4 layers65 × 56 mm
2 layers65 × 56 mm
Pi hat LoRa
Doenec/pi-hat1collection of different shields to be stacked in raspberry pi
- Size
- 65 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 80
- Nets
- 78
- Pads
- 280
- Tracks, vias
- 312, 236
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Jun 2025
- Updated
- 13 Jun 2025
Overview
Pi hat LoRa is an open-source printed circuit board by Doenec, from the Doenec/pi-hat repository on GitHub, published under the MIT licence. It is a 2-layer board of 65 × 56 mm with 80 parts on 78 nets, routed with 312 tracks and 236 vias.
It is built around the ADS1115IDGSR, MT3540 and AMS1117-3.3, with the CN3163, DS1307Z+T&R and DW01+G among its other parts. Its parts include 19 capacitors, 15 resistors, 11 diodes, 8 connectors and 7 ICs. It belongs with the radio and wireless boards of this library.
Main components
12
ADS1115IDGSR
VSSOP-10-40℃~+125℃ 16 1LSB 2 2.048V 2V~5.5V 500nA 860Hz 8Hz、16Hz、32Hz、64Hz、128Hz、250Hz、475Hz、860Hz Built-in Built-in I2C Sigma-Delta Support Yes VSSOP-10 Analog to Digital Converters (ADC) ROHSTexas InstrumentsAnalog To Digital Converters (ADC)
MT3540
SOT-23-5-40℃~+85℃ 1 1.2MHz 1.5A 2.5V~5.5V 40uA Adjustable Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHSXI'AN Aerosemi TechDC-DC Converters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
CN3163
ESOP-8-40℃~+85℃ 1 1A 3uA 4.2V 4.4V~6V Charging IC Lithium Battery Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSCONSONANCEBattery Management
DS1307Z+T&R
SOIC-80℃~+70℃ 1.5mA 300nA 4.5V~5.5V Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output External I2C SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
DW01+G
SOT-23-6Battery ManagementFortune Semicon
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky Diodes
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky DiodesQ13FC1350000400
SMD3215-2PSMD3215-2P Crystals ROHSSeiko EpsonCrystals
TFM252012ALMA4R7MTAA
10081.6A 1.9A 180mΩ 4.7uH ±20% 1008 Power Inductors ROHSTDKPower Inductors
CL31A476MPHNNNE
120610V 47uF X5R ±20% 1206 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
CR1220-2
--40~80℃ Battery base CR1220 Phosphor bronze - Battery holder base ROHSQ&JButton And Strip Battery Connector
README
README.mdpi-hat
collection of different shields to be stacked in raspberry pi
Parts
80| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3, C4, C6, C13, C23, C28, C30, C33 |
| 6 | 10K | Resistor_SMD:R_0402_1005Metric | R5, R9, R20, R21, R24, R25 |
| 6 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MH1, MH2, MH3, MH4, MH5, MH6 |
| 5 | 10uF | Capacitor_SMD:C_0402_1005Metric | C5, C15, C22, C25, C34 |
| 5 | 1uF | Capacitor_SMD:C_0402_1005Metric | C2, C9, C16, C19, C27 |
| 3 | 1K | Resistor_SMD:R_0402_1005Metric | R3, R8, R12 |
| 3 | 1N5819WS | Diode_SMD:D_SOD-323 | D3, D7, D9 |
| 3 | SS34 | Diode_SMD:D_SMA | D4, D8, D11 |
| 2 | 150K | Resistor_SMD:R_0402_1005Metric | R4, R10 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 2 | CONN | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6, J10 |
| 2 | JUMPER | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP5 |
| 1 | 1.1K | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 100R | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 32.768Khz | Crystal:Crystal_SMD_G8-2Pin_3.2x1.5mm | Y1 |
| 1 | 4.7uH | Inductor_SMD:L_1008_2520Metric | L1 |
| 1 | 47K | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 47uF | Capacitor_SMD:C_1206_3216Metric | C10 |
| 1 | 8205A | Package_TO_SOT_SMD:SOT-23-6 | Q1 |
| 1 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U2 |
| 1 | AIN | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J7 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U8 |
| 1 | Ai-Thinker-Ra-01 | RF_Module:Ai-Thinker-Ra-01-LoRa | U13 |
| 1 | Antenna | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | AE1 |
| 1 | BAT | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | BT1 |
| 1 | BATBYPASS | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP6 |
| 1 | Battery_Cell | nodemcu:cr1220-2 | BT3 |
| 1 | CN3163 | Package_SO:Texas_HSOP-8-1EP_3.9x4.9mm_P1.27mm_ThermalVias | U3 |
| 1 | CONN | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J4 |
| 1 | CONN | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | CONN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | DS1307Z+ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | DW01+G | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | GLED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | LED RED | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LOGO | nodemcu:lora 7mm | G*** |
| 1 | LOGO | nodemcu:EC_icon10mm | G*** |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | MT3540 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | RLED | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | SS210 | Diode_SMD:D_SMA | D6 |
| 1 | USB_C_Plug | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | P1 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D10 |
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Questions
How big is the Pi hat LoRa PCB?
It measures 65 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pi hat LoRa use?
80 parts, built around the ADS1115IDGSR, MT3540, AMS1117-3.3 and CN3163. 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 Pi hat LoRa KiCad files?
From the Doenec/pi-hat repository on GitHub, at the commit this page was made from: the board is Pi hat LoRa/Pi hat LoRa.kicad_pcb and its schematic Pi hat LoRa/Pi hat LoRa.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pi hat LoRa 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).