Chat
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
explain this project.
2y
This is an IoT reference design project making use of the ESP32-C3-WROOM-02 module, manufactured by Espressif Systems. The ESP32-C3-WROOM-02 is a powerful WiFi module encased with SoC with an integrated microcontroller, RAM, flash memory, and features like GPIO, SPI, I2C, and UART.
Several other notable components are included in the design as well:
-
A USB C connector (Designator: J1), likely for power supply as well as firmware/flashing the ESP module.
-
Two 10-pin connectors (Designators: J2, J3) which appear to bring out various I/O lines from the ESP32-C3-WROOM-02 and potentially for added functionality or modularity. The exact usage might depend on specific application requirements.
-
Two tactile switches (Designators: SW1, SW2) likely for user input or system control, possibly for controlling boot mode or reset function of the ESP module.
-
An RGB LED (Designator: LED1), likely used for status indication.
-
A voltage regulator (Designator: IC1). This is a TPS62130RGTR step-down converter from Texas Instruments, used to step down the input voltage to suit the working voltage of the ESP32-C3-WROOM-02.
-
There are several passive components like resistors (R1 through R10) and capacitors (C1 through C6). These could be for a variety of purposes – buffering power supply, setting voltage levels, noise filtering, etc.
-
There's also an inductor (Designator: L1) which is generally used in conjunction with the voltage regulator for smoothing out the output.
The schematic also includes several virtual components representing nets and power rails for providing power and signals to various parts of the circuit. The exact purpose and functionality of these components will depend on the nature of the overall design and the specific pin mapping of the ESP32-C3-WROOM-02. The design project is licensed under Creative Commons (CC BY 4.0).
2y
Someone is typing...
2
IO6
IO8
ESP_EN
IO1
ESP_BOOT
IO8
ESP_EN
IO7
USB_D+
IO10
IO1
IO2
USB_D-
U0RXD
ESP_BOOT
U0TXD
U0TXD
IO10
ESP_BOOT
IO6
3V3
IO0
IO5
IO4
USB_D+
IO7
IO6
IO5
IO0
ESP_EN
IO2
U0RXD
IO7
+5V
USB_D+
IO3
USB_D-
IO4
IO3
USB_D-
IO10
U1
3V3
3V3
+5V
3V3
+5V
3V3
+5V
3V3
J1
C1
Capacitance
3.3nF
C4
Capacitance
10uF
C3
Capacitance
22uF
C6
Capacitance
1uF
C2
Capacitance
10uF
C5
Capacitance
0.1uF
J3
SW1
SW2
J2
R8
Resistance
220 Ω
R1
Resistance
Resistance
R4
Resistance
Resistance
R5
Resistance
100KΩ
L1
Inductance
2.2uH
LED1
R6
Resistance
220 Ω
IC1
R7
Resistance
220 Ω
R2
Resistance
5.1KΩ
R10
Resistance
10KΩ
R9
Resistance
10KΩ
4
when programing with USB should ESP\_BOOT be pulled low via SW1?
@copilot when programing with USB should ESP_BOOT be pulled low via SW1?
1y
Yes, when programming the ESP32-C3-WROOM-02 via USB, the ESP_BOOT pin needs to be pulled low to put the ESP32 into bootloader mode. This is commonly done using a switch like SW1.
To achieve this, you can connect SW1 so that pressing it connects the ESP_BOOT signal to ground. Here’s how you can wire it:
Releasing the switch should disconnect the ESP_BOOT pin from ground, allowing the ESP32 to boot normally. This setup allows you to manually put the ESP32 into bootloader mode by holding the switch when powering up or resetting the device.
1y
Someone is typing...
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo15.8k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
ESP32-C3-WROOM-02 Reference Design
This is a ESP32-C3-WROOM-02 reference design based on the manufacturer's recommendations. On board we have an ESP module, USB C for firmware, 2 connectors with IOs and RGB LED
#ESP32 #WiFi #LED #IoT #BLE #ARM #referenceDesign #simple-embedded #espressif #template #reference-design
Properties
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $2.98–$4.16 |
LCSC | $3.90 |
Mouser | $4.27 |
Controls
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.
serkank
copilot