HardLabs

SunLeaf

HydroPWNics·SunLeaf·PCB V2.1/SunLeaf_V2.kicad_pcb

SunLeaf PCB layout, top view — open source STM32 board by HydroPWNics
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About the SunLeaf PCB

SunLeaf is an open source STM32 PCB design by HydroPWNics, published on GitHub. It is a 4-layer board measuring 77.5 × 40 mm, with 155 components from 45 distinct parts.

Its main chip is the STM32F446RET6_-_TQFP64, from the STM32 family. Other key parts include the ESP_09, BQ24210DQCT, AP2112K-3.3TRG1, 74HC4052D and PCA9518DBQR. By type, the board carries 43 resistors, 36 test points, 22 capacitors, 17 connectors, 14 diodes and 6 ICs.

It belongs with the sensors and iot & wireless designs in this gallery.

From the project

SunLeaf is a WiFi based remote sensor module, interfaces with I2C and UART sensors, pushes directly to the cloud.

Main components on the SunLeaf

ESP_09STM32F446RET6_-_TQFP64BQ24210DQCTAP2112K-3.3TRG174HC4052DPCA9518DBQR

SunLeaf bill of materials (BOM)

155 components, 45 distinct parts.

QtyPartRefs
1
ESP_09
IC1
1
STM32F446RET6_-_TQFP64
U1
1
BQ24210DQCT
U2
1
AP2112K-3.3TRG1
U3
1
74HC4052D
U4
1
PCA9518DBQR
U5
2
DMG2307L-7
Q1, Q2
1
ABM3B8.000MHZB2T
X1
1
ABS07-32.768KHZ-9-T
X2
1
20021121-00010C4LF
J1
1
0475890001-MicroUSBPort
J2
1
B2B-PH-K-S(LF)(SN)
J3
1
B3B-PH-K-S(LF)(SN)
J4
12
B4B-PH-K-S(LF)(SN)
J5, J6, J7, J8, J9, J10, J11, J12 +4
1
CONN_01X03
P2
1
ESDA6V1BC6
DA1
3
M2.5_Hole
H1, H2, H3
2
B3U-1000P
SW1, SW2
1
CUS-12TB
SW3
1
1909763-1
T1
Show 25 more
QtyPartRefs
36
TEST_POINT
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 +28
1
LTST-C193TBKT-5A
LED1
1
LTST-C191KGKT
LED2
1
LTST-C191KFKT
LED3
1
BAT20JFILM
D1
12
PESD3V3L2BT,215
D2, D3, D4, D5, D6, D7, D8, D9 +4
1
RSB39VTE-17
D14
1
BLM15HG601SN1D
FB1
1
MI0603K300R-10
FB2
14
CL05B104JP5NNNC
C1, C3, C4, C6, C7, C8, C9, C10 +6
2
CL05C090CB5NNNC
C2, C5
2
CL05C180GB5NCNC
C11, C12
1
CL05A475KQ5NRNC
C13
2
CL05A105KA5NQNC
C19, C20
1
CL10A106KQ8NNNC
C21
7
RC1005F103CS
R1, R3, R14, R15, R16, R40, R42
10
RC1005F102CS
R2, R6, R8, R10, R11, R18, R23, R26 +2
2
CPF0402B22RE1
R4, R5
1
RC1005J473CS
R7
7
RC1005F201CS
R9, R12, R13, R17, R19, R20, R21
1
RC1005F4870CS
R22
2
RC1608J202CS
R24, R25
10
RC1005F472CS
R27, R28, R29, R30, R31, R32, R33, R34 +2
2
ERA-3AEB3741V
R37, R38
1
RC5025J000CS
R43

SunLeaf design files

The KiCad project lives in the HydroPWNics/SunLeaf repository on GitHub; these links point at the commit this page was built from.

SunLeaf: common questions

What microcontroller does the SunLeaf use?

The SunLeaf is built around the STM32F446RET6_-_TQFP64, from the STM32 family.

How big is the SunLeaf PCB?

The SunLeaf measures 77.5 × 40 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the SunLeaf?

155 components, from 45 distinct parts. The full bill of materials is listed on this page.

Where can I download the SunLeaf design files?

From the HydroPWNics/SunLeaf repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the SunLeaf design in my own project?

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

Can I test firmware for the SunLeaf without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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