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Ghostbusters Wifi Scanner

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Kevin McAleer

@KevinMcAleer_398287

Scan wifi hotspots using this Movie prop (The arms move depending on signal strength!)

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Updated at source: Dec 19, 2023

Model information

Source: Printables
Category: Props
License: Creative Commons — Attribution

Details Files (7)Makes & comments (Makes: 0) (Comments: 0)Remixes (0)Collections (62)

OVERVIEW

Build a fun Ghostbusters PKE style Wi-Fi scanner using a Raspberry Pi Pico, a couple of electronics and some 3d printed parts. The scanner will scan and display a list of all the local Wi-Fi hotspots, and change the position of the arms depending on the signal strength.

BILL OF MATERIALS

You will also need the following electronics:

Item	Description	Qty	Price
Display Pack 2.0	Pimoroni Display Pack for Pico	1	£18.90
Pico W	Raspberry Pi PicoPico W	1	£6.30
DS-929MG Digital Servo	DS-959MG Servo	1	£9.60
Pico Proto	Pico Proto board	1	£2.10
4x M2 screws	2M 8mm screws	4	£1.00
4x 2M 12mm screws	4x 2M 12mm screws	4	£1.00
1x M2.5 screw and nut	M3 nut and bolt	1	£0.25
3 male Dupont cables	To connect the servo to the protoboard	1	£0.30
Galleon Battery	Pimoroni 400mAh LiPo Battery	1	£7.50
LiPo Amigo Pro	Amigo Pro LiPo battery charger	1	£8.40
JST-PH cable	To connect the Pico Proto board to the LiPo Amigo Pro	1	£0.50

3D DESIGN

The Scanner is made up of several components:

Back
Left Arm
Right Arm
Middle section
Back Layer
Handle
Top

CONSTRUCTION

Push the servo into the hole on the base
Place the LiPo Amigo pro, the Galleon battery onto the back, connecting up the battery to the LiPo Amigo Pro
There are mounting screws for the LiPo amigo Pro, though it can just float around in the compartment
Place the middle section on top of the base
Place the left arm and right arm on the underside of the Top section
Place the middle layer on top of the left arm and right arm
Push the servo cable through the hole in the top section and middle layer
Place the Pico W on to the top section with the pins facing up
Solder the wires onto the Pico Proto board as described above and push this onto the Pico W
Push the Display pack on top of the Pico Proto board
Connect the Servo to the 3 pin dupont cable
Connect the JST-PH power cable from the Pico Proto board to the device connector of the LiPo Amigo Pro

ELECTRONICS

Although this picture of the wiring looks a little complicated, its actually pretty straight forward:

The VCC and GND from the device connector the LiPo Amigo Pro connects to the VBus and GND of the Pico
The VCC and GND from the device connector the LiPo Amigo Pro connects to the Servos 5V and GND
The Pico GPIO Pin 0 connects to the Servo signal pin
The Display pack pushes on top of the Pico W with the Pico Proto board sandwiched inbetween
The Pico Proto board VCC and GND connect to the JST-PH connector
The JST-PH connector from the Pico Proto board connects to the LiPo Amigo Pro

MICROPYTHON CODE

The files you need to copy to the pico can be found here: https://github.com/kevinmcaleer/ghostbusters_wifi. The files you need to upload to the Pico W are: