4 layers195 × 159 mm
2 layers114.2 × 97.5 mm
PlantMonitor v102
MathewNhari/KiCadSchematics for the plant monitoring systems
- Size
- 114.2 × 97.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 61
- Pads
- 208
- Tracks, vias
- 435, 67
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 24 Apr 2026
- Updated
- 24 Apr 2026
Overview
PlantMonitor v102 is an open-source printed circuit board by MathewNhari, from the MathewNhari/KiCad repository on GitHub. It is a 2-layer board of 114.2 × 97.5 mm with 51 parts on 61 nets, routed with 435 tracks and 67 vias.
It is built around the ESP32-WROOM-32D, MAX485ED and LM2596S-3.3, with the LM2596S-5.0, XL7015E1 and IRLB8721PBF among its other parts. Its parts include 10 resistors, 9 capacitors, 8 diodes, 7 ICs and 3 transistors. It belongs with the ESP32 boards of this library.
Main components
10
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
MAX485ED
SOP-8-40℃~+85℃ 1 1 1mA 32 4.75V~5.25V 5Mbps Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSHTCRS-485 / RS-422 ICs
LM2596S-3.3
TO-263-5L-20℃~+70℃ 1 170kHz 2mA 3.3V 3A 4.5V~40V Buck Buck Built-in Fixed No TO-263-5L DC-DC Converters ROHSGRDC-DC ConvertersLM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
XL7015E1
TO-252-5-40℃~+125℃@(TJ) 1 1.25V~20V 150kHz 2.5mA 5V~80V 800mA Adjustable Buck Buck Built-in No TO-252-5 DC-DC Converters ROHSXLSEMIDC-DC Converters
IRLB8721PBF
TO-220AB-55℃~+175℃ 1 N-channel 1.077nF 110pF 13nC@4.5V 16mΩ@4.5V 2.35V 30V 360pF 62A 65W N-Channel ±20V TO-220AB MOSFETs ROHSInfineon TechnologiesMOSFETs
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
1N4007W
SOD-123FLDiodes - General PurposehongjiachengSS210
SMA(DO-214AC)-55℃~+150℃ 1 Independent 100V 2A 500uA@100V 850mV@2A SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
SS8050
SOT-323-55℃~+150℃ 1 NPN 1.5A 100MHz 100nA 200 25V 300mW 500mV 5V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 330u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C3, C4, C5, C6 |
| 3 | 1kΩ | PCM_JLCPCB:R_0402 | R1, R2, R3 |
| 3 | 47uH | Inductor_SMD:L_12x12mm_H6mm | L2, L3, L4 |
| 2 | 100uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C1, C9 |
| 2 | 10kΩ | PCM_JLCPCB:R_0603 | R8, R13 |
| 2 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D8, D9 |
| 2 | 220Ω | PCM_JLCPCB:R_0402 | R9, R12 |
| 2 | 2kΩ | PCM_JLCPCB:R_0603 | R6, R7 |
| 2 | Conn_01x02_Pin | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | DISPLAY, SWITCH |
| 2 | IRLB8721PBF | Package_TO_SOT_THT:TO-220-3_Vertical | Q2, Q3 |
| 2 | PC817 | Package_DIP:DIP-4_W7.62mm | U5, U7 |
| 2 | SS34 | PCM_JLCPCB:D_SMA | D6, D7 |
| 1 | 100nF | PCM_JLCPCB:C_0402 | C2 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Alps_RK163_Single_Horizontal | RV2 |
| 1 | 1N4007W | PCM_JLCPCB:D_SOD-123FL | D1 |
| 1 | 1uF | PCM_JLCPCB:C_0603 | C8 |
| 1 | 30kΩ | PCM_JLCPCB:R_0805 | R10 |
| 1 | 33nF | PCM_JLCPCB:C_0603 | C7 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_Horizontal | J6 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x04_Pin | Connector_JST:JST_XH_S4B-XH-A-1_1x04_P2.50mm_Horizontal | NPK |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32D | U6 |
| 1 | G5Q-1 | Relay_THT:Relay_SPDT_Omron-G5Q-1 | K2 |
| 1 | Green | PCM_JLCPCB:D_0805 | D3 |
| 1 | LM2596S-3.3 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U4 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U2 |
| 1 | MAX485E | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | Pump_Conn_01x02_Socket | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | PUMP |
| 1 | RTC_Conn_01x04_Pin | Connector_JST:JST_XH_S4B-XH-A-1_1x04_P2.50mm_Horizontal | RTC |
| 1 | Red | PCM_JLCPCB:D_0805 | D2 |
| 1 | SS210 | PCM_JLCPCB:D_SMA | D10 |
| 1 | SS8050 | PCM_JLCPCB:Q_SOT-23 | Q1 |
| 1 | UV_Conn_01x02_Socket | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | UV |
| 1 | Upload_Conn_01x04_Pin | Connector_JST:JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | UPLOAD |
| 1 | XL7015E1 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U8 |
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Questions
How big is the PlantMonitor v102 PCB?
It measures 114.2 × 97.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PlantMonitor v102 use?
51 parts, built around the ESP32-WROOM-32D, MAX485ED, LM2596S-3.3 and LM2596S-5.0. 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 PlantMonitor v102 KiCad files?
From the MathewNhari/KiCad repository on GitHub, at the commit this page was made from: the board is PlantMonitor_v102.kicad_pcb and its schematic PlantMonitor_v102.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PlantMonitor v102 design in my own project?
Its repository states no licence, so its author keeps all rights: ask MathewNhari before reusing the design.