# Motion Sensor Bat ## Overview https://youtu.be/n2cuiZ1W8Zs ## Build a Motorized Bat Build a motion activated flying bat! Add this Halloween decoration to a candy bowl to spook trick-or-treaters. When the motion sensor detects a hand, it actives a fluttering bat with sound effects! ![sensors_hero-clear.gif](https://cdn-learn.adafruit.com/assets/assets/000/133/333/medium640thumb/sensors_hero-clear.jpg?1730165279) ## Motion Activated A VL53L1X time of flight sensor detects when an object is nearby. Different audio is played depending on the distance, making this an advanced decor that's more than just a typical store-bought Halloween amusement. You may customize the CircuitPython code to change the distances, servo movement, sound effects and more. ![sensors_hero-sense.gif](https://cdn-learn.adafruit.com/assets/assets/000/133/334/medium640thumb/sensors_hero-sense.jpg?1730165433) ## PropMaker RP2040 This dev-board is our favorite go-to that’s designed for making prop projects. It’s got the RP2040 chip with a built-in audio amplifier and accelerometer! A 2200mAh lipo battery will provide several hours of use and can be recharged over USB. ![sensors_hero-board.jpg](https://cdn-learn.adafruit.com/assets/assets/000/133/335/medium640/sensors_hero-board.jpg?1730165601) ![](https://cdn-learn.adafruit.com/assets/assets/000/133/366/medium800thumb/sensors_hero-top.jpg?1730211458) ## Parts ### Adafruit RP2040 Prop-Maker Feather with I2S Audio Amplifier [Adafruit RP2040 Prop-Maker Feather with I2S Audio Amplifier](https://www.adafruit.com/product/5768) The Adafruit Feather series gives you lots of options for a small, portable, rechargeable microcontroller board. By picking a feather and stacking on a FeatherWing you can create advanced projects quickly. One popular combo is our [Feather M4](https://www.adafruit.com/product/3857)... In Stock [Buy Now](https://www.adafruit.com/product/5768) [Related Guides to the Product](https://learn.adafruit.com/products/5768/guides) ![Video of a white hand pressing a button to briefly turn an LED strip into white lights. Also wired up to the microcontroller are a servo motor and a speaker.](https://cdn-shop.adafruit.com/product-videos/640x480/5768-09.jpg) ### Continuous Rotation Micro Servo [Continuous Rotation Micro Servo](https://www.adafruit.com/product/2442) Need to make a _tiny_ robot? This little micro servo rotates 360 degrees fully forward or backward, instead of moving to a single position. You can use any servo code, hardware, or library to control these servos. Good for making simple moving robots. Comes with five horns and... In Stock [Buy Now](https://www.adafruit.com/product/2442) [Related Guides to the Product](https://learn.adafruit.com/products/2442/guides) ![Demo Video of the Continuous Rotation Micro Servo with a "t" shaped propeller connected to the gear and spinning.](https://cdn-shop.adafruit.com/product-videos/640x480/2442-02.jpg) ### Adafruit VL53L1X Time of Flight Distance Sensor - ~30 to 4000mm [Adafruit VL53L1X Time of Flight Distance Sensor - ~30 to 4000mm](https://www.adafruit.com/product/3967) The  **Adafruit VL53L1X Time of Flight Distance Sensor** (also known as VL53L1CX) is a _Time of Flight_ distance sensor that has a massive 4 meter range and LIDAR-like precision. The sensor contains a very tiny invisible laser source and a matching sensor.... In Stock [Buy Now](https://www.adafruit.com/product/3967) [Related Guides to the Product](https://learn.adafruit.com/products/3967/guides) ![Top view of Adafruit VL53L1X Time of Flight Distance Sensor hooked up to an OLED display. A white manicured hand waves at the sensor, and the OLED displays the distance.](https://cdn-shop.adafruit.com/product-videos/640x480/3967-05.jpg) ### Mini Oval Speaker with Short Wires - 8 Ohm 1 Watt [Mini Oval Speaker with Short Wires - 8 Ohm 1 Watt](https://www.adafruit.com/product/4227) Hear the good news! This wee speaker is a great addition to any audio project where you need 8 ohm impedance and 1W or less of power. We particularly like this speaker as it is small and comes with nice skinny wires with a connector on the end. It has a handy... In Stock [Buy Now](https://www.adafruit.com/product/4227) [Related Guides to the Product](https://learn.adafruit.com/products/4227/guides) ![Mini Oval Speaker with Short Wires ](https://cdn-shop.adafruit.com/640x480/4227-06.jpg) ### STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long [STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long](https://www.adafruit.com/product/4210) This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove. In Stock [Buy Now](https://www.adafruit.com/product/4210) [Related Guides to the Product](https://learn.adafruit.com/products/4210/guides) ![Angled shot of STEMMA QT / Qwiic JST SH 4-pin Cable.](https://cdn-shop.adafruit.com/640x480/4210-00.jpg) ### Lithium Ion Cylindrical Battery - 3.7v 2200mAh [Lithium Ion Cylindrical Battery - 3.7v 2200mAh](https://www.adafruit.com/product/1781) Need a big battery for your project? This lithium-ion battery contains a 2200mAh and a protection circuit that provides over-voltage, under-voltage, and over-current protection. Yet, it is slim and easy to fit into many project cases. This cell can provide 2 **C** of... In Stock [Buy Now](https://www.adafruit.com/product/1781) [Related Guides to the Product](https://learn.adafruit.com/products/1781/guides) ![Lithium Ion Cylindrical Battery - 3.7v 2200mAh with JST PH connector](https://cdn-shop.adafruit.com/640x480/1781-04.jpg) ### Breadboard-friendly SPDT Slide Switch [Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805) These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as... Out of Stock [Buy Now](https://www.adafruit.com/product/805) [Related Guides to the Product](https://learn.adafruit.com/products/805/guides) ![Small, black, SPDT slide switch.](https://cdn-shop.adafruit.com/640x480/805-03.jpg) ### 1.25mm Pitch 2-pin Cable Matching Pair - 40cm long [1.25mm Pitch 2-pin Cable Matching Pair - 40cm long](https://www.adafruit.com/product/4720) When 0.1" is too big, and JST PH's too chunky, these ultra-slim 1.25mm connectors are a reliable alternative. These are only 1.25mm pitch, but have a nice clicky connection. These cables are nice and long, 40cm in fact. They've got both small form factor and are a... In Stock [Buy Now](https://www.adafruit.com/product/4720) [Related Guides to the Product](https://learn.adafruit.com/products/4720/guides) ![1.25mm Pitch 2-pin Cable Matching Pair](https://cdn-shop.adafruit.com/640x480/4720-04.jpg) ### Part: M2.5x6mm Screws quantity: 6 M2.5x6mm Screws [M2.5x6mm Screws](https://amzn.to/3ZvDMvg) ### Part: M2x6mm Screws quantity: 2 M2x6mm Screws [M2x6mm Screws](https://amzn.to/47AsYhn) ### Part: 0.65mm Round Silver-Plated Memory Wire quantity: 1 0.65mm Round Silver-Plated Memory Wire [0.65mm Round Silver-Plated Memory Wire](https://www.michaels.com/product/beadalon-silver-plated-memory-wire-large-bracelet-10376078?michaelsStore=8744&inv=2) - [Next Page](https://learn.adafruit.com/motion-sensor-bat/circuit-diagram.md) ## Featured Products ### Adafruit RP2040 Prop-Maker Feather with I2S Audio Amplifier [Adafruit RP2040 Prop-Maker Feather with I2S Audio Amplifier](https://www.adafruit.com/product/5768) The Adafruit Feather series gives you lots of options for a small, portable, rechargeable microcontroller board. By picking a feather and stacking on a FeatherWing you can create advanced projects quickly. One popular combo is our [Feather M4](https://www.adafruit.com/product/3857)... In Stock [Buy Now](https://www.adafruit.com/product/5768) [Related Guides to the Product](https://learn.adafruit.com/products/5768/guides) ### Continuous Rotation Micro Servo [Continuous Rotation Micro Servo](https://www.adafruit.com/product/2442) Need to make a _tiny_ robot? This little micro servo rotates 360 degrees fully forward or backward, instead of moving to a single position. You can use any servo code, hardware, or library to control these servos. Good for making simple moving robots. Comes with five horns and... In Stock [Buy Now](https://www.adafruit.com/product/2442) [Related Guides to the Product](https://learn.adafruit.com/products/2442/guides) ### Adafruit VL53L1X Time of Flight Distance Sensor - ~30 to 4000mm [Adafruit VL53L1X Time of Flight Distance Sensor - ~30 to 4000mm](https://www.adafruit.com/product/3967) The  **Adafruit VL53L1X Time of Flight Distance Sensor** (also known as VL53L1CX) is a _Time of Flight_ distance sensor that has a massive 4 meter range and LIDAR-like precision. The sensor contains a very tiny invisible laser source and a matching sensor.... In Stock [Buy Now](https://www.adafruit.com/product/3967) [Related Guides to the Product](https://learn.adafruit.com/products/3967/guides) ### Mini Oval Speaker with Short Wires - 8 Ohm 1 Watt [Mini Oval Speaker with Short Wires - 8 Ohm 1 Watt](https://www.adafruit.com/product/4227) Hear the good news! This wee speaker is a great addition to any audio project where you need 8 ohm impedance and 1W or less of power. We particularly like this speaker as it is small and comes with nice skinny wires with a connector on the end. It has a handy... In Stock [Buy Now](https://www.adafruit.com/product/4227) [Related Guides to the Product](https://learn.adafruit.com/products/4227/guides) ### STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long [STEMMA QT / Qwiic JST SH 4-pin Cable - 100mm Long](https://www.adafruit.com/product/4210) This 4-wire cable is a little over 100mm / 4" long and fitted with JST-SH female 4-pin connectors on both ends. Compared with the chunkier JST-PH these are 1mm pitch instead of 2mm, but still have a nice latching feel, while being easy to insert and remove. In Stock [Buy Now](https://www.adafruit.com/product/4210) [Related Guides to the Product](https://learn.adafruit.com/products/4210/guides) ### Lithium Ion Cylindrical Battery - 3.7v 2200mAh [Lithium Ion Cylindrical Battery - 3.7v 2200mAh](https://www.adafruit.com/product/1781) Need a big battery for your project? This lithium-ion battery contains a 2200mAh and a protection circuit that provides over-voltage, under-voltage, and over-current protection. Yet, it is slim and easy to fit into many project cases. This cell can provide 2 **C** of... In Stock [Buy Now](https://www.adafruit.com/product/1781) [Related Guides to the Product](https://learn.adafruit.com/products/1781/guides) ### Breadboard-friendly SPDT Slide Switch [Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805) These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as... Out of Stock [Buy Now](https://www.adafruit.com/product/805) [Related Guides to the Product](https://learn.adafruit.com/products/805/guides) ### 1.25mm Pitch 2-pin Cable Matching Pair - 40cm long [1.25mm Pitch 2-pin Cable Matching Pair - 40cm long](https://www.adafruit.com/product/4720) When 0.1" is too big, and JST PH's too chunky, these ultra-slim 1.25mm connectors are a reliable alternative. These are only 1.25mm pitch, but have a nice clicky connection. These cables are nice and long, 40cm in fact. They've got both small form factor and are a... In Stock [Buy Now](https://www.adafruit.com/product/4720) [Related Guides to the Product](https://learn.adafruit.com/products/4720/guides) ## Related Guides - [Adafruit VL53L1X Time of Flight Distance Sensor](https://learn.adafruit.com/adafruit-vl53l1x.md) - [Adafruit RP2040 Prop-Maker Feather](https://learn.adafruit.com/adafruit-rp2040-prop-maker-feather.md) - [Audio Synthesis with CircuitPython synthio](https://learn.adafruit.com/audio-synthesis-with-circuitpython-synthio.md) - [Haunted Air Blaster](https://learn.adafruit.com/automated-air-blaster.md) - [Prop-Maker Feather Talking Adabot Clock](https://learn.adafruit.com/prop-maker-feather-talking-adabot-clock.md) - [Zelda Echoes Of Wisdom Tri Rod](https://learn.adafruit.com/zelda-tri-rod.md) - [PropMaker Jack O'Lantern](https://learn.adafruit.com/propmaker-jack-o-lantern.md) - [Ahsoka Lightsaber Prop-Maker RP2040 retrofit](https://learn.adafruit.com/lightsaber-retrofit.md) - [Lightsaber Prop-Maker RP2040](https://learn.adafruit.com/lightsaber-rp2040.md) - [Talking HAL 9000 with RP2040 Prop Maker Feather](https://learn.adafruit.com/hal-9000-rp2040-prop-maker.md) - [Soundbox RP2040](https://learn.adafruit.com/soundbox-rp2040.md) - [Color Sensing Music Player](https://learn.adafruit.com/color-sensing-music-player.md) - [Halo Energy Sword RP2040](https://learn.adafruit.com/halo-energy-sword-rp2040.md) - [Tiny TARDIS Pendant](https://learn.adafruit.com/tiny-tardis-pendant.md) - [Adafruit Metro M7 1011 with AirLift](https://learn.adafruit.com/adafruit-metro-m7-with-airlift.md)