# Spiker:bit Multiple Limb Sensing

**URL:** <https://forum.backyardbrains.com/t/spiker-bit-multiple-limb-sensing/111>\
**Category:** General\
**Created:** [November 2, 2025, 9:57pm UTC](https://forum.backyardbrains.com/t/spiker-bit-multiple-limb-sensing/111 "2025-11-02T21:57:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![frankhs1999](https://forum.backyardbrains.com/user_avatar/forum.backyardbrains.com/frankhs1999/32/88_2.png) [@frankhs1999](https://forum.backyardbrains.com/u/frankhs1999)\
**Post date:** [November 2, 2025, 9:57pm UTC](https://forum.backyardbrains.com/t/spiker-bit-multiple-limb-sensing/111/1 "2025-11-02T21:57:27Z")

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I have several working sensor cables for Spikerbit from sensor pads to expansion board with Micro:bit. I want to apply sensor patches on both arms (3 patches on each) and input via a 5X hub to the 3.5mm input on Spiker:bit, translate these signals and then output several “radio” signals from the Micro:bit to various rover cars with their own Micro:bit. How can this be done with splitter cables or coding or some custom system ?

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**Author:** ![gagegreg](https://forum.backyardbrains.com/user_avatar/forum.backyardbrains.com/gagegreg/32/8_2.png) [@gagegreg](https://forum.backyardbrains.com/u/gagegreg)\
**Post date:** [December 1, 2025, 12:22am UTC](https://forum.backyardbrains.com/t/spiker-bit-multiple-limb-sensing/111/2 "2025-12-01T00:22:12Z")

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We have done projects using 2x SpikerBits and multiple signals. But the idea of running a hub to switch various signals to the SpikerBit is novel, and has not been tried (If I am understanding it correctly). Do let us know how it goes if you test it out.