2 layers74 × 50 mm
2 layers74 × 50 mm
GasWeighter ESP32
Pfersil13/GasWeighter- Size
- 74 × 50 mm
- Copper layers
- 2
- Thickness
- 1.58 mm
- Parts
- 85
- Nets
- 95
- Pads
- 323
- Tracks, vias
- 472, 68
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Nov 2023
- Updated
- 22 Sep 2024
Overview
GasWeighter ESP32 is an open-source printed circuit board by Pfersil13, from the Pfersil13/GasWeighter repository on GitHub. It is a 2-layer board of 74 × 50 mm with 85 parts on 95 nets, routed with 472 tracks and 68 vias.
It is built around the CH340C, ESP32-S3-WROOM-1-N8 and DS18B20, with the HX711, BQ24074RGTR and SHT31-DIS-F among its other parts. Its parts include 23 resistors, 20 capacitors, 11 connectors, 7 ICs and 5 transistors. It belongs with the ESP32 boards of this library.
Main components
9
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
DS18B20
TO-92-55℃~+125℃ 12bit 3V~5.5V 750ms Single-bus ±0.4℃ TO-92 Temperature Sensors ROHSUMWTemperature SensorsHX711
SOP-16-40℃~+85℃ 1.4mA 10Hz、80Hz 1MHz~20MHz、11.0592MHz 2 2.6V~5.5V 20mV、40mV、80mV 24 Built-in External、Built-in SPI Support Yes SOP-16 Analog to Digital Converters (ADC) ROHSAvia SemiconAnalog To Digital Converters (ADC)
BQ24074RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 4.2V 4.35V~10.2V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
SHT31-DIS-F
DFN-8DFN-8 New Arrivals ROHSSensirionUncategorised
SK34A
SMA(DO-214AC)Schottky DiodesFUXINSEMI
S8050
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 120 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)S8550
SOT-23-55℃~+150℃ 1 PNP 100nA 120 150MHz 25V 300mW 500mA 5V 600mV PNP SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
Parts
85| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R5, R7, R8, R9, R13, R14, R17, R21, R22, R24 |
| 6 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C3, C6, C14, C15, C17 |
| 5 | 10uF | Capacitor_SMD:C_0805_2012Metric | C5, C9, C10, C13, C16 |
| 5 | 330 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R11, R12, R25, R26 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_ISO7380 | H1, H2, H3, H4 |
| 3 | 4.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R10, R18 |
| 3 | SK34A | Diode_SMD:D_0805_2012Metric | D2, D3, D4 |
| 2 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C2, C18 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C11 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R20, R23 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C19, C20 |
| 2 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8, C12 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q4, Q5 |
| 2 | LOGO | LOGO | G***, G*** |
| 2 | S8050 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | SW_Push | Library:Button | SW1, SW2 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 3.7V Battery | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J1 |
| 1 | 4Wire | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J10 |
| 1 | AA | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J3 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U6 |
| 1 | BattSelec | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP2 |
| 1 | Battery_Out | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP7 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 1 | DS18B20 | Package_TO_SOT_THT:TO-92_Inline | U2 |
| 1 | EN1 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP3 |
| 1 | EN2 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP4 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U3 |
| 1 | External Programming | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J11 |
| 1 | FerriteBead | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | HX711 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U7 |
| 1 | LL | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J8 |
| 1 | LR | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J9 |
| 1 | NCP115AMX120TCG | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U5 |
| 1 | NTC | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J12 |
| 1 | NTC Jumper | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP8 |
| 1 | Override Charger | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP6 |
| 1 | Override Diode | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP5 |
| 1 | S8550 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | SHT31-DIS | Sensor_Humidity:Sensirion_DFN-8-1EP_2.5x2.5mm_P0.5mm_EP1.1x1.7mm | U4 |
| 1 | Solar Panel | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 1 | UL | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J6 |
| 1 | UR | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J7 |
| 1 | USB_C_Plug_USB2.0 | Library:USB C Molex_1 | P1 |
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Questions
How big is the GasWeighter ESP32 PCB?
It measures 74 × 50 mm and has 2 copper layers, 1.58 mm thick.
What parts does the GasWeighter ESP32 use?
85 parts, built around the CH340C, ESP32-S3-WROOM-1-N8, DS18B20 and HX711. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the GasWeighter ESP32 KiCad files?
From the Pfersil13/GasWeighter repository on GitHub, at the commit this page was made from: the board is Hardware_ESP32/GasWeighter ESP32.kicad_pcb and its schematic Hardware_ESP32/GasWeighter ESP32.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the GasWeighter ESP32 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Pfersil13 before reusing the design.