LiPo Battery 3.7V 105mAh - Tiny Pouch w/ JST-PH dual axis while the relay side needs

while the relay side needs a separate 12V DC adaptor

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solder boards are preferable

Output (at Angular Velocity=0): 1

Check the pin labels on the Vibration Switch - HDX2 and match them to your controller voltage

LiPo Battery 3.7V 105mAh - Tiny Pouch w/ JST-PH dual axis while the relay side needs3. 7V Lithium Ion Polymer Battery 105mAh The Lithium Ion Polymer Battery 3. 7V 105mAh is a rechargeable lithium cell with a JST connector, designed for portable electronics, wearables, IoT devices, and maker projects. Pair it with a LiPo charger like the TP4056 or Adafruit Micro Lipo. Safety: Lithium batteries can be dangerous if punctured, short circuited, or overcharged. Always use a proper LiPo charger with protection circuitry. 3. 7V battery size