MACE Project — Wire Color Standards
| Wire Color | Description | Function 1 |
|---|---|---|
| Power Supply Voltage | ||
| Red | 12VDC (+) | Positive, Battery Power, 12V Sensors |
| Yellow | 5VDC (+) | 5V, VCC (5V), VIN |
| Blue | 3.3VDC (+) | 3V3, VCC (3.3V), 3.3, 3.3V OUT |
| Black | 0VDC (-) | Negative, GND, Common, Battery-Negative |
| Control Channels or Identification Wiring | ||
| Brown | First | S1 |
| Purple | Second | S2 |
| Gray | Third | S3, SPK- |
| Pink | Fourth | S4 |
| White | Fifth | S5, SPK+ |
| Black/Gold (bi-color sleeve) 2 | Sixth | S6 |
| Black/Pink (bi-color sleeve) 2 | Seventh | S7 |
| White/Silver (bi-color sleeve) 2 | Eight | S8 |
| Gold/Black (bi-color sleeve) 2 | Ninth | S9 |
| Communication | ||
| Orange | TX (Transmit Data) | |
| Green | RX (Receive Data) | |
Project-specific functions are provided to align with MACE Project schematics. However, users are free to redefine the functions and/or wire colors to suit their needs.
Use bi-color braided wire sleeves, colored heat shrink, phase marker pens, or phase tape to label and identify wires.
Avoid reusing solid colors Red, Black, Yellow, and Blue, as these are reserved for Power Supply Voltage. Additionally, try to avoid braided bi-color sleeves that include these colors.
Bi-color selections for Channel/Identification wiring 6-9 are recommendations, you are free to choose your own identification method. Whatever method you use, ensure it is consistent throughout the project to maintain clarity and avoid confusion
Download in color or black-and-white:
Legend
3.3VDC (+)
:
Typically used in ESP32 boards and ESP32 low-power devices.
5VDC (+)
:
Typically used in Arduino boards and Arduino related devices.
S(#)
:
S1, S2, S3, etc., where “S” stands for “Sound” (as in an audio file) and “#” represents a unique number.
SPK
:
Speaker.
VCC
:
Voltage Common Collector. Refers to the input voltage supplied to a device. Same as the power supply voltage.
VIN
:
Voltage In. Refers to the input voltage supplied to a device. Same as the power supply voltage.
