HardLabs

Solar

DinosaurPotato534·Project-Albatross·pcb/solar-board/solar.kicad_pcb

Solar PCB layout, top view — open source ESP32 board by DinosaurPotato534
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About the Solar PCB

Solar is an open source ESP32 PCB design by DinosaurPotato534, published on GitHub. It is a 2-layer board measuring 149.6 × 65 mm, with 201 components from 62 distinct parts.

Its main chip is the ESP32-C3-MINI-1-N4, from the ESP32 family. Other key parts include the LM5175RHFR, INA228AIDGSR, BQ7692000PWR, TLV9061IDCKR and TPS54202DDCR. By type, the board carries 86 capacitors, 69 resistors, 13 ICs, 12 transistors, 9 connectors and 4 diodes.

It belongs with the power & battery and sensors designs in this gallery.

From the project

birb

The goal for the project was to create an autonomous plane capable of flying for hours off of solar power. Another big aspect is the ability to takeoff from water using a pontoon system mounted to a 4-bar linkage. The plane is going to be made from foam board and 3d prints. The wingspan is 90in and the length is roughly 6ft.

https://cad.onshape.com/documents/cb4d8119196719dc9005cd1f/w/a50220c0795171ae93763f3d/e/ee41d6fe8c21d3f854f1676d?renderMode=0&uiState=6aa1fe8d3db98abb8ad60905

Solar, from the project README
From the project README

Main components on the Solar

LM5175RHFRINA228AIDGSRBQ7692000PWRTLV9061IDCKRTPS54202DDCRTPS54302DDCRAP2112K-3.3TRG1ESP32-C3-MINI-1-N4MCP4728A0T-E_UN

Solar bill of materials (BOM)

201 components, 62 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
LM5175RHFR
U1, U2
3
INA228AIDGSR
U3, U4, U5
1
BQ7692000PWR
U6
2
TLV9061IDCKR
U7, U8
1
TPS54202DDCR
U9
1
TPS54302DDCR
U10
1
AP2112K-3.3TRG1
U11
1
ESP32-C3-MINI-1-N4
U12
1
MCP4728A0T-E_UN
U13
8
SIR626DP
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
4
Q_NMOS_GSD
Q9, Q10, Q11, Q12
1
XT30_panelA
J1
1
XT30_panelB
J2
1
XT60_battery
J3
1
XT60_ESCout
J4
1
JST-XH_balance
J5
1
JST-GH_toFC
J6
1
JST-GH_I2C
J7
1
USB_C_Receptacle_USB2.0_16P
J8
1
JST-PH_servo
J9
Show 42 more
QtyPartRefs
2
10A
F1, F2
1
tact
SW1
1
green
LED1
2
SMBJ45A
D1, D4
2
BAT54
D2, D3
2
10uH SRP1245A-100M
L1, L2
1
10uH SRP7028A-100M
L3
1
6.8uH SRP1245A-6R8M
L4
36
100n
C1, C2, C4, C10, C16, C21, C23, C24 +28
3
10u
C3, C33, C86
5
1u
C5, C28, C35, C58, C68
21
22u
C6, C7, C8, C9, C12, C13, C14, C15 +13
4
100u_poly
C11, C17, C41, C47
2
22p
C18, C48
2
4.7n
C19, C49
2
100p
C20, C50
2
390p
C22, C52
2
22n
C26, C56
4
10u
C70, C71, C77, C78
3
1u
C85, C88, C93
8
2.2
R1, R2, R3, R4, R25, R26, R27, R28
23
10k
R5, R6, R7, R8, R12, R14, R16, R20 +15
2
10m
R9, R33
2
5m
R10, R34
2
22.1k
R11, R35
2
130k
R13, R37
2
33k
R15, R39
2
84.5k
R17, R41
2
93.1k
R18, R42
2
120k
R19, R43
2
1M
R21, R45
2
4.7k
R22, R46
1
1m
R49
7
100
R50, R51, R52, R53, R54, R55, R56
1
10k_NTC
R58
1
100k
R59
1
75k
R64
1
90.9k
R68
1
1k
R72
2
2.2k
R73, R74
2
5.1k
R75, R76
1
0R
R99

Solar design files

The KiCad project lives in the DinosaurPotato534/Project-Albatross repository on GitHub; these links point at the commit this page was built from.

Solar: common questions

What microcontroller does the Solar use?

The Solar is built around the ESP32-C3-MINI-1-N4, from the ESP32 family.

How big is the Solar PCB?

The Solar measures 149.6 × 65 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Solar?

201 components, from 62 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 Solar design files?

From the DinosaurPotato534/Project-Albatross 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 Solar design in my own project?

The repository has no license, so all rights stay with DinosaurPotato534. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Solar without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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