EllaFi
About the EllaFi PCB
EllaFi is an open source PCB design by paulkilroy, published on GitHub. It is a 2-layer board measuring 43.8 × 97.3 mm, with 26 components from 23 distinct parts.
Other key parts include the FOD817S and MPM3620AGQV-Z. By type, the board carries 9 resistors, 5 connectors, 5 diodes, 2 ICs, 2 capacitors and 1 transistor.
It belongs with the iot & wireless designs in this gallery.
From the project
Coin-operated WiFi hotspot portal for ESP32, built for TP-Link Omada controller networks. Clients insert physical coins to purchase internet access — the ESP32 handles coin counting, session management, pause/resume, and communicates with the Omada controller to grant and revoke
Coin-operated WiFi hotspot portal for ESP32, built for TP-Link Omada controller networks. Clients insert physical coins to purchase internet access — the ESP32 handles coin counting, session management, pause/resume, and communicates with the Omada controller to grant and revoke access.
→ Open the EllaFi Provisioner — browser-based tool (Chrome/Edge) to flash firmware and configure a new node over USB. No Python or esptool install required.
Main components on the EllaFi
EllaFi bill of materials (BOM)
26 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FOD817S | SOP-4_3.8x4.1mm_P2.54mm | U1 |
| 1 | MPM3620AGQV-Z | QFN-20_L5.0-W3.0-TL-MPM3630GQV-Z | U3 |
| 1 | AOD4184A | TO-252-2 | Q1 |
| 1 | PPPC041LFBN-RC Conn_01x04_Socket | PinSocket_1x04_P2.54mm_Vertical | J1 |
| 1 | WJ500V-5.08-3P Conn_01x03 | TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J2 |
| 1 | PJ-002AH | BarrelJack_Horizontal | J3 |
| 2 | PPPC221LFBN-RC Conn_01x22_Socket | PinSocket_1x22_P2.54mm_Vertical | J4, J5 |
| 1 | MINISMDC150F/16-2 | Fuse_1812_4532Metric | F1 |
| 1 | OS102011MS2QN1 | SW_Slide_SPDT_Straight_CK_OS102011MS2Q | SW1 |
| 1 | P6SMB6.8A | D_SMB | D1 |
| 1 | AP3216SURCK LED-RED | LED_1206_3216Metric | D3 |
| 1 | AP3216SYCK LED-YELLOW | LED_1206_3216Metric | D4 |
| 1 | AP3216SGCK LED-GREEN | LED_1206_3216Metric | D5 |
| 1 | 1.5SMC18A | D_SMC | D6 |
| 1 | CL21A106KACLRNC 10 µF | C_0805_2012Metric | C1 |
| 1 | CL21A226KOQNNNG 22 µF | C_0805_2012Metric | C2 |
| 1 | RC0805FR-072K2L 2.2k | R_0805_2012Metric | R1 |
| 2 | RC0805FR-07220RL 220 | R_0805_2012Metric | R2, R4 |
| 1 | RC0805FR-07330RL 330 | R_0805_2012Metric | R3 |
| 1 | RC0805FR-071KL 1k | R_0805_2012Metric | R5 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RC0805FR-0710KL 10k | R_0805_2012Metric | R6 |
| 2 | RC0402FR-07100KL 100 kΩ | R_0402_1005Metric | R7, R9 |
| 1 | RC0402FR-0719K1L 19.1 kΩ | R_0402_1005Metric | R8 |
EllaFi design files
The KiCad project lives in the paulkilroy/EllaFi repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/EllaFi-PCB.kicad_pcb
- Schematickicad/EllaFi-PCB.kicad_sch
EllaFi: common questions
How big is the EllaFi PCB?
The EllaFi measures 43.8 × 97.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the EllaFi?
26 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the EllaFi design files?
From the paulkilroy/EllaFi repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EllaFi design in my own project?
The repository has no license, so all rights stay with paulkilroy. Use it as a reference, and ask the author before reusing the design.
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