Uploaded November 2024 | Updated September 2026, 1 week ago
This tutorial explains how to build an electronic "lie detector" game, which can be used in a murder mystery, detective whodunnit, or escape room. Players hear a series of audio clips, which represent the responses a suspect gives when questioned by a detective. They must decide which of these statements are true, and which can be proved to be false based on contradictory evidence - such as other witness testimony, receipts, CCTV footage, mobile phone statements, etc. (If you've ever played the "Phoenix Wright: Ace Attorney" series of games, you'll be familiar with the mechanic!)
This game uses an ESP32, a DY-SV5W MP3 audio player, some arcade buttons, a motor driver and a couple of cheap hobby motors. I'll demonstrate the wiring and all the code used, and it can be built easily for under $20.
Timings
00:00:00 - 00:02:06 Introduction and Demonstration
00:02:07 - 00:03:06 Hardware Overview
00:03:07 - 00:06:33 Wiring Diagram
00:06:34 - 00:26:45 ESP32 Code
00:26:46 - 00:28:21 Wrapup
You can download the code and other resources used in this project or any of the other #escaperoom projects featured on this channel via my Patreon at patreon.com/playfultech
You can also join the community of people making playful technology projects, and receive Patreon support for any coding or hardware questions on the Discord server: discord.gg/TD2j5hxQU4
This tutorial explains how to build an electronic "lie detector" game, which can be used in a murder mystery, detective whodunnit, or escape room. Players hear a series of audio clips, which represent the responses a suspect gives when questioned by a detective. They must decide which of these statements are true, and which can be proved to be false based on contradictory evidence - such as other witness testimony, receipts, CCTV footage, mobile phone statements, etc. (If you've ever played the "Phoenix Wright: Ace Attorney" series of games, you'll be familiar with the mechanic!)
This game uses an ESP32, a DY-SV5W MP3 audio player, some arcade buttons, a motor driver and a couple of cheap hobby motors. I'll demonstrate the wiring and all the code used, and it can be built easily for under $20.
Timings
00:00:00 - 00:02:06 Introduction and Demonstration
00:02:07 - 00:03:06 Hardware Overview
00:03:07 - 00:06:33 Wiring Diagram
00:06:34 - 00:26:45 ESP32 Code
00:26:46 - 00:28:21 Wrapup
You can download the code and other resources used in this project or any of the other #escaperoom projects featured on this channel via my Patreon at patreon.com/playfultech
You can also join the community of people making playful technology projects, and receive Patreon support for any coding or hardware questions on the Discord server: discord.gg/TD2j5hxQU4
