4 layers50 × 50 mm
ESP32-C6
Batterhead221/esp32-c6_microcontroller
custom esp32-c6 development board with rgb status led, user input, i2c expansion, oled support, and onboard environmental sensing.
42 parts
2 layers126 × 39.5 mm
Pot sensor
Manolets/potsensor_schematicsThis repo contains the KiCad project files for a battery powered plant sensor.
- Size
- 126 × 39.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 59
- Pads
- 226
- Tracks, vias
- 336, 331
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 18 Sep 2026
- Updated
- 16 Oct 2026
Overview
Pot sensor is an open-source printed circuit board by Manolets, from the Manolets/potsensor_schematics repository on GitHub. It is a 2-layer board of 126 × 39.5 mm with 55 parts on 59 nets, routed with 336 tracks and 331 vias.
It is built around the ESP32-C3, HDC3020DEFR and W25Q80DVSNIG, with the BQ24074RGTR, TPS22917DBV and USBLC6-2P6 among its other parts. Its parts include 18 capacitors, 15 resistors, 7 ICs, 4 diodes and 2 switches. It belongs with the sensors and measurement boards and the ESP32 and RISC-V boards of this library.
Main components
7
ESP32-C3
QFN-32-EP(5x5)12bit 160MHz 22 3V~3.6V Others QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSEspressif SystemsMicrocontrollers (MCU/MPU/SOC)
HDC3020DEFR
WSON-8(2.5x2.5)-40℃~+125℃ 0%RH~100%RH 1.62V~5.5V 16bit 400nA Built-in heater、Low power drive measurement、Drift/aging compensation I2C ±0.1℃ ±0.5%RH WSON-8(2.5x2.5) Temperature and Humidity Sensor ROHSTexas InstrumentsTemperature And Humidity Sensor
W25Q80DVSNIG
SOIC-8-40℃~+85℃ 100,000 cycles 104MHz 10uA 2.7V~3.6V 20 Years 200ms@(64KB) 800us 8Mbit Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8 NOR FLASH ROHSWinbond ElecNOR FLASH
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
TPS22917DBV
SOT-23-6-40℃~+125℃ 0V~5.5V 1 2A 80mΩ Active High Load Switch Output discharge function、Soft-start、Reverse current blocking SOT-23-6 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
BAT54
SOT-23200mA 2uA@25V 30V 800mV@100mA Independent SOT-23 Schottky Diodes ROHSFOSANSchottky Diodes
README
README.mdPot Sensor Schematics
This repo contains the KiCad project files for a battery powered plant sensor.
Features a capacitative soil moisture sensor, a temperature and humidity sensor. To export the data, it has a 2.4GHz radio antenna and a USB-C connector for charging the battery and programming the ESP32.
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100n | Capacitor_SMD:C_0402_1005Metric | C7, C8, C9, C16, C17, C18 |
| 3 | 10K | Resistor_SMD:R_0603_1608Metric | R4, R7, R10 |
| 3 | 10µ | Capacitor_SMD:C_0402_1005Metric | C4, C13, C14 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric | R1, R3 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C2, C15 |
| 2 | 30p | Capacitor_SMD:C_0402_1005Metric | C5, C6 |
| 2 | 4k7 | Resistor_SMD:R_0402_1005Metric | R11, R12 |
| 2 | 5K1 | Resistor_SMD:R_0402_1005Metric | R8, R9 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 1K78 | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 1n84 | Inductor_SMD:L_0402_1005Metric | L2 |
| 1 | 2.4GHz | MyDesigns:2.4GHz_Antenna | A1 |
| 1 | 22R | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 22µ | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 2µ2 | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 36k5 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 3p9 | Capacitor_SMD:C_0402_1005Metric | C10 |
| 1 | 4p9 | Capacitor_SMD:C_0402_1005Metric | C11 |
| 1 | 4µ7 | Capacitor_SMD:C_0402_1005Metric | C1 |
| 1 | 510k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 60R | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | ABM8-40MHZ | ABM8_40_000MHZ_10_1_U_T:XTAL_ABM8-40.000MHZ-10-1-U-T | Y1 |
| 1 | BAT54 | Package_TO_SOT_SMD:SOT-23 | D3 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_TS-1088-xR025 | SW2 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U2 |
| 1 | EN | Button_Switch_SMD:SW_SPST_TS-1088-xR025 | SW1 |
| 1 | ESP32-C3 | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.7x3.7mm | U1 |
| 1 | GREEN | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | HDC3020DEFR | footprints:DEF0008A-IPC_B | U7 |
| 1 | LiionBatt | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | JSTconnector1 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | Soil Hum Sensor | MyDesigns:Capacitative Sensor | C12 |
| 1 | TPS22917DBV | Package_TO_SOT_SMD:SOT-23-6 | U8 |
| 1 | TPS63900 | Package_SON:WSON-10-1EP_2.5x2.5mm_P0.5mm_EP1.2x2mm_ThermalVias | U3 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U5 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | W25Q80DVSNIG | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | YELLOW | LED_SMD:LED_0603_1608Metric | D4 |
The 52 most common of 55 parts.
Questions
How big is the Pot sensor PCB?
It measures 126 × 39.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pot sensor use?
55 parts, built around the ESP32-C3, HDC3020DEFR, W25Q80DVSNIG 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 Pot sensor KiCad files?
From the Manolets/potsensor_schematics repository on GitHub, at the commit this page was made from: the board is pot_sensor.kicad_pcb and its schematic pot_sensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pot sensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask Manolets before reusing the design.
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