4 layers70 × 70 mm
4 layers70 × 40 mm
Lora daq module
danielkm-ee/lora_daq_module1This board is powered by the Seeed Studios Wio-E5 LoRA module for use with it's designated antenna.
- Size
- 70 × 40 mm
- Copper layers
- 4
- Thickness
- 1.59 mm
- Parts
- 81
- Nets
- 73
- Pads
- 302
- Tracks, vias
- 453, 197
- Pours
- 17
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Oct 2025
- Updated
- 12 Dec 2025
Overview
Lora daq module is an open-source printed circuit board by danielkm-ee, from the danielkm-ee/lora_daq_module repository on GitHub, published under the MIT licence. It is a 4-layer board of 70 × 40 mm with 81 parts on 73 nets, routed with 453 tracks and 197 vias.
It is built around the CAT24C256LI, MCP73833 and OPA333AID, with the TPS2116DRL, TPS63002DRC and BAS40-04 among its other parts. Its parts include 23 resistors, 21 capacitors, 9 ICs, 8 connectors and 5 diodes. It belongs with the radio and wireless boards and the STM32 boards of this library.
Main components
9
CAT24C256LI
PDIP-81,000,000 cycles 1.8V~5.5V 100 Years 256Kbit 400kHz 5ms Hardware write protection function、Noise suppression function、Built-in power-on reset (POR) I2C PDIP-8 EEPROM ROHSonsemiEEPROM
MCP73833
UncategorisedMicrochip Technology
OPA333AID
SOIC-8-2.75V~-900mV、900mV~2.75V -40℃~+125℃ 0.16V/us 1 1.8V~5.5V 130dB 140pA 17uA 20nV/℃ 2uV 350kHz 5mA 70pA Rail-to-Rail Input, Rail-to-Rail Output Zero drift / auto-zero、ESD protection、Built-in compensation、Overvoltage protection、Reverse-phase input protection SOIC-8 Precision Op Amps ROHSTexas InstrumentsPrecision Op Amps
TPS2116DRL
SOT-583Operating status indication SOT-583 Power Management - Specialized ROHSTexas InstrumentsPower Distribution Switches
TPS63002DRC
UncategorisedTexas Instruments
BAS40-04
SOT-23Schottky DiodeshongjiachengMJTP1250
插件Tactile SwitchesAPEMCONSMA001-C-G
插件-65℃~+165℃ 1 18GHz 500V 50Ω Board Side Inner Bore Positive Pin SMA 插件 Coaxial Connectors (RF) ROHSTE ConnectivityCoaxial Connectors (RF)
SP0503BAHTG
SOT-143-55℃~+125℃ 10A@8/20us 14V 150W@8/20us 30pF、60pF 5.5V 6V 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
readme.mdLoRA DAQ Node
For our Electrical and Computer Engineering practicum at Portland State for 2025 we have developed a LoRA based data acquisition node that can be used for data collection and monitoring systems over large areas.
This board is powered by the Seeed Studios Wio-E5 LoRA module for use with it's designated antenna.
Supported Peripherals
We've done our best to provide a versatile range of peripherals for high quality data collection and application flexibility. This includes a UART interface for communicating with the device via it's USB-C port, a SWD interface for loading and debugging applications, a 16-bit ADC and I2C connector that can be used with analog and I2C compatible sensors.
The device may be powered via it's USB-C (USB 2.0) connection, or by a 1s1p lithium ion battery. The device also supports battery charging when powered by USB-C with the battery connected.
List of Peripherals
- 16-bit ADC
- I2C interface
- MicroSD card slot
- 2 external UART interfaces (one via USB-C port)
- 6-pin SWD header for ST-Link v2
- SMA connector for the 868-916MHz LoRA Antenna
- 2-pin JST EH connector for battery power and charging
Credits
- Manaf Alali - hardware schematics
- Eyad Ahmed - firmware
- Daniel Monahan - hardware schematics and layout
- Saleh Sabti - hardware schematics
- Dingyu Zhou - firmware
All team members contributed to every aspect of the project, going beyond the general roles specified here.
Portland State University ECE411 Practicum project, Fall 2025
Parts
81| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1u | Capacitor_SMD:C_0603_1608Metric | C5, C10, C15, C16, C17, C20, C21 |
| 7 | 4.7k | Resistor_SMD:R_0603_1608Metric | R2, R3, R6, R7, R8, R9, R12 |
| 5 | .1u | Capacitor_SMD:C_0603_1608Metric | C1, C6, C7, C9, C12 |
| 3 | 0 | Resistor_SMD:R_1812_4532Metric | R21, R22, R23 |
| 3 | 470 | Resistor_SMD:R_0603_1608Metric | R13, R14, R15 |
| 2 | 0 | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | 10n | Capacitor_SMD:C_0603_1608Metric | C11, C13 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R16, R19 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 1 | 0 | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 0 | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 10k_therm | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric | C18 |
| 1 | 150k | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 3.3uH | Inductor_SMD:L_Coilcraft_LPS3010 | L2 |
| 1 | 33u | Capacitor_SMD:C_1206_3216Metric | C19 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 4.7u | Capacitor_SMD:C_1206_3216Metric | C8 |
| 1 | 47 | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 470k | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 47n | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | 680k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | ADS1110A0IDBVR | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | BAS40-04 | Package_TO_SOT_SMD:SOT-23 | D7 |
| 1 | CAT24C256 | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm | U5 |
| 1 | CP2102N-Axx-xQFN20 | Package_DFN_QFN:SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U3 |
| 1 | EXT_I2C | Connector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J8 |
| 1 | EXT_UART | Connector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J4 |
| 1 | Green | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | JST3pinfemale | Connector_JST:JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J1 |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U6 |
| 1 | MCP73833 | Package_SO:MSOP-10_3x3mm_P0.5mm | U9 |
| 1 | MJTP1250 | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H5.0_APEM_MJTP1250 | SW1 |
| 1 | Micro_SD_Card_Det1 | Connector_Card:microSD_HC_Molex_104031-0811 | J6 |
| 1 | OPA333 | Package_TO_SOT_SMD:SOT-353_SC-70-5_Handsoldering | U1 |
| 1 | Red | LED_SMD:LED_0603_1608Metric | D6 |
| 1 | SMA_Edge_50Ω | Connector_Coaxial:SMA_Molex_73251-1153_EdgeMount_Horizontal | J2 |
| 1 | SP0503BAHT | Package_TO_SOT_SMD:SOT-143 | D3 |
| 1 | SWD | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J5 |
| 1 | TPS2116DRL | Package_TO_SOT_SMD:SOT-583-8 | U7 |
| 1 | TPS63002 | Package_SON:Texas_DRC0010J_ThermalVias | U8 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
| 1 | Wio-E5_STM32WLE5JC | LoRa-E5:LoRa-E5 | U4 |
| 1 | Yellow | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | cp2102_3v3reg | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1 |
| 1 | jst_b2beh | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J7 |
| 1 | tp_3v3 | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP5 |
| 1 | tp_5v | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP4 |
| 1 | tp_5vbatt | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP3 |
| 1 | tp_batgnd | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP13 |
| 1 | tp_rstup | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP9 |
| 1 | tp_rusb | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP8 |
| 1 | tp_sig+ | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP15 |
| 1 | tp_siggnd | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP12 |
| 1 | tp_usbgnd | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP14 |
| 1 | tp_vbatt | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP2 |
| 1 | tp_vbus | TestPoint:TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP10 |
Questions
How big is the Lora daq module PCB?
It measures 70 × 40 mm and has 4 copper layers, 1.59 mm thick.
What parts does the Lora daq module use?
81 parts, built around the CAT24C256LI, MCP73833, OPA333AID and TPS2116DRL. 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 Lora daq module KiCad files?
From the danielkm-ee/lora_daq_module repository on GitHub, at the commit this page was made from: the board is hardware/lora_daq_module/lora_daq_module.kicad_pcb and its schematic hardware/lora_daq_module/adc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lora daq module 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).
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