Njord oh wow ! Thanks for the share !

              1 Reply Last reply
              0
              • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                Neat!

                michaelporter@ottawa.placeM This user is from outside of this forum
                michaelporter@ottawa.placeM This user is from outside of this forum
                michaelporter@ottawa.place
                wrote sidst redigeret af
                #7

                @eniko @Njord That is neat - reminds me of those old TV remotes that were basically ultrasonic xylophones* 😊
                Any downside? I discovered a little while ago that my barbecue lighter (standard thing with the piezoelectic crystal) knocked out my computer’s multiport hub if it was used too near.

                * https://www.reddit.com/r/Historycord/comments/1rv82y1/the_zenith_space_commander_1950s60s_one_of_the/

                eniko@mastodon.gamedev.placeE rotopenguin@mastodon.socialR 2 Replies Last reply
                0
                • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                  Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                  So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                  It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                  Neat!

                  rorstrom@mastodon.socialR This user is from outside of this forum
                  rorstrom@mastodon.socialR This user is from outside of this forum
                  rorstrom@mastodon.social
                  wrote sidst redigeret af
                  #8

                  @eniko @Njord Let me introduce you to my doorbell (which may be upside down, who can tell with such a logo?). Does the same thing, and I can just pull the inside part from the wall socket if I don't feel like anyone ringing my doorbell.

                  1 Reply Last reply
                  0
                  • michaelporter@ottawa.placeM michaelporter@ottawa.place

                    @eniko @Njord That is neat - reminds me of those old TV remotes that were basically ultrasonic xylophones* 😊
                    Any downside? I discovered a little while ago that my barbecue lighter (standard thing with the piezoelectic crystal) knocked out my computer’s multiport hub if it was used too near.

                    * https://www.reddit.com/r/Historycord/comments/1rv82y1/the_zenith_space_commander_1950s60s_one_of_the/

                    eniko@mastodon.gamedev.placeE This user is from outside of this forum
                    eniko@mastodon.gamedev.placeE This user is from outside of this forum
                    eniko@mastodon.gamedev.place
                    wrote sidst redigeret af
                    #9

                    @MichaelPorter @Njord haven't noticed anything no

                    1 Reply Last reply
                    0
                    • michaelporter@ottawa.placeM michaelporter@ottawa.place

                      @eniko @Njord That is neat - reminds me of those old TV remotes that were basically ultrasonic xylophones* 😊
                      Any downside? I discovered a little while ago that my barbecue lighter (standard thing with the piezoelectic crystal) knocked out my computer’s multiport hub if it was used too near.

                      * https://www.reddit.com/r/Historycord/comments/1rv82y1/the_zenith_space_commander_1950s60s_one_of_the/

                      rotopenguin@mastodon.socialR This user is from outside of this forum
                      rotopenguin@mastodon.socialR This user is from outside of this forum
                      rotopenguin@mastodon.social
                      wrote sidst redigeret af
                      #10

                      @MichaelPorter the igniter puts out a lot of RF noise, dunnit?

                      Back in the good old days you could blast out enough RF to basically picoweld iron filings at a distance, and nobody would stop you. https://en.wikipedia.org/wiki/Coherer

                      michaelporter@ottawa.placeM 1 Reply Last reply
                      0
                      • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                        Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                        So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                        It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                        Neat!

                        yngmar@social.tchncs.deY This user is from outside of this forum
                        yngmar@social.tchncs.deY This user is from outside of this forum
                        yngmar@social.tchncs.de
                        wrote sidst redigeret af
                        #11

                        @eniko @Njord We've got a doorbell like that on our fence gate. Didn't have enough power to fire through the steel post its attached to, so I had to rig an external antenna to it. Now it works fine 🙂

                        1 Reply Last reply
                        0
                        • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                          Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                          So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                          It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                          Neat!

                          dan@mastodon.durrans.comD This user is from outside of this forum
                          dan@mastodon.durrans.comD This user is from outside of this forum
                          dan@mastodon.durrans.com
                          wrote sidst redigeret af
                          #12

                          @eniko @Njord The original Philips Hue Tap also worked like this. It's super neat!

                          1 Reply Last reply
                          0
                          • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                            Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                            So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                            It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                            Neat!

                            dianea@lgbtqia.spaceD This user is from outside of this forum
                            dianea@lgbtqia.spaceD This user is from outside of this forum
                            dianea@lgbtqia.space
                            wrote sidst redigeret af
                            #13

                            @eniko @Njord

                            I remember the old television remote controls had several ultrasonic whistles that pushing a button would be picked up in the television's vacuum tube amplifier and activate solenoids to mechanically change channels or rotate the volume knob...

                            eniko@mastodon.gamedev.placeE 1 Reply Last reply
                            0
                            • rotopenguin@mastodon.socialR rotopenguin@mastodon.social

                              @MichaelPorter the igniter puts out a lot of RF noise, dunnit?

                              Back in the good old days you could blast out enough RF to basically picoweld iron filings at a distance, and nobody would stop you. https://en.wikipedia.org/wiki/Coherer

                              michaelporter@ottawa.placeM This user is from outside of this forum
                              michaelporter@ottawa.placeM This user is from outside of this forum
                              michaelporter@ottawa.place
                              wrote sidst redigeret af
                              #14

                              @rotopenguin I've *never* heard of these! Thanks 😊
                              Interesting to see the wide variety of coherers.

                              1 Reply Last reply
                              0
                              • dianea@lgbtqia.spaceD dianea@lgbtqia.space

                                @eniko @Njord

                                I remember the old television remote controls had several ultrasonic whistles that pushing a button would be picked up in the television's vacuum tube amplifier and activate solenoids to mechanically change channels or rotate the volume knob...

                                eniko@mastodon.gamedev.placeE This user is from outside of this forum
                                eniko@mastodon.gamedev.placeE This user is from outside of this forum
                                eniko@mastodon.gamedev.place
                                wrote sidst redigeret af
                                #15

                                @dianea @Njord neat!

                                1 Reply Last reply
                                0
                                • dequbed@mastodon.chaosfield.atD This user is from outside of this forum
                                  dequbed@mastodon.chaosfield.atD This user is from outside of this forum
                                  dequbed@mastodon.chaosfield.at
                                  wrote sidst redigeret af
                                  #16

                                  @LunaDragofelis @eniko @Njord yes, but not the kind of power you need for prosthetics, more like picoampere. There's a lot of extremely fundamental research that would still be needed for the kind of application you're thinking of ^^'

                                  1 Reply Last reply
                                  0
                                  • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                                    Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                                    So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                                    It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                                    Neat!

                                    A This user is from outside of this forum
                                    A This user is from outside of this forum
                                    averagejoe@gardenstate.social
                                    wrote sidst redigeret af
                                    #17

                                    @eniko @Njord Early TV remote controls (1960s) were similar. Each button triggered a spring to hit an ultrasonic tuning fork which the TV could identify.

                                    My childhood experiments indicated a range of 10 - 20 feet (~ 3 - 6 meters).

                                    1 Reply Last reply
                                    0
                                    • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                                      Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                                      So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                                      It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                                      Neat!

                                      davidadriao@mastodon.socialD This user is from outside of this forum
                                      davidadriao@mastodon.socialD This user is from outside of this forum
                                      davidadriao@mastodon.social
                                      wrote sidst redigeret af
                                      #18

                                      @eniko @Njord I have a doorbell like that! The issue is that since it requires some effort in pushing, some people think it's just touch activated and don't really ring it 🙂

                                      1 Reply Last reply
                                      0
                                      • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                                        Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                                        So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                                        It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                                        Neat!

                                        janet_catcus@hachyderm.ioJ This user is from outside of this forum
                                        janet_catcus@hachyderm.ioJ This user is from outside of this forum
                                        janet_catcus@hachyderm.io
                                        wrote sidst redigeret af
                                        #19

                                        @eniko @Njord they should make those also for foot activation, would be more accessible too if used as a doorbell

                                        1 Reply Last reply
                                        0
                                        • eniko@mastodon.gamedev.placeE eniko@mastodon.gamedev.place

                                          Oh right @Njord insisted I tell you, fedi, about this button. It's a big orange button (AC remote for scale) that toggles an extension cord's power on/off when pushed

                                          So far so boring right? Well it had been acting up a bit so we opened it up to change the battery and... no battery?

                                          It apparently uses the mechanical force of pushing the button (it requires a bit of a push!) to trigger a piezoelectric charge which is apparently enough to send a wireless signal to the receiver

                                          Neat!

                                          btsherratt@mastodon.gamedev.placeB This user is from outside of this forum
                                          btsherratt@mastodon.gamedev.placeB This user is from outside of this forum
                                          btsherratt@mastodon.gamedev.place
                                          wrote sidst redigeret af
                                          #20

                                          @eniko @Njord ARM has ultra low-power CPUs that can run off energy harvesting, it’s honestly amazing how little power you need for modern devices and it kinda feels like magic…

                                          1 Reply Last reply
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