4 layers60 × 79 mm
Speaking clock smd
lhm0/talking_clock
A talking clock for visually impaired users. ESP32 controlled, fully offline, long battery life.
89 parts1
2 layers88.5 × 71.5 mm
MSolarWeather
cfdev/mSolarWeather1This project use the SparkFun weather meter kit and other sensors
- Size
- 88.5 × 71.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 96
- Nets
- 85
- Pads
- 410
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Jun 2025
- Updated
- 31 Oct 2026
Overview
MSolarWeather is an open-source printed circuit board by cfdev, from the cfdev/mSolarWeather repository on GitHub, published under the MIT licence. It is a 2-layer board of 88.5 × 71.5 mm with 96 parts on 85 nets.
It is built around the ESP32-S3-WROOM-1-N16R2, DS3231MZ/V+ and TPS63021, with the USBLC6-2SC6, IRLML6401 and NSR0320MW2 among its other parts. Its parts include 23 resistors, 21 capacitors, 13 diodes, 11 connectors and 6 ICs. It belongs with the ESP32 boards of this library.
Main components
7
ESP32-S3-WROOM-1-N16R2
SMD,25.5x18mm-103.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 On-board PCB Antenna UART、SDIO、SPI、I2C、GPIO、PWM、ADC、I2S、JTAG、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
DS3231MZ/V+
SOIC-8-40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Alarm function、Locking and tamper-proof、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksTPS63021
UncategorisedTexas Instruments
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
IRLML6401
SOT-23-55℃~+150℃ 1 P-Channel 1.3W 125pF 12V 15nC@5V 180pF 4.3A 830pF 85mΩ@1.8V 950mV P-Channel SOT-23 MOSFETs ROHSKEXINMOSFETs
NSR0320MW2
SOD-323-55℃~+125℃ 1 Independent 1A 20V 500mV@900mA 50uA@15V 5A SOD-323 Schottky Diodes ROHSonsemiSchottky Diodes
CR1220-2
--40~80℃ Battery base CR1220 Phosphor bronze - Battery holder base ROHSQ&JButton And Strip Battery Connector
README
README.mdmSolarWeather
This project use the SparkFun weather meter kit and other sensors, the brain of this Weather Station is an ESP32-S3-WROOM-1.
Alimentation
- Battery 32700 LiFePo4 7200mAh
- SolarPanel 5 Volts 400mA
Sensors
- Internal Temperature (BME280)
- Humidity (BME280)
- Barometric Pressure (BME280)
- External Temperature (PT100)
- Wind Speed ( Sparkfun Weather Meter )
- Wind Direction ( Sparkfun Weather Meter )
- Rain Gauge ( Sparkfun Weather Meter )
Parts
96| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7, R8, R9, R12, R13, R16, R18, R19, R20 |
| 7 | 22uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C6, C15, C16, C17, C19, C20, C21 |
| 6 | 4.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R11, R17, R21, R22, R23 |
| 5 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C4, C7, C14 |
| 5 | LED PSupply | LED_SMD:LED_PLCC-2_3.4x3.0mm_KA | D1, D10, D11, D12, D13 |
| 4 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C11, C12, C13 |
| 4 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C8, C9, C10 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | ESD3.3 | Diode_SMD:D_SOD-923 | D2, D3, D4 |
| 3 | IRLML6401 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 3 | Polyfuse 1.5A | Fuse:Fuse_1206_3216Metric | F2, F3, F4 |
| 2 | 5.1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R15 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | NSR0320 | Diode_SMD:D_SOD-323_HandSoldering | D6, D7 |
| 1 | 1.5uH | Inductor_SMD_Wurth:L_Wurth_WE-LQSH-4020 | L1 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 22uF | Capacitor_SMD:C_Elec_5x5.4 | C18 |
| 1 | 3.3V | TestPoint:TestPoint_Pad_D2.0mm | TP2 |
| 1 | 600 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 1 | Ai-Thinker-Ra-01 | RF_Module:Ai-Thinker-Ra-01-LoRa | U2 |
| 1 | BLM21PG600SN1D | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1 |
| 1 | BME280_I2C module | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J6 |
| 1 | BQ25185 | Package_SON:WSON-10-1EP_2.5x2.5mm_P0.5mm_EP1.2x2mm_ThermalVias | U6 |
| 1 | CHG Orange | LED_SMD:LED_PLCC-2_3.4x3.0mm_KA | D9 |
| 1 | CR1220 | Battery:BatteryHolder_Keystone_500 | BT1 |
| 1 | DS3231MZ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | Debug 1 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | Debug 2 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J4 |
| 1 | ESP32-S3-WROOM-1-N16R2 | RF_Module:ESP32-S3-WROOM-1 | U4 |
| 1 | FAULT Red | LED_SMD:LED_PLCC-2_3.4x3.0mm_KA | D8 |
| 1 | I2C ext | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4-5.08_1x04_P5.08mm_Horizontal | J9 |
| 1 | I2C_PWR | TestPoint:TestPoint_Pad_D2.0mm | TP4 |
| 1 | JST2PH Batt LiFePo4 3.2v | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J10 |
| 1 | LED RGB NeoPixel | LED_SMD:LED_Inolux_IN-PI554FCH_PLCC4_5.0x5.0mm_P3.2mm | D5 |
| 1 | LUX_I2C module | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J5 |
| 1 | Lora_PWR | TestPoint:TestPoint_Pad_D2.0mm | TP5 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | J2 |
| 1 | Polyfuse 2.6A | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | RAIN | Connector_RJ:RJ14_Connfly_DS1133-S4_Horizontal | J8 |
| 1 | SD_PWR | TestPoint:TestPoint_Pad_D2.0mm | TP3 |
| 1 | SW_boot | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KSC9xxG | SW1 |
| 1 | SW_rst | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KSC9xxG | SW2 |
| 1 | SW_user | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KSC9xxG | SW3 |
| 1 | Solar connector | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J11 |
| 1 | TPS63021 | mSolarLib:VSON_DSJ-14-3x4mm_P0.5mm_ThermalVias | U5 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | USB_C_USB2.0 | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J1 |
| 1 | VBatt | TestPoint:TestPoint_Pad_D2.0mm | TP1 |
| 1 | WIND | Connector_RJ:RJ14_Connfly_DS1133-S4_Horizontal | J7 |
Questions
How big is the MSolarWeather PCB?
It measures 88.5 × 71.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MSolarWeather use?
96 parts, built around the ESP32-S3-WROOM-1-N16R2, DS3231MZ/V+, TPS63021 and USBLC6-2SC6. 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 MSolarWeather KiCad files?
From the cfdev/mSolarWeather repository on GitHub, at the commit this page was made from: the board is mSolarWeather.kicad_pcb and its schematic mSolarWeather.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MSolarWeather 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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