2 layers75.5 × 71 mm
2 layers77.1 × 84.7 mm
EConBadge
Oxmose/EConBadge3E-Ink Convention Badge | Connected badge to display your favorite images and texts at convention.
- Size
- 77.1 × 84.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 28
- Pads
- 109
- Tracks, vias
- 109, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Dec 2022
- Updated
- 1 Aug 2025
Overview
EConBadge is an open-source printed circuit board by Oxmose, from the Oxmose/EConBadge repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 77.1 × 84.7 mm with 19 parts on 28 nets, routed with 109 tracks and 0 vias.
It is built around the 74AHCT125D and ESP32-DEVKITC-VE. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Main components
2README
README.mdEConBadge
E-Ink Convention Badge | Connected badge to display your favorite images and texts at conventions.
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Button | eConBadge:Button | BackBtn, DownBtn, EnterBtn, UpBtn |
| 3 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | 10K LED_MOSFET, 330 LED_DATA_R, R1 220K |
| 1 | 10k | eConBadge:SDCardReader | SDCardReader |
| 1 | 74AHCT125 | 74AHCT125:DIP794W45P254L1930H508Q14 | 74AHCT125 |
| 1 | DC-DC Regulator | eConBadge:4005DCDC | 4005-DCDC |
| 1 | ESP32-DevKitC | PCM_Espressif:ESP32-DevKitC | ESP32 |
| 1 | LOGO | eConBadge:logo | G*** |
| 1 | PinHeader_1x02_P2.54mm_Vertical | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BATT- |
| 1 | PinHeader_1x03_P2.54mm_Vertical | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | LEDConnector |
| 1 | PinHeader_1x08_P2.54mm_Vertical | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | EInkConnector |
| 1 | R2 20K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 20K |
| 1 | SSD1306_0.96_OLED | eConBadge:SSD1306_0.96_OLED | OLED |
| 1 | SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | SwitchOnOff |
| 1 | TRANS_RFP30N06LE | RFP30N06LE:TRANS_RFP30N06LE | LED_EN_MOSFET |
Questions
How big is the EConBadge PCB?
It measures 77.1 × 84.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EConBadge use?
19 parts, built around the 74AHCT125D and ESP32-DEVKITC-VE. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the EConBadge KiCad files?
From the Oxmose/EConBadge repository on GitHub, at the commit this page was made from: the board is Electronics/Regular/eConBadge.kicad_pcb and its schematic Electronics/Regular/eConBadge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EConBadge design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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