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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
Module1
C1
Capacitance
0.1uF
IC2
C4
Capacitance
0.1uF
C9
Capacitance
0.1uF
C12
Capacitance
10uF
C2C
Capacitance
22uF
Voltage
10 V
C1A
Capacitance
10uF
Voltage
10 V
C1B
Capacitance
10uF
Voltage
10 V
C2A
Capacitance
22uF
Voltage
10 V
C2
Capacitance
10uF
C2D
Capacitance
22uF
Voltage
10 V
C11
Capacitance
22uF
Voltage
10 V
C2B
Capacitance
22uF
Voltage
10 V
C14
Capacitance
0.1uF
C10
Capacitance
10uF
C3
Capacitance
10uF
I2S_DIN
+3.3V_BUCK_BOOST_PG
LED_CC_2.5A_PG
VBATT_MON_10/43
I2S_BCLK
VINA
I2C_SDA
I2S_BCLK
SPK_N
LED_CC_2.5A_EN
I2S_BCLK
+3.3V_BUCK_BOOST_PG
SPK_N
VINA
I2C_SCL
+3.3V_BUCK_BOOST_PG
VBATT_MON_10/43
IC1_FB
LED_CC_2.5A_EN
I2S_LRCLK
LED_CC_2.5A_PG
I2S_DIN
I2S_LRCLK
I2S_LRCLK
5V_MON_50/33
SPK_N
5V_MON_50/33
I2C_SDA
I2C_SCL
SW_DIGITAL
I2S_DIN
SPK_P
VBATT_MON_10/43
SPK_P
SW_DIGITAL
IC1_FB
I2C_SCL
5V_MON_50/33
SPK_P
I2C_SDA
+3.3V
+3.3V
LED_CC_2.5A
VBATT_5V_SW
R15
Resistance
10kฮฉ
+3.3V
R7
Resistance
4.7kฮฉ
+5V
R13
Resistance
5.6kฮฉ
GND
R1
Resistance
8mฮฉ
Power
1 W
VBATT
+3.3V
VBATT_5V_SW
VBATT_5V_SW
+3V3
R9
Resistance
1kฮฉ
R6
Resistance
4.7kฮฉ
R2
Resistance
15.8kฮฉ
VBATT
R12
Resistance
10kฮฉ
+3.3V
VBATT_5V_SW
R14
Resistance
10kฮฉ
VBATT_5V_SW
R10
Resistance
1.2kฮฉ
VBATT
+5V
R8
Resistance
1kฮฉ
R4
Resistance
10kฮฉ
VBATT_5V_SW
VBATT_5V_SW
+3.3V
R3
Resistance
10kฮฉ
+3.3V
LED_CC_2.5A
LED_CC_2.5A
R5
Resistance
634kฮฉ
+3.3V
+5V
R11
Resistance
33kฮฉ
VBATT
LED1
Mounting Holes
Line 1
M2.5
Line 3
Line 3
Microcontroller
Line 1
XIAO ESP32-C3
J2
U2
H4
LED2
Constant Current Source
Line 1
Buck Converter with Current Amplifier in Feedback Path
J1
H3
Display Breakout
Line 1
SSD1306 I2C Display
Input Power Stage
Line 1
Battery and Load Switch
Line 2
3.3V Buck Boost
Line 3
Line 3
H1
Audio Stage
Line 1
I2S Class D Amp and Cheap Speaker
H2
Battery Stage
Line 1
1S Li-Ion Charger
Line 2
Resistor Divider for Voltage Measurement
Line 3
Line 3
Test Interface
Line 1
Increase Layer count to 4 Layer and route these signals on internal layers
U4
U3
SPK1
L1
Inductance
1uH
ISAT
7 A
IC1
BT1

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Documents

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

    Assets

    Mark Wu.svg

    Mark Wu.svg

    Mark WuDefault
    FluxLogoTransparent.svg

    FluxLogoTransparent.svg

    FluxLogoTransparent

    Lethal Company Pro Flashlight Power Board V1 no display

    Lethal Company Pro Flashlight
    Find the acompanying button board here
    TODO: ADD A BUTTON!!
    -Ultra bright -Makes click noise from speaker -Wirelessly transmits battery life (maybe use Ubo to receive this) -Drive a SST-40 Chinese LED
    I want this thing to be super bright! The brighter the better, but keep it simple.
    These LEDs will draw a lot of power, so we need some sort of CC source. It doesn't have to have high bandwidth.
    I am thinking about a DIY microcontroller buck converter with PID duty cycle control.

    Properties

    creativecommons.org/licenses/by/4.0/

    Pricing & Availability

    Distributor

    Qty 1

    Digi-Key

    $8.41โ€“$10.51

    LCSC

    $4.04

    Mouser

    $12.28

    Controls