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Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

Explain project
Write a project description
Find schematic issues
Create a test plan
Simulate a circuit
Prepare for Manufacturing
Component Selection Workflow
New Subsystem Wizard
Write I2C initialization code
Generate firmware skeleton
PROG
GND_USB
IO19
VBAT
IO23
+3V3
VBAT
VBAT
IO33
IO22/SCL
OK_PROG
CH340C_IO0
V_USB
IO26
VBAT
VRDIV
IO26
VRDIV
IO17
GND_USB
VSTOR
USB_D-
IO0
IO19
VBAT
IO23
VBAT
CH340C_TX
VRDIV
GND_USB
IO21/SDA
VBAT
IO5
IO34
ESP_RX
IO21/SDA
GND_USB
IO16
V_SOLAR
VBAT_OK
ESP_TX
+3V3
OK_HYST
VBAT
IO15
GND_USB
VSTOR
ESP_EN
IO32
OK_HYST
USB_D+
VBAT
V_SOLAR
IO34
ESP_RX
IO35
IO22/SCL
IO2
ESP_EN
IO15
IO27
IO18
VOC_SAMP
IO13
IO12
CH340C_RX
VBAT_UV
USB_D-
CH340C_EN
VRDIV
IO35
IO33
CH340C_EN
IO0
IO35
VBAT
IO13
+3V3
IO5
IO18
OK_PROG
V_USB
OT_PROG
IO22/SCL
+3V3
ESP_TX
ESP_EN
IO27
VOC_SAMP
IO16
IO34
VBAT
IO14
USB_D+
IO14
IO21/SDA
VBAT
V_SOLAR
IO0
CH340C_TX
GND_USB
IO25
IO22/SCL
IO4
OT_PROG
IO2
VBAT_OV
CH340C_RX
IO32
IO12
IO25
VBAT_OV
IO4
CH340C_IO0
GND_USB
IO17
ESP_EN
VBAT
VBAT_UV
IO21/SDA
VSTOR
R17
Resistance
10kΩ
SDA
R14
Resistance
4.42MΩ
SJ1
R5
Resistance
0 Ω
SJ3
R15
Resistance
100kΩ
SJ4
SJ5
R2
Resistance
5.6MΩ
R18
Resistance
10kΩ
R6
Resistance
5.9MΩ
SCL
R1
Resistance
4.42MΩ
R8
Resistance
5.6MΩ
R3
Resistance
10MΩ
SJ6
R11
Resistance
4.22MΩ
R4
Resistance
120C Ω
R7
Resistance
4.02MΩ
R12
Resistance
1.43MΩ
SJ2
R13
Resistance
100kΩ
R16
Resistance
100kΩ
R9
Resistance
4.42MΩ
U3
U4
U2
Manufacturer Part Number
ESP32-WROOM-32
D4
D1
D3
D2
C7
Capacitance
0.1uF
USER1
C8
Capacitance
0.1uF
C16
Capacitance
0.1uF
C11
Capacitance
0.1uF
C14
Capacitance
0.1uF
C3
Capacitance
0.01uF
C18
Capacitance
0.1uF
IO0
C9
Capacitance
0.1uF
C12
Capacitance
0.1uF
C5
Capacitance
4.7uF
C10
Capacitance
0.1uF
C15
Capacitance
10uF
C17
Capacitance
10uF
C19
Capacitance
10uF
C1
Capacitance
4.7uF
C6
Capacitance
4.7uF
C4
Capacitance
100uF
C2
Capacitance
0.1uF
RST
C13
Capacitance
0.1uF
USER2
IOs
U1
Manufacturer Part Number
BQ25504RGTT
L2
Inductance
22uH
SC3
QWIIC
BAT1
SC1
SC2
SC4
Q1
I2C
Q2
USB
H1
H2
H3
H4

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Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    Sunflower MH.svg

    Sunflower MH

    Pinout.svg

    Pinout
    Battery 10440 3D.step

    Battery 10440 3D.step

    Battery 10440 3D

    Sunflower Seeds.svg

    Sunflower SeedsDefault

    Sunflower 1.svg

    Sunflower 1
    Jumper-green.step

    Jumper-green.step

    Jumper-green3D Model

    Project Sunflower Seeds V1.1

    Project Sunflower Seeds V1.1 thumbnail
    Solar-powered autonomous development board that allows you to grow your project from a small seed to a big, beautiful flower. AAA(10440) LiFePO4 battery as energy storage. BQ25504 Ultra Low-Power Energy Harvester

    Properties

    Properties describe core aspects of the project.

    Pricing & Availability

    Distributor

    Qty 1

    Digi-Key

    $29.64–$39.84

    LCSC

    $7.00–$7.50

    Mouser

    $11.54–$14.12

    Controls