MexaBadge
About the MexaBadge PCB
MexaBadge is an open source ESP8266 PCB design by ElectronicCats, published on GitHub. It is a 2-layer board measuring 148.1 × 115.1 mm, with 47 components from 26 distinct parts.
Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the SPX1117 and MCP73831. By type, the board carries 15 resistors, 9 capacitors, 5 connectors, 5 LEDs, 4 switches and 4 diodes.
It belongs with the wearables designs in this gallery.
From the project
MexaBadge for DEFCON25
Main components on the MexaBadge
MexaBadge bill of materials (BOM)
47 components, 26 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SPX1117 | SOT-223 | U1 |
| 1 | MCP73831 | SOT-23-5 | U2 |
| 1 | ESP-12E | ESP-12E | U3 |
| 1 | Q_PNP_BCE | SOT-23_Handsoldering | Q1 |
| 1 | LiPo | Socket_Strip_Straight_1x02 | P2 |
| 2 | CONN_01X10 | Socket_Strip_Straight_1x10 | P3, P4 |
| 1 | USB Serial | Socket_Strip_Straight_1x06 | P5 |
| 1 | OLED_I2C | Socket_Strip_Straight_1x04 | P6 |
| 1 | Buzzer | BUZZER | BZ1 |
| 1 | SW_RESET | SW_B3U-1000P | SW1 |
| 1 | SW_BOOT | SW_B3U-1000P | SW2 |
| 2 | SW_PUSH | SW_B3U-1000P | SW3, SW4 |
| 5 | MADW__WS2812B | LED_WS2812B-PLCC4 | LED1, LED2, LED3, LED4, LED5 |
| 1 | LED | LED_0805 | D1 |
| 1 | MBR120 | SOD-123 | D2 |
| 2 | 1N4148 | SOD-323 | D3, D5 |
| 1 | 1.0uF | C_0805_HandSoldering | C1 |
| 1 | 4.7uF | C_0805_HandSoldering | C2 |
| 2 | 10uF | C_0805_HandSoldering | C3, C4 |
| 5 | 0.1uF | C_0805_HandSoldering | C5, C6, C7, C8, C9 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 7 | 10K | R_0805_HandSoldering | R1, R4, R9, R10, R11, R14, R15 |
| 3 | 1K | R_0805_HandSoldering | R2, R3, R7 |
| 1 | 220K | R_0805_HandSoldering | R5 |
| 1 | 100K | R_0805_HandSoldering | R6 |
| 1 | 2.2K | R_0805_HandSoldering | R8 |
| 2 | 3k3 | R_0805_HandSoldering | R12, R13 |
MexaBadge design files
The KiCad project lives in the ElectronicCats/MexaBadge repository on GitHub; these links point at the commit this page was built from.
MexaBadge: common questions
What microcontroller does the MexaBadge use?
The MexaBadge is built around the ESP-12E, from the ESP8266 family.
How big is the MexaBadge PCB?
The MexaBadge measures 148.1 × 115.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MexaBadge?
47 components, from 26 distinct parts. The full bill of materials is listed on this page.
Where can I download the MexaBadge design files?
From the ElectronicCats/MexaBadge repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MexaBadge design in my own project?
The repository has no license, so all rights stay with ElectronicCats. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MexaBadge without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
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