4 layers83 × 109 mm
2 layers72 × 65 mm
Esp32LoraBoard
vrees/wasserstand-harry-bADC Volt 3.781 6.00 2.951 5.00 2.319 4.00 1.706 3.00 1.081 2.00
- Size
- 72 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 58
- Pads
- 204
- Tracks, vias
- 530, 99
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 21 Nov 2020
- Updated
- 29 Nov 2024
Overview
Esp32LoraBoard is an open-source printed circuit board by vrees, from the vrees/wasserstand-harry-b repository on GitHub. It is a 2-layer board of 72 × 65 mm with 59 parts on 58 nets, routed with 530 tracks and 99 vias.
It is built around the ESP32-WROOM-32, LM3940IMP-3.3 and RFM95W-868S2, with the UMH3N among its other parts. Its parts include 15 resistors, 10 capacitors, 9 connectors, 6 transistors and 3 ICs. It belongs with the ESP32 boards of this library.
Main components
4
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
LM3940IMP-3.3
SOT-223-40℃~+125℃@(Tj) 1 10mA 1A 250uVrms 3.3V 5.5V 500mV@(1A) Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
RFM95W-868S2
16-SMD16-SMD New Arrivals ROHSHopeRF Micro-electronicsUncategorised
UMH3N
SOT-363-55℃~+150℃ 0.5uA 100 100mA 150mW 2 NPN (Pre-Biased) 250MHz 300mV 50V 5V 6.11kΩ NPN SOT-363 Digital Transistors ROHSJiangsu Changjing Electronics Technology (CJ)Digital Transistors
README
README.mdWasserstands-Sensor Harrald Brender
Urls/Links:
-
Ubidots: https://industrial.ubidots.com/accounts/signup_industrial/
- Username: HarryBrender
- Passwort: siehe Email
- Email: harald.brender@gmx.de
- harryb.iot.ubidots.com
Features:
Power on and idle
4,2 Volt Polynom
http://www.jaik.de/js/Interpolation.htm
ADC Volt 3.781 6.00 2.951 5.00 2.319 4.00 1.706 3.00 1.081 2.00
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1, R2, R3, R4, R9, R10, R11, R13, R14, R15 |
| 4 | 100n | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C4, C7, C8 |
| 4 | Fiducial | Fiducial:Fiducial_0.75mm_Mask1.5mm | FID1, FID2, FID3, FID4 |
| 3 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R7, R8, R12 |
| 3 | 1u | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C3, C9, C10 |
| 3 | Si2302DS_NMOS | Package_TO_SOT_SMD:TSOT-23_HandSoldering | Q2, Q4, Q6 |
| 2 | GND | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP6, TP7 |
| 2 | Si2301DS_PMOS | Package_TO_SOT_SMD:TSOT-23_HandSoldering | Q3, Q5 |
| 2 | optional | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R5, R6 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C2 |
| 1 | 1n | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C6 |
| 1 | 220n | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C5 |
| 1 | Antenna_Shield | Connector_Coaxial:SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount | AE1 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U2 |
| 1 | ESP_PROG_JTAG | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J4 |
| 1 | LM3940IMP-3.3 | lib_fp:SOT230P696X180-4N | U1 |
| 1 | LiFePo-Batterie | Connector_Phoenix_MSTB:PhoenixContact_MSTBVA_2,5_2-G-5,08_1x02_P5.08mm_Vertical | BT1 |
| 1 | Measurement-Selector | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | OLED_128x64 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J8 |
| 1 | Pin1-to-GND | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | Power-Selector | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | Prog | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J5 |
| 1 | RFM95W-868S2 | RF_Module:HOPERF_RFM9XW_SMD | U3 |
| 1 | Reset | Button_Switch_SMD:SW_SPST_CK_RS282G05A3 | SW2 |
| 1 | Rotary_Encoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW1 |
| 1 | Testpoints | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | UMH3N | lib_fp:SOT65P230X110-6N | Q1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_GCT_USB3076-30-A | J1 |
| 1 | U_BATT_MEASURE | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | U_BAT_ENABLE | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP5 |
| 1 | U_EXT_ENABLE | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP2 |
| 1 | U_EXT_MEASURE | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP4 |
| 1 | VCC_2 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP3 |
| 1 | ext_Measure | Connector_Phoenix_MSTB:PhoenixContact_MSTBVA_2,5_4-G-5,08_1x04_P5.08mm_Vertical | J6 |
The 58 most common of 59 parts.
Questions
How big is the Esp32LoraBoard PCB?
It measures 72 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Esp32LoraBoard use?
59 parts, built around the ESP32-WROOM-32, LM3940IMP-3.3, RFM95W-868S2 and UMH3N. 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 Esp32LoraBoard KiCad files?
From the vrees/wasserstand-harry-b repository on GitHub, at the commit this page was made from: the board is kicad/Esp32LoraBoard/Esp32LoraBoard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Esp32LoraBoard design in my own project?
Its repository states no licence, so its author keeps all rights: ask vrees before reusing the design.
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