Schematic for ESPRSSO32 Smart Scale [Example] 20a7: ESP32-C3...

Espresso Smart Scale Design Overview

flux

1:24

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Project

Below is an overview of the ESPRSSO32 Smart Scale project based on the information available in the project file:

Purpose and High-Level Concept

Objective:
The project is a smart scale designed for espresso applications. It measures espresso shot parameters (such as weight and extraction timing) and uses TinyML capabilities to help the user maintain or improve the quality of espresso shots.
Core Idea:
By integrating precise sensor measurements with local processing via a microcontroller, the scale provides real-time feedback to help prevent sour or over-extracted shots.

Core Components and Their Roles

Table

Component	Role / Function
ESP32-C3 (U1)	Acts as the main processing unit. It runs the TinyML model and handles sensor interfacing, user communications, and any wireless connectivity.
NAU7802SGI (U1)	A 24-bit ADC that is typically used for high-precision weight or load cell measurements, allowing for accurate conversion of the small differential signals from the sensor.
NCP176BMX330TCG (U2)	A low-dropout voltage regulator to ensure a stable power supply for sensitive analog and digital circuitry.
Decoupling and Filtering Components (Murata capacitors, Vishay resistors, etc.)	Ensure that power lines are stable and free of noise. Multiple capacitors are used for decoupling power supply pins, while resistors help with signal conditioning and biasing.
Connectors and Headers (PJ-102B, etc.)	Provide interfaces for power input (via a barrel jack), communication, and potentially external sensor or display connections.
Oscillator (RH100-40.000-18-F-2030-EXT-TR-NS1)	Supplies the precise clock signal required by the ESP32-C3 for accurate processing and timing.

Design, Implementation, and Functionality Breakdown

System Architecture and Signal Flow
- Sensor Interface:
  The load cell’s small differential output is conditioned and then digitized by the high-resolution ADC (NAU7802SGI).
- Data Processing:
  The ESP32-C3 gathers the digitized sensor data and, using embedded TinyML algorithms, processes the data in real time.
- Power Management:
  The NCP176BMX330TCG LDO regulator converts and stabilizes the incoming power, while decoupling networks (with capacitors like 1uF units) mitigate voltage transients.
- User and Connectivity Interface:
  Peripheral connectors and headers facilitate power input, possible display connections, and data communication with external devices (e.g., via WiFi or Bluetooth on the ESP32-C3).
Component Selection and Layout Considerations
- Passive Components:
  The design uses industry-standard SMD parts (e.g., Murata 1uF capacitors and Vishay resistors in 0402 or 0805 packages), ensuring low parasitic effects and minimal board footprint.
- Ground and Power Nets:
  Specialized net portals (e.g., PP3V3, PP5V0) maintain consistent voltage distribution and return paths, crucial for both analog precision and digital switching performance.
- Clock Stability:
  A dedicated crystal oscillator unit ensures the microcontroller functions with a stable clock, which is especially important when operating TinyML algorithms that require precise timing.
Trade-Offs and Design Choices
- Precision vs. Cost:
  High-resolution ADCs and precision passive components have been chosen to achieve accurate sensor readings, which may come at a higher cost but are necessary for reliable espresso shot measurements.
- Power Supply Complexity:
  Multiple decoupling and filtering elements have been used to ensure a clean power supply, especially in the presence of rapid digital switching from the ESP32-C3, which can introduce noise.
- Form Factor vs. Complexity:
  A compact SMD layout is preferred to offer a small footprint; however, this demands careful PCB routing and thermal management.
Potential Challenges and Performance Considerations
- Noise and Signal Integrity:
  Ensuring the analog front-end (load cell sensor and ADC) remains immune to digital noise poses a significant challenge. Carefully laid out decoupling networks and controlled impedance traces are critical.
- Processing Load:
  Running TinyML algorithms on the ESP32-C3 requires that firmware be carefully optimized for real-time performance without compromising battery life.
- Thermal Management:
  Even with low drop-out regulators, managing heat in a compact board can be challenging, especially under varying operating conditions.
- Calibration Drift:
  Over time, load cell readings can drift, necessitating either in-circuit calibration routines or periodic recalibration in the software.
Real-World Applications and Future Enhancements
- Applications:
  Beyond espresso shot quality assessment, a similar design could be adapted for other precision weight-measurement applications, such as food portioning, ingredient dispensing, or laboratory scales.
- Scalability:
  Future versions could integrate additional sensors (like temperature or humidity) to offer a more comprehensive evaluation of espresso extraction conditions.
- Connectivity and Data Analytics:
  Enhanced wireless connectivity could enable integration with mobile apps or cloud services for data logging, advanced analytics, or remote calibration.
- Firmware Optimization:
  As TinyML models evolve, the embedded algorithms can be updated to provide more nuanced feedback or predictive maintenance tips.
- Modular Design:
  A redesign might consider a more modular architecture that allows for easier updates or component swaps in response to improvements in sensor technology.

Summary

The ESPRSSO32 Smart Scale project represents an integrated design where a high-performance microcontroller, precision ADC, and carefully selected passive components work together to provide an accurate, responsive tool for espresso shot evaluation. The design prioritizes signal integrity, stable power management, and efficient processing, with trade-offs made between compactness and noise immunity. Future enhancements could further integrate connectivity, modular sensor platforms, and refined firmware for robust, scalable applications.

This detailed breakdown provides insight into the project's purpose, design decisions, core components, and areas for ongoing improvement.

321 days

jeffwilde

List all the passive components, focusing on decoupling capacitors required for U2, the LDO regulator, and add them to the project.

321 days

karrieamber792740

tell me more

282 days

flux

is thinking...

282d 1:7:02

The response is taking longer than expected. Please try again with a more focused question.

282 days

Ready.

Net3

Net2

Resistance

500 Ω

Net1

R10

Resistance

500 Ω

PowerNet2

PowerNet4

C14

Capacitance

PowerNet3

Reviews

Design Rule Checks

Overlapping Copper • 99

Des	Net	Des	Net
C23:P2	ADC_VBG	Trace a458	Net 16
C17:P1	GND	J6:SHIELD	Net 1
C18:P1	GND	Inland Red Tricorder:P1	Net 49
C23:P1	GND	Trace a458	Net 16
IC1:GND	GND	Trace a458	Net 49
Through-hole - 1	GND	Inland Red Tricorder:P2	Net 39
U1:DVSS	GND	Trace a458	Net 4
R2:P1	LOAD_CELL_A1_P	Trace a458	Net 16
U1:VIN1P	LOAD_CELL_A1_P	Trace a458	Net 16
U1:VIN1N	LOAD_CELL_AI_N	Trace a458	Net 16
Inland Red Tricorder:P2	Net 4	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P2	Net 4	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P2	Net 4	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P2	Net 4	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P2	Net 4	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P2	Net 4	Inland Red Tricorder:P1	Net 16
Trace a458	Net 4	J7:TMDS Clock Shield	Net 1
Trace a458	Net 4	J7:TMDS Clock+	Net 8
Trace a458	Net 4	J7:TMDS Clock+	Net 8
Trace a458	Net 4	J7:TMDS Clock+	Net 8
Trace a458	Net 4	Inland Red Tricorder:P1	Net 16
Trace a458	Net 4	Inland Red Tricorder:P1	Net 16
Trace a458	Net 4	Inland Red Tricorder:P2	Net 16
Trace a458	Net 4	J7:TMDS Data 0-	Net 18
Trace a458	Net 4	J7:TMDS Data 0+	Net 19
Trace a458	Net 4	J7:TMDS Data 0 Shield	Net 20
Trace a458	Net 4	J7:TMDS Data 1-	Net 21
Trace a458	Net 4	Trace a458	Net 49
Trace a458	Net 4	Inland Red Tricorder:P1	Net 60
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P2	Net 4
Inland Red Tricorder:P2	Net 11	Trace a458	Net 4
Inland Red Tricorder:P2	Net 11	Trace a458	Net 4
Inland Red Tricorder:P2	Net 11	Trace a458	Net 4
Inland Red Tricorder:P2	Net 11	Trace a458	Net 4
Inland Red Tricorder:P2	Net 11	Trace a458	Net 4
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P2	Net 11	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P1	Net 16
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P1	Net 16
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P1	Net 16
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P2	Net 16
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P1	Net 39
Inland Red Tricorder:P2	Net 11	Inland Red Tricorder:P1	Net 60
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P1	Net 16	Trace a458	Net 4
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P1	Net 16	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P1	Net 16	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P1	Net 16	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P1	Net 16	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P1	Net 16	Inland Red Tricorder:P1	Net 60
Inland Red Tricorder:P1	Net 16	Inland Red Tricorder:P1	Net 60
Inland Red Tricorder:P2	Net 16	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P2	Net 16	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P2	Net 16	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P2	Net 16	Inland Red Tricorder:P1	Net 60
Through-hole - 1	Net 21	J7:SHIELD	Net 1
Trace a458	Net 21	J7:SHIELD	Net 1
Trace a458	Net 21	J7:SHIELD	Net 1
Trace a458	Net 21	J7:SHIELD	Net 1
Trace a458	Net 21	Trace a458	Net 49
Trace a458	Net 21	Trace d933	PP12V0
Trace a458	Net 37	Trace a458	Net 49
Inland Red Tricorder:P1	Net 39	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P1	Net 39	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P1	Net 39	Inland Red Tricorder:P2	Net 4
Inland Red Tricorder:P1	Net 39	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P1	Net 39	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P1	Net 39	Inland Red Tricorder:P2	Net 11
Inland Red Tricorder:P1	Net 39	Inland Red Tricorder:P1	Net 16
Trace a458	Net 49	L2:2	PP3V3_L
Inland Red Tricorder:P1	Net 60	J7:TMDS Clock Shield	Net 1
Inland Red Tricorder:P1	Net 60	J7:TMDS Clock-	Net 3
Inland Red Tricorder:P1	Net 60	J7:TMDS Clock+	Net 8
Inland Red Tricorder:P1	Net 60	Inland Red Tricorder:P1	Net 16
C18:P2	PP3V3	Inland Red Tricorder:P1	Net 49
J1:VDD	PP3V3	Trace 9ddb	None
J1:VDD	PP3V3	Trace c8ae	None
C12:P2	PP3V3_L	Trace a458	Net 49
C17:P2	PP5V0	J6:SHIELD	Net 1
IC1:SPICS0	SPI_CS	Trace a458	Net 49
J1:CLX	SPI_SCK	Trace 9ddb	None
IC1:XTAL_32K_P	None	Trace a458	Net 49
Trace 8529	None	Trace a458	Net 4

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides • 6

	Designator	Ruleset
	Circle Shape	Override rule for Circle Shape
	Trace a458	Override rule for Trace
	＊	Override rule for ＊
	Silk Shapes	Override rule for Silk Shapes
	Silk Shapes	Override rule for Silk Shapes
	Silk Shapes	Override rule for Silk Shapes

Airwires • 89

	Designators	Net
	C23:P2, U1:VBG	ADC_VBG
	Through-hole - 1:Through-hole - 1, IC1:GND	GND
	C2:P2, IC1:CHIP_EN	GPIO_EN
	R3:P1, IC1:CHIP_EN	GPIO_EN
	J4:Pin_1, IC1:GPIO3	GPIO_SW1
	J4:Pin_2, IC1:GPIO8	GPIO_SW2
	IC1:MTCK, R5:P1	I2C_SCL
	J5:Pin_3, U1:SCLK	I2C_SCL
	R5:P1, U1:SCLK	I2C_SCL
	J5:Pin_2, U1:SDIO	I2C_SDA
	R1:P1, IC1:MTDI	I2C_SDA
	R1:P1, U1:SDIO	I2C_SDA
	IC1:GPIO2, U1:DRDY	INT_ADC_DRDY
	C20:P1, R2:P1	LOAD_CELL_A1_P
	C20:P1, U1:VIN1P	LOAD_CELL_A1_P
	J3:3, R2:P2	LOAD_CELL_A1_P_R
	C20:P2, R4:P1	LOAD_CELL_AI_N
	R4:P1, U1:VIN1N	LOAD_CELL_AI_N
	J3:2, R4:P2	LOAD_CELL_AI_N_R
	IC1:GPIO9, MCU_BOOT:TP	MCU_BOOT
	J6:SHIELD, J6:SHIELD	Net 1
	J6:SHIELD, J6:SHIELD	Net 1
	J6:SHIELD, J6:TMDS Clock Shield	Net 1
	J6:SHIELD, J6:TMDS Clock Shield	Net 1
	J6:SHIELD, J7:SHIELD	Net 1
	J7:SHIELD, J7:SHIELD	Net 1
	J7:SHIELD, J7:SHIELD	Net 1
	J7:SHIELD, J7:TMDS Clock Shield	Net 1
	J7:SHIELD, J7:TMDS Clock Shield	Net 1
	C10:P2, IC1:VDD_SPI	Net 2
	J6:TMDS Clock+, J7:TMDS Clock-	Net 3
	J6:+5V Power, J7:+5V Power	Net 5
	J6:TMDS Clock-, J7:TMDS Clock+	Net 8
	J6:CEC, J7:CEC	Net 9
	J6:DDC Clock, J7:DDC Clock	Net 10
	J6:DDC Data, J7:DDC Data	Net 11
	J6:Ground, J7:Ground	Net 12
	J6:Hot Plug Detect, J7:Hot Plug Detect	Net 13
	J6:No connection, J7:No connection	Net 14
	J6:TMDS Data 0-, J7:TMDS Data 0-	Net 18
	J6:TMDS Data 0+, J7:TMDS Data 0+	Net 19
	J6:TMDS Data 0 Shield, J7:TMDS Data 0 Shield	Net 20
	J6:TMDS Data 1-, J7:TMDS Data 1-	Net 21
	J6:TMDS Data 1+, J7:TMDS Data 1+	Net 22
	J6:TMDS Data 1 Shield, J7:TMDS Data 1 Shield	Net 23
	IC1:U0RXD, MCU_RXD:TP	Net 24
	IC1:U0TXD, MCU_TXD:TP	Net 25
	J6:TMDS Data 2-, J7:TMDS Data 2-	Net 26
	J6:TMDS Data 2+, J7:TMDS Data 2+	Net 27
	J6:TMDS Data 2 Shield, J7:TMDS Data 2 Shield	Net 29
	C5:P2, R5:P2	PP3V3
	C7:P2, C21:P2	PP3V3
	C7:P2, IC1:VDDA__1	PP3V3
	C13:P2, C22:P2	PP3V3
	C13:P2, IC1:VDD3P3_CPU	PP3V3
	C15:P2, J1:VDD	PP3V3
	C15:P2, U2:FB	PP3V3
	C18:P2, L2:1	PP3V3
	C22:P2, C24:P2	PP3V3
	IC1:VDD3P3_CPU, IC1:VDD3P3_RTC	PP3V3
	IC1:VDD3P3_RTC, C5:P2	PP3V3
	IC1:VDDA__1, L2:1	PP3V3
	IC1:VDDA, IC1:VDD3P3_RTC	PP3V3
	IC1:VDDA, IC1:VDDA__1	PP3V3
	R1:P2, C5:P2	PP3V3
	R3:P2, R1:P2	PP3V3
	U2:OUT, C24:P2	PP3V3
	U2:OUT, U2:FB	PP3V3
	C12:P2, L2:2	PP3V3_L
	IC1:VDD3P3__1, C12:P2	PP3V3_L
	C3:P2, C17:P2	PP5V0
	C3:P2, U1:AVDD/LDO	PP5V0
	C9:P2, C19:P2	PP5V0
	C9:P2, U2:IN	PP5V0
	C11:P2, C1:P2	PP5V0
	C17:P2, C1:P2	PP5V0
	J3:1, C11:P2	PP5V0
	J3:1, J5:Pin_1	PP5V0
	U1:AVDD/LDO, U1:DVDD	PP5V0
	U1:R-EFP, C11:P2	PP5V0
	U2:IN, U1:DVDD	PP5V0
	IC1:SPICS0, J1:CD/DAT3	SPI_CS
	IC1:SPIQ, J1:DAT0	SPI_MISO
	IC1:SPID, J1:DAT1	SPI_MOSI
	IC1:SPICLK, J1:CLX	SPI_SCK
	Y1:1, C4:P1	XTAL_N
	Y1:1, IC1:XTAL_N	XTAL_N
	Y1:3, C8:P2	XTAL_P
	Y1:3, IC1:XTAL_P	XTAL_P

Deprecated Rules

Reports nodes that are using rules that are not supported anymore.

Layers with Multiple Fills • 1

	Layer	Net
	All	GND, GND

Floating Copper • 123

	Name
	Trace 03a1, Trace 9082, Through-hole - 1, Trace 21c4, Trace cd4d, Trace 187f, Trace f2ed, Trace 9ddc, Trace c561, Trace 55b5, Trace 0cf1, Trace c790, Trace 0bfe, Trace cd87, Trace 566d, Trace 2b8f, Trace 982d, Trace f207
	Trace 051b, Trace 118c, Through-hole - 1, Trace c71f, Trace f598, Trace 54d9, Trace 2f72
	Trace 0698, Trace c2e8, Through-hole - 1, Trace 6346, Trace 425a, Trace 474e
	Trace 0736, Trace e955, Through-hole - 1, Trace a674, Trace 4e9d
	Trace 0791, Trace 5fa0, Trace 128c, Trace 8163
	Trace 08ae, Trace 2e60, Trace 3b81, Trace 20b4
	Trace 0981, Trace 0ffd, Through-hole - 1, Trace b505, Trace ce4b
	Trace 0a15, Trace ba56, Through-hole - 1, Trace 299d, Trace 5584, Trace 3ec2, Trace f913
	Trace 0a71, Through-hole - 1, Trace 3c63, Trace a5ed, Trace 1e39, Trace 18fe, Trace 17b4, Trace 9c51, Trace 875b, Trace 7989
	Trace 1733, Trace 8458, Through-hole - 1, Trace a904, Trace 9d0c, Trace d4ba, Trace 2aef, Trace be70, Trace 94e9, Trace 6003, Trace 43b5, Trace f9ef, Trace e366, Trace 8132
	Trace 1845, Trace 30dc, Trace 55ee, Through-hole - 1
	Trace 19d8, Trace 682f, Trace dbc2, Trace 5e8b
	Trace 1e6b, Through-hole - 1, Trace 6e4e, Trace 1f7b, Trace 79aa, Trace b84f, Trace 9e8d, Trace 7cc2, Trace f5ce
	Trace 2285, Through-hole - 1, Trace 87c8, Trace 3859, Trace 6679, Trace 9ab9, Trace e461, Trace 9062, Trace fc31, Trace 56ce, Trace 88b6
	Trace 26e6, Trace e7e9, Through-hole - 1, Trace e148, Trace f436, Trace e156, Trace 6c8a
	Trace 2a9f, Trace 51e3
	Trace 2bf4, Through-hole - 1, Trace 4f45, Trace 9dbe, Trace f482, Trace d71c
	Trace 2e5c
	Trace 3069
	Trace 31d1, Trace e171, Trace d2a0, Trace a9e6, Trace 615d
	Trace 31d2
	Trace 3d3d, Through-hole - 1, Trace f1c2, Trace fe6f, Trace a367, Trace fbd6, Trace 71e4
	Trace 45b7, Trace 8378, Through-hole - 1, Trace f569, Trace 7589, Trace 67f3
	Trace 5b87, Through-hole - 1, Trace 9914, Trace ffed, Trace f154
	Trace 6490, Trace a94c, Through-hole - 1, Trace be3d
	Trace 669c, Trace d362, Through-hole - 1, Trace e98e, Trace f8d4
	Trace 8353, Trace a8a0
	Trace 85b0, Trace 948f
	Trace 9943
	Trace aabe
	Trace c7de
	Trace d88c, Through-hole - 1, Trace eec4, Trace fd29
	Trace e088
	Through-hole - 1
	Trace 19a6, Trace af45, Trace aa8a, Trace ce0b
	Trace 20d7, Trace 6e9d, Trace dd14, Trace e884
	Trace 4a51, Trace d4db, Trace ef5c, Trace 8389
	Trace 59a5, Trace a9d0, Trace 3382, Trace 34e3
	Trace 771c, Trace 0c52, Trace 8674, Trace 3009
	Trace 8495, Trace 4c59, Trace a174, Trace 4919
	Trace 9b73, Through-hole - 1, Trace f22b, Trace 5487, Trace 0be7
	Trace b713, Trace 8b23, Trace c3e8, Trace f684
	Through-hole - 1
	Trace 358b, Trace a0b3, Trace 3630, Trace bbdc
	Trace 5af7, Trace 3383, Trace 331a, Trace a903
	Trace 798c, Trace 5308, Trace 1edb, Trace fb6a
	Trace 9dc3, Trace 9609, Trace 16bb, Trace ae32, Through-hole - 1
	Trace bb52, Trace c5a6, Trace d5da, Trace 4539
	Trace cc8b, Trace 37b2, Trace 25aa, Trace 3910
	Trace f3b6, Trace cc50, Trace 656d, Trace 544e
	Trace 19c8, Trace 13c7, Trace d196, Trace fd81
	Trace 2f7b, Trace e292, Trace 763b, Trace 4a1b
	Trace 504a, Trace ae34, Trace a2a7, Trace 9596
	Trace 535a, Trace 7152, Trace 3e1a, Trace a453
	Trace 7b4d, Trace 98aa, Trace e82b, Trace 087b, Trace d3fa, Trace cfc9, Trace 7259, Trace 3108
	Trace 9ef2, Through-hole - 1, Trace ad2e, Trace 175f, Trace b8b9
	Trace a14f, Trace 9bbc, Trace 7a96, Trace 075f
	Trace f64d, Trace aba7, Trace a607, Trace d645, Through-hole - 1, Trace 9238, Trace 8e52, Trace a212, Trace 06fd
	Trace 7156, Trace 8dc3, Trace a545, Trace e5f0
	Trace ad1a, Trace 9e3a, Trace 8f7d, Trace f3fd
	Trace b4ba, Trace f1ed, Trace 1ee5, Trace 2f5e
	Trace c8a8, Trace 5ee9, Trace b264, Trace 8391
	Trace e5e2, Trace 477a, Trace 955e, Through-hole - 1, Trace a8b4
	Trace eccd, Trace 9479, Trace addf, Trace fccd
	Trace f2ca, Trace dfd4, Trace 394d, Trace e22c
	Trace f516, Trace 48d1, Trace 2475, Trace 28cc
	Trace 6c1b, Trace 8529, Trace a458
	Trace 10e2, Trace df87
	Trace 156b, Through-hole - 1, Trace 82ff, Trace 2c2c, Trace c73e, Trace e4dd, Trace f1f8, Trace b9b9, Trace 2c41
	Trace 3b6e, Trace 7290
	Trace c762, Trace 3df1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Trace 0343, Trace a441
	Trace 63af, Trace a87c
	Trace 983b, Trace e524
	Through-hole - 1
	Through-hole - 1
	Trace 5fc9, Through-hole - 1, Trace 8622, Trace 07e4, Trace b789
	Trace 72b7, Trace 2994, Trace c4d4, Trace a7a2
	Trace 83fc, Trace 9d63, Trace c495, Trace e6bf
	Trace 912f, Trace f0a2, Trace 9ea7, Trace 20dc
	Trace 9dfa, Trace b1c2, Trace 1321, Trace 021c
	Trace a9e1, Trace c58e, Trace a92f, Trace 7f72
	Trace b2c4, Trace 979d, Trace b05f, Trace 691a
	Trace c131, Trace 8ab7, Trace 8998, Trace ede7
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Trace 0449, Trace 91b4, Trace bf5b, Trace d293, Trace b07e, Trace 8ebc, Trace 7484, Trace 23f5, Trace 36f0, Trace 85de, Trace 7a73, Trace 7a36, Trace 6520, Trace 30bb, Trace 5cbf, Trace 4e74, Trace 1f29, Trace 0a66, Trace 0486, Trace 97e1, Trace 7e24, Trace 27c1, Trace 98a5, Trace 9421, Trace 4f5b, Trace d933, Trace 0976, Trace ee9f
	Trace bca7
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Through-hole - 1
	Trace 082b, Trace bc29, Trace 830a, Trace 9308
	Trace 0c0b, Trace 5e3a, Trace a68a, Trace c3a2
	Trace 299f, Trace c400, Trace 1672, Trace 060d
	Trace 2faf, Trace 9e20, Trace 475e, Trace b1d8
	Trace 9c88, Trace 68c3, Trace 0352, Trace 839f
	Trace a154, Trace f3dc, Trace 0dd4, Trace 0415
	Trace fa24, Through-hole - 1, Trace de52, Trace e059, Trace ad7a
	Trace ff7c, Trace 8ddf, Trace 1824, Trace 6b30
	Trace 462a, Trace d1f9, Trace 26b5, Trace af49
	Trace 766f, Trace 26ea, Trace e801, Trace 728a
	Trace 9754, Trace 66f6, Trace b842, Trace e823
	Trace afcf, Trace b259, Trace bcc5, Trace 96bf
	Trace cb8f, Trace 3b57, Trace 3b1e, Trace 6547
	Trace ece4, Trace 474c, Trace 21b5, Trace e779
	Trace 008f, Trace 25cb, Trace 61c2, Trace 7cea
	Trace 2354, Trace 72c0, Trace 9d3c, Trace e138
	Trace 2897, Trace 457c, Trace c2c7, Trace b31c
	Trace 8320, Trace cc9d, Trace 7564, Trace fcad
	Trace 9410, Trace 6768, Trace a101, Trace e877
	Trace ab3d, Trace 912e, Trace ebca, Trace 3238
	Trace e74b, Trace b753, Trace 6a3b, Trace 849b
	Trace e7a4, Through-hole - 1, Trace 3b60, Trace 5d1b, Trace 8bfc

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Missing Footprints

Reports parts that have no footprint.

Manufacturing

Manufacturer Part Number • 5

	Designator	MPN
	C14	None
	J4	None
	J5	None
	R9	None
	R10	None

Parts Available

Beta

Checks that all parts have a part number and are available from distributors.

System Checks

Auto-Layout

Beta

Reports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.

Passive Components

Resistor Power Rating

Beta

Checks that the power traveling across a given resistor is under its rating with 50% headroom.

Learn more

Pull Up/Pull Down Presence

Beta

Checks that IC pins that require pull up or pull down resistors have them.

Learn more

Capacitor Voltage Rating

Beta

Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
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 #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
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 10,000uF 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 20pF 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 #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.0k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Inspect

ESPRSSO32 Smart Scale [Example] 20a7

Controls

Properties

Availability & Pricing

Distributor		Qty 1
	Arrow	$7.37–$9.83
	Digi-Key	$11.14–$18.49
	LCSC	$8.82–$9.78
	Mouser	$16.03
	Verical	$5.25–$11.22

Assets

ESPRESSO32 Smart Scale Board Outline.dxf

id=ESPRESSO32 Smart Scale Board Outline

ESPRESSO32 Smart Scale Antenna Cutout.dxf

id=ESPRESSO32 Smart Scale Antenna Cutout

Thumbnail

ESPRESSO32_Smart_Scale_Thumbnail.png

id=ESPRESSO32_Smart_Scale_Thumbnail

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