Big Red Button (codename Crying Eagle)

Push the button and The Star-Spangled Banner plays!

Button

Components

• Big Red Button - 10€
• Aluminum Box - 16€
• Lock Switch - 5.50€
• Orange LED - 0.25€
• Green LED - 0.40€
• ESP8266-05 with antenna - 2.70€
• Two resistors ~56ohm - 0.01€
• Battery pack - 1.50€
• Voltage regulator - 1.60€

Total: 37.96€

Code

Player

Components

• Speakers - 21€
• Wire (6m) - 1.5€
• Plastic Box - 4€
• ESP8266-01 - 1.57€
• Voltage regulator - 1.60€
• Player - 3.60€
• 1GB SD card (not manufactured anymore)

Total: 33.27€

Code

Other stuff

• Universal PCB
• Wires
• NodeMCU Development Board

Useful information

Links

• NodeMCU firmware for ESP8266
• Different ESP8266 modules
• New firmware on ESP8266-05

Pinouts

ESP8266-05 pinout

ESP8266-01 pinout