MPPT addon board
About the MPPT addon board
MPPT addon board is an open source PCB design by pete4radio, published on GitHub. It is a 2-layer board measuring 90.2 × 95.9 mm, with 48 components from 13 distinct parts.
Other key parts include the LT8491-mezzanine. By type, the board carries 30 resistors, 9 transistors, 6 capacitors, 2 ICs and 1 connector.
It belongs with the power & battery designs in this gallery.
From the project
SAMWISE boards existing or newly ordered March 2025
Main components on the MPPT addon board
MPPT addon board bill of materials (BOM)
48 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | LT8491-mezzanine | LT8491-mezzanine | U1, U2 |
| 4 | BSS138DWQ-7 SOT65P210X110-6N | BSS138DWQ-7 | Q1, Q3, Q5, Q7 |
| 4 | MBT2222ADW1T1G MBT2222ADW1T1 | SOT-363_SC-70-6 | Q2, Q4, Q6, Q8 |
| 1 | MBT2222ADW1T1 | SOT-363_SC-70-6 | Q9 |
| 1 | HW-09-10-L-D-400-SM | SAMTEC_HW-09-XX-X-D-XXX-SM-A | J1 |
| 4 | 10nF | C_0603_1608Metric | C1, C2, C3, C4 |
| 2 | 0.1uF | C_0603_1608Metric | C5, C6 |
| 6 | 100k | R_0603_1608Metric | R1, R3, R8, R16, R17, R23 |
| 2 | DNI | R_0603_1608Metric | R2, R15 |
| 4 | 680 | R_0603_1608Metric | R4, R9, R18, R24 |
| 10 | 10k | R_0603_1608Metric | R5, R6, R10, R11, R20, R21, R26, R27 +2 |
| 4 | 200k | R_0603_1608Metric | R7, R12, R22, R28 |
| 4 | 0 | R_0603_1608Metric | R13, R14, R19, R25 |
MPPT addon board design files
The KiCad project lives in the pete4radio/SAMWISE-1-2-HW-Training repository on GitHub; these links point at the commit this page was built from.
MPPT addon board: common questions
How big is the MPPT addon board?
The MPPT addon board measures 90.2 × 95.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MPPT addon board?
48 components, from 13 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the MPPT addon board design files?
From the pete4radio/SAMWISE-1-2-HW-Training repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the MPPT addon board design in my own project?
The repository has no license, so all rights stay with pete4radio. Use it as a reference, and ask the author before reusing the design.
More boards in SAMWISE-1-2-HW-Training
RP2040/RP2350ADCS board
90.2 × 95.9 mm182 parts4LNo license0
RP2040/RP2350Mainboard
90.2 × 95.9 mm175 parts4LNo license0
RP2040/RP2350Motor Drivers
90.2 × 95.9 mm164 parts4LNo license0
LT8490 - Mezzanine
37.3 × 46 mm103 parts6LNo license0
Raspberry Pi Interface Board
56 × 65 mm38 parts4LNo license0
Battery Board
95.9 × 90.2 mm31 parts4LNo license0
Z+ Panel
97 × 97.3 mm28 parts4LNo license0
Raspberry Pi433MHz Ground Station Board
95.5 × 56 mm14 parts4LNo license0
Raspberry Pi SX1280 Adapter
30 × 65 mm11 parts4LNo license0
Groundstation 2400 Hat
65 × 56.5 mm10 parts4LNo license0
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