2 layers53.8 × 62.9 mm
Environmental monitoring device
pcbcupid/Lora-Wireless-Sensor-Network
A wireless sensor network based on Lora and esp32C3. This repo will help you build a complete product from scratch to finish!
43 parts30MIT
2 layers79.2 × 68.8 mm
Environment slave
pcbcupid/Lora-Wireless-Sensor-Network30A wireless sensor network based on Lora and esp32C3. This repo will help you build a complete product from scratch to finish!
- Size
- 79.2 × 68.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 75
- Pads
- 274
- Tracks, vias
- 428, 71
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Dec 2023
- Updated
- 5 Jul 2025
Overview
Environment slave is an open-source printed circuit board by pcbcupid, from the pcbcupid/Lora-Wireless-Sensor-Network repository on GitHub, published under the MIT licence. It is a 2-layer board of 79.2 × 68.8 mm with 72 parts on 75 nets, routed with 428 tracks and 71 vias.
It is built around the ESP32-C3-MINI-1U-N4, THVD1406D and MT3608, with the BQ24074RGTR, RFM95W-868S2 and SMAJ6.8CA among its other parts. Its parts include 18 resistors, 16 capacitors, 9 diodes, 7 connectors and 6 ICs. It belongs with the ESP32 and RISC-V boards of this library.
Main components
9
ESP32-C3-MINI-1U-N4
SMD,13.2x12.5mm-104dBm -40℃~+85℃ 2.4GHz 20.5dBm 350mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3FN4 UART、SPI、I2C、I2S、USB SMD,13.2x12.5mm WiFi Modules ROHSEspressif SystemsWiFi Modules
THVD1406D
SOIC-8-40℃~+125℃ 1 1 1.7mA 256 3V~5.5V 500Kbps Enable shutdown、Automatic direction control Half-Duplex Transceiver ±16kV SOIC-8 RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICs
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
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
RFM95W-868S2
16-SMD16-SMD New Arrivals ROHSHopeRF Micro-electronicsUncategorised
SMAJ6.8CA
DO-214AC(SMA)-55℃~+150℃ 1 10.5V 1mA 38.1A 400W@10/1000us 5.8V 6.45V Bidirectional IEC 61000-4-2 TVS DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)SMAJ24
DO-214AC(SMA)-55℃~+150℃ 24V 26.7V 400W 43V 5uA 9.3A TVS DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSMeritekESD And Surge Protection (TVS/ESD)SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdLora-Wireless-Sensor-Network
This repo will teach you, how to build a hardware product based on WSN completely from scratch!
We'll walk you through all the stages :
- Purpose
- Brainstroming -> Feature Selection
- Features -> Component Selection
- Component -> Schematic Design
- Schematic Design -> PCB Design
- PCB -> Mechanical Case Design
- Finished Hardware + Code
- Final Testing
PCB DESIGN
MASTER NODE
SLAVE NODE
PCB ASSEMBLED
MASTER NODE
SLAVE NODE
CAD DESIGN
MASTER NODE
SLAVE NODE
3D PRINTING
MASTER NODE CASE
SLAVE NODE CASE
FINAL SETUP
MASTER NODE SETUP
SLAVE NODE SETUP
DASHBOARD UI
MASTER CLOUD DASHBOARD
SLAVE CLOUD DASHBOARD
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R13, R14, R16, R17 |
| 6 | 10uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C8, C10, C12, C13, C14 |
| 4 | 0.1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C4, C7, C11 |
| 4 | T-JMP | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2, JP4, JP9 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R11, R18 |
| 3 | SMAJ6.8CA | Diode_SMD:D_SMA | D3, D4, D5 |
| 2 | 20k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R8 |
| 2 | 22uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C15, C16 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 0.5A JMP | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP8 |
| 1 | 100k | Potentiometer_THT:Potentiometer_Bourns_3299W_Vertical | RV1 |
| 1 | 120R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 1 | 1A JMP | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP7 |
| 1 | 1uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 2.2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | 2.2uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12 |
| 1 | 470pf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U6 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | Battery_Cell | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT1 |
| 1 | Conn_01x10 | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J4 |
| 1 | D | Diode_SMD:D_SMB_Handsoldering | D7 |
| 1 | E1 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm | JP5 |
| 1 | E2 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm | JP6 |
| 1 | ESP32-C3-MINI-1U-N4 | ESP32_C3_MINI_1U_N4:XCVR_ESP32-C3-MINI-1U-N4 | U2 |
| 1 | L | Inductor_SMD:L_10.4x10.4_H4.8 | L1 |
| 1 | LED - Green | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D8 |
| 1 | LED - RED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D9 |
| 1 | MIC5219-3.3v | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U5 |
| 1 | NO | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP3 |
| 1 | PWR OUT | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J5 |
| 1 | Polyfuse | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 1 | RFM95W-868S2 | RF_Module:HOPERF_RFM9XW_SMD | U3 |
| 1 | RS485 OUT | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J7 |
| 1 | SMAJ24 | Diode_SMD:D_SMB_Handsoldering | D1 |
| 1 | SS34 | Diode_SMD:D_SMB_Handsoldering | D2 |
| 1 | Solar | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J3 |
| 1 | THVD1406 | Package_SO:SO-8_5.3x6.2mm_P1.27mm | U4 |
| 1 | U.FL-R-SMT_01_ | U.FL-R-SMT_01_:HRS_U.FL-R-SMT_01_ | J2 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4125-xx-x_6P_TopMnt_Horizontal | J6 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D6 |
The 71 most common of 72 parts.
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Questions
How big is the Environment slave PCB?
It measures 79.2 × 68.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Environment slave use?
72 parts, built around the ESP32-C3-MINI-1U-N4, THVD1406D, MT3608 and BQ24074RGTR. 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 Environment slave KiCad files?
From the pcbcupid/Lora-Wireless-Sensor-Network repository on GitHub, at the commit this page was made from: the board is Kicad/environment slave/environment slave.kicad_pcb and its schematic Kicad/environment master/Environmental_monitoring_device.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Environment slave design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).