2 layers
MP Tracker
elektra42/freifunk-open-mppt
Open hard- and software solar maximum power point tracker
70 parts89
4 layers227 × 83.5 mm
ASP
eneller/ASP- Size
- 227 × 83.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 20
- Pads
- 91
- Tracks, vias
- 0, 0
- Pours
- 1
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 2 Jun 2026
- Updated
- 2 Jun 2026
Overview
ASP is an open-source printed circuit board by eneller, from the eneller/ASP repository on GitHub. It is a 4-layer board of 227 × 83.5 mm with 32 parts on 20 nets.
It is built around the TL081. Its parts include 12 resistors, 9 capacitors, 3 ICs, 2 connectors and 1 switch.
Main components
1Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1n | Capacitor_SMD:CP_Elec_3x5.3 | C1, C3, C4, C5, C7, C8 |
| 6 | 8841 | Resistor_SMD:R_0603_1608Metric | R1, R2, R5, R6, R9, R10 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R4, R8, R12 |
| 3 | 2n | Capacitor_SMD:CP_Elec_3x5.3 | C2, C6, C9 |
| 3 | TL081 | Package_DIP:DIP-8_W7.62mm | U1, U2, U3 |
| 2 | Conn_Coaxial | Connector_Coaxial:BNC_Amphenol_031-5539_Vertical | J1, J2 |
| 1 | 14824 | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 5857 | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 681 | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | Fuse | Fuse:FuseHolder_Blade_ATO_Littelfuse_FLR_178.6165 | F1 |
| 1 | SW_DPST_x2 | Button_Switch_THT:Push_E-Switch_KS01Q01 | SW1 |
The 28 most common of 32 parts.
Questions
How big is the ASP PCB?
It measures 227 × 83.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ASP use?
32 parts, built around the TL081. 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 ASP KiCad files?
From the eneller/ASP repository on GitHub, at the commit this page was made from: the board is ASP.kicad_pcb and its schematic ASP.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ASP design in my own project?
Its repository states no licence, so its author keeps all rights: ask eneller before reusing the design.
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